11 Best Under Sink Reverse Osmosis Systems in 2024 (Lab-)Tested + Reviewed

[@boswater6065]

*Under Sink RO Recommendations* *1. Best Overall + Best Tankless: Waterdrop G3P600* → Buy Here: www.waterdropfilter.com/products/tankless-reverse-osmosis-system-g3p600?ref=aqhvda420xp - Use code “G3P600BOS” for 5% off on top of any current Waterdrop sale! *2. Best Tank-Based + Best Budget Pick: Aquasana SmartFlow* → Buy Here: bos-water.com/youtube/aquasana-smartflow-top-us - Use code “AQBOS50” for up to 50% off! *3. Best Made in USA: US Water Systems All American 5-Stage RO* → Buy Here: uswatersystems.com/products/all-american-5-stage-reverse-osmosis-system?sca_ref=5504631.RY19r727Ck&sca_source=yttopusro - Use code “BESTRO5” for 5% off! *4. Fastest Filtration + Lowest Wastewater: Waterdrop X12* → Buy Here: www.waterdropfilter.com/products/reverse-osmosis-system-x12?ref=aqhvda420xp - Use code “X12BOS” for 5% off on top of any current Waterdrop sale!

[@Mr.C-Mister]

Can you confirm whether or not these systems have those dangerous chemicals that you spoke of 6 months ago. Especially found in your #1 pick it has organ damaging chemicals that it leached into the system that weren't present in the faucet water. Super dangerous. Please share those results.

[@boswater6065]

@@Mr.C-Mister They didn't - at least not based on our testing.

[@uswatersystems]

The host is fantastic! Very informative video. Your detail w/ each system is what makes this video so different and honest. We appreciate that for sure!

[@dinavert]

Thank you so much for the time and testing of all these systems! This video has answered so many of my questions and help me make the decision on which system I will purchase. Appreciate it!!

[@boswater6065]

You're very welcome!

[@BoomaOhDet]

Very thorough and well done. Appreciate the work done.

[@Nightss10]

Thank you very much for all of your work!! Can't wait to set one of these up!

[@Dustinrhoades]

Extremely thorough. Thank you

[@laurastaples8397]

Your reviews are the best. You guys are professional, thorough, and honest. We deeply appreciate your integrity and work ethic.

[@Vincent-rq4dx]

Wow I was just looking at the countertop RO systems videos and was wondering what under the sink options were best. Lucky timing on the video! Thanks for the comprehensive video and testing! Can you include prices of both the systems and the filters in the charts as well! You guys are almost at Project Farm review level

[@boswater6065]

You are welcome. That info is included in the charts already. Pricing is very close to the top. Replacement filter cost is a bit further down.

[@tim7054]

This review is absolutely perfect! Let's hope the manufacturers start taking remineralization more seriously now.

[@enes-the-cat-father]

I admire the detail of the testing you did here. Huge respect!

[@Lafiro]

Just recently installed the Waterdrop X16 and it’s an amazing system. 2 seconds to fill a cup sometimes catches you off guard at the speed of it. Happy so far

[@boswater6065]

Thanks for sharing!

[@Emely-i4e]

This is amazing! Thank you Are you planning to test shower heads with filters? It would be great to see a comparison of different ones to help with hard water 😊

[@boswater6065]

We're planning to test shower filters but I doubt that they'll do much to reduce water hardness in the long run. Hardness minerals can be removed from water using ion exchange, but depending on how hard your water is, I'd expect a shower filter to run out of softening capacity really fast.

[@maratmesyagutov6303]

Such an amazing work you guys are doing. Especially benchmarking the actual performance by looking into input and output water compounds. Huge respect and appreciation.

[@boswater6065]

Thank you so much! We get lots of complaints and criticism too (some of it is deserved of course), so any positive feedback helps us stay motivated!

[@LK-wm7te]

Thank you so much for this video! Very helpful!

[@waterdropfilter.official]

Such a comprehensive and detailed video! Thanks for the thorough review of the G3P600 and X12-this is fantastic! 💙

[@innercircle7957]

Im still researching about getting the Waterdrop under sink. Something to keep in mind who have the Waterdrop under sink units i found is. Every month pull out your filters and check to see if there is build up and clean them off. Waterdrop said its possible the filters are going bad faster than expected and the build up is most likely occurring at the end of the life of the filters. Also depends on your incoming water. Everyone is different, just something to keep in mind in case.

[@MrRob111]

How do you clean off the filters if there is build up?

[@innercircle7957]

U can just wipe them off. If there's mineral build up for some people. It seems that the filters won't pull out easy for changing if the mineral build up is to much.

[@lindabrown8975]

Great video. So informative. Didn’t hear the discount code. Could you please provide it? Thanks

[@breakingberta7220]

Great video, appreciate your huge effort! Your code applies only to the G3P600, do you happen to have one for the G3P800 as well?

[@boswater6065]

We do have a code (BOSG3P800). But it's "only" for a flat 20% off and I think the codes provided directly by Waterdrop are better.

[@thatkid9896]

YES!!! Finally!! I bought the WaterDropX12 and I have no complaints! I LOVE IT! It was this or Kangen but I wish you guys would do a test with the trendy water tank Kangen. Thanks!

[@boswater6065]

Thanks for sharing!

[@s9lecomp]

I just ordered an X12 too. They were the first one I looked and I didn't know much about RO systems. I was very pleased to see it got top marks from this channel and Freshness. I checked out some other models and reviews and decided on the X12.

[@boswater6065]

@s9lecomp Glad we could help!

[@thatkid9896]

@@boswater6065 Will you guys do a video on trendy water filters like @Kangen? Thanks?

[@boswater6065]

@thatkid9896 This one is on our list already!

[@Teal.Baboon]

Great video! Which one would you choose between under the countertop or countertop ro system? Which one has the best filtration and cost comparison?

[@boswater6065]

Thank you and great question. I'd say this would be a race between the Waterdrop G3P600 and the AquaTru Classic. Both are pretty similar in upfront price (provided that you buy the G3P600 when on sale), but the AquaTru Classic costs only around $100-120 a year to maintain whereas the Waterdrop G3P600 costs around $200. Also, the AquaTru Classic has way more NSF certifications for contaminant reduction and it achieved slightly better results in our lab testing. So from that perspective the AquaTru Classic would come out on top. But if you'd lean more towards the Waterdrop G3P600, I think you'd still make a great choice and had nothing to worry about.

[@ArthurDentZaphodBeeb]

Very thorough and informative review. Brava. We are in middle of kitchen remodel and had saved our tank-based RO system (Culligan). Didn't know there were tankless systems available but we have lowish water pressure and a tankless system seems a better solution. One question I have is about using a tankless system for multiple faucets and ice maker. Our current tank system simply supplies as needed to multiple sources - how would a tankless system work for multiple locations? Would a tankless system activate if just the icemaker demanded water? Or does it only activate when the digital faucet is activated at the sink? Thanks!

[@boswater6065]

Glad it was helpful! According to Waterdrop, you could connect the system to your refrigerator/ice maker, but it's not recommended because based on the pressure requirements and other factors, you might run into issues like frequent start-stop cycles.

[@dominiccuccia]

When choosing the best RO system for micro plastics, what do I look for on the testing? I believe I heard you say micro plastics once and you did say pfos a couple times? Also if we are trying to filter out micro plastics out of the water, it bothers me to see all the plastic water pipe/fittings and even the filters are plastic. Are we really getting rid of the plastics if we’re using plastic as a delivery and filter?

[@boswater6065]

We can't test for PFAS or microplastic reduction right now, because it is extremely expensive. I think the problem with microplastic, or probably nanoplastic, is that there doesn't exist a lot of research yet, so how severe is the leaching of different types of plastic at specific contact times, and what are the potential health effects. But if you're worried, you could use a tankless RO and store the water in a glass container. This would reduce contact time to a bare minimum. Other than that, maybe look into water distillers - you'd need one that doesn't use any plastic parts that the water could touch. They are just really inconvenient to use. As for PFAS which as far as I know don't categorize as microplastic, they are really easy to remove using simple activated carbon which every RO has.

[@sivucit]

Hi have you used reminarilzation in WATER DROP G3. I was told that it is not adding value. please advise.

[@boswater6065]

We did not test the G3 remineralization filter. But for all the RO systems we tested with remineralization, it looked like there wasn't a whole lot of calcium/magnesium added into the water compared to the water that wasn't remineralized.

[@lyla305]

Great comprehensive video! This will help my family choose the right one for us. Where can I see the test sheets? Maybe I missed that somewhere.

[@boswater6065]

The Google Sheet is linked in the video description, and all the lab reports are listed at the top of the "filtration results" tab.

[@Beachlover19-l3z]

Love your videos! These are so informative and the best water filter reviews out there. They make the others seem pointless! Can you elaborate on the 3.5/5 rating for the Cloud and where do I find their test results? I looked at the google doc but don't see it there, thank you!

[@boswater6065]

There are 3 sheets in the document. You need to go to the one named "Filtration Results". The second to last column is for the Cloud RO. At the top you will find both the unfiltered water report and the filtered water report. The Cloud RO did a solid job in terms of filtration. We also loved almost all the other product aspects. What we didn't like was the app. For one, there was a huge discrepancy between the TDS levels provided by the app (for example, it showed 212, 62, and 161 ppm for tap, filtered, and remineralized water respectively, whereas real values based on our lab reports were 239.4 ppm for tap and 31.2 ppm for the remineralized water). The app also makes it appear as if the Cloud RO system could measure the levels of the different minerals in your remineralized water, however, this isn't the case at all. All the system does is measure the TDS level of the remineralized water. Even the Cloud RO website says that the app simply provides a "ballpark snapshot" for the mineral content, so we found this a bit misleading. And as with pretty much all other systems, remineralization doesn't seem to work really well, because according to our lab results, the Cloud RO didn't add a whole lot of minerals.

[@avcrimson]

Question about aluminum. The lab test says "not tested." Does it mean you didn't test whether there was aluminum present or that it was not detected in the purified water? I'd really appreciate you sharing. Thanks so much for this amazing review!

[@boswater6065]

The sheet says "not tested" in case there wasn't any aluminum (or other contaminant) detected in the unfiltered water. What you need to remember is that we took a filtered and an unfiltered sample for every under sink RO. But we didn't find the same substances in every of the unfiltered water samples. So what "not tested" really means is that we couldn't test for the reduction of aluminum for example, because there wasn't any aluminum in the unfiltered water. Hope this makes sense.

[@jcristina6396]

Thank you for the reviews, does the RO system tank get mold usually? How would you take care of that ? I like the Aquasana because of the effectiveness on removing nasty stuff, is it BPA free and able to install on my refrigerator ? Thank you 🙏

[@boswater6065]

Great question. RO tanks are prone to bacteria/biofilm and other stuff if they aren’t cleaned/sanitized regularly. But the process isn't too complex and as long as it’s completed on schedule (most manufacturers recommend once or twice a year) you shouldn't have issues. The basic idea is to add a small amount of sanitizing chemical like bleach into the tank, letting it sit, and then flushing it out.

[@jcristina6396]

@@boswater6065 Thank you 🙏

[@gailu8307]

Thank you for this video!

[@boswater6065]

You are so welcome!

[@MichelleOlsen-u9n]

Thank you for your reviews! With the water drop, I’d the UV light sterilizer important to purchase as well?

[@boswater6065]

You're welcome! I don't think so, no.

[@josmo2256]

Finally a real review instead of just copy and paste ratings.

[@zoew4300]

Thanks for sharing! Is methylene chloride tested ? I am missing it from the test sheets but again it could be showing up with a different name. Thanks!

[@boswater6065]

Yes, we've tested for methylene chloride. Each individual lab report (to be found in the Google Sheet) lists methylene chloride on page 4. Based on our testing, only one system leached a tiny amount of methylene chloride. That said, please always keep in mind that we didn't repeat the lab testing to confirm our findings, so this could be coincidence or human error etc.

[@spencersperle8441]

Thanks!

[@brickleyb]

Awesome thorough review!! I am considering the waterdrop G3 or the clearly filtered under sink 3stage. On sale they are close in price. Curious How do these two compare? -flow rate -filter performance -cost for replacement filters

[@boswater6065]

Glad that you liked it! With flow rate and filter performance, we'll be able to answer that once we've re-tested the Clearly Filtered system. But it's definitely much more expensive to maintain than the G3P600.

[@kimberlyvdd]

Under the Waterdrop G3P600 report, it shows the "Total Bacteria Count" is > 1600 cfu/mL which is higher than the EPA limit of 500. Any thoughts on this and if this is important or not? Thanks!

[@boswater6065]

These are bacteria that are everywhere around us and they are not harmful. The number goes up as soon as you take the disinfectant, usually chlorine, out of the water. The EPA limit is to make sure that a water supply is properly disinfected.

[@MrRob111]

Excellent presentation. I was ready to go out and buy the Waterdrop RO system you recommended. But upon researching ETR Laboratories, I discovered that their license was revoked by the state of Massachusetts in 2021 for repeatedly poor testing procedures and improper results. I wonder if BOS was aware of this, and if they have any feedback on this? Reply

[@boswater6065]

Yes, we are aware of this. They are still ISO-certified, and so far and based on the lab reports we've received from them, we don't have any reason not to trust their service. That said, we'll probably use a different lab for the next round of testing which is always a good thing. Of course it would have been ideal to use multiple labs from the beginning, but this is just not possible due to cost restrictions.

[@MrRob111]

@@boswater6065 would you kindly specify what you mean when you say "based on the lab reports we've received from them, we don't have any reason not to trust their service"? It would be very helpful to understand your thinking on this very important issue.

[@boswater6065]

It's that our lab results "make sense" so to speak. So for example, when we tested the old version of the Waterdrop A1 and found high levels of methylene chloride, Derek from Modern Castle here on KZbin had the exact same results but he used a completely different testing service (Tap Score). Another example would be that with our RO systems, we always get the best filtration results including high TDS reduction. The other types of water filters we test usually don't perform as good which makes sense because reverse osmosis is extremely powerful. A final example: We see filters that use KDF filter media (a mixture of copper and zinc) often leach tiny amounts of copper and zinc into our water, whereas filters that only use activated carbon and ion exchange resins don't seem to leach any copper/zinc. That said, you must also not forget that this before vs after testing is not an exact science anyway, so all of this lab testing should be viewed as giving us a general idea for how effective a specific water filter is, but that's really it. If you want more reliable results, you need to focus on NSF certifications.

[@MrRob111]

@@boswater6065 thank you for your very thoughtful answer. That's very helpful.

[@boswater6065]

My pleasure!

[@lizarivera8971]

Did you test Hard water on Water Drop? I have hard water and too much Calcium in the water.

[@boswater6065]

The water we used is classified as very hard (13.5 gpg hardness).

[@EliLazar-i5f]

Great channel! A few questions: 1, Could I ask what systems the staff at BOS uses for themselves? Your video is awesome at giving the objective review, but just curious what the subjective review is. 2, Would you consider doing a review on the iSpring? It is ranked so high by so many people on Amazon I am wondering what your analysis of it would be. 3, For the NSF certifications, do you know if the systems need to pass only once or submit compliance data on a regular interval. I am just wondering if it is more about good engineering design (pass once and forever certified) or about ensuring good manufacturing of the systems (having to recertify at some regular interval).

[@boswater6065]

Thank you! 1. The AquaTru Classic and the Clearly Filtered under sink water filter. 2. Any model in particular? 3. The NSF says that certification involves regular re-testing. I think I even read that they might purchase the product randomly for re-testing. But I'm not sure about the details.

[@EliLazar-i5f]

@@boswater6065 Thank you for the info: Re. 1: Wow, the Clearly Filtered does look impressive, so I understand why you like it. However, they should probably update their lab performance data on the website, which is dated 4/2018 for the under-sink system (going on seven years old). Re. 2: Any iSpring RO system would be good, but the iSpring RCC7AK would be my vote. It has 12k reviews at 4.7 stars, which I believe is the highest-rated system on all of Amazon. However, I know there can be some gaming to get positive reviews on Amazon, so I’m curious about what your in-depth analysis would be. Thanks again for the transparent analysis. I have always thought of Wirecutter as the gold standard for product reviews, but I think your channel is taking it to another level and doing a much better job. Water filtration is just in such a strange spot. You have the big legacy companies like Culligan, who, in my opinion, are way overpriced (they quoted me $2,100 + $150/year + $400/4 years) and stuck on an outdated business model. Then there are big companies like A.O. Smith and Whirlpool, who you are predisposed to trust, but they have terrible customer reviews. Then you have a huge number of small companies you’ve never heard of before, but with great reviews and bold claims. To me, it feels like water filtration systems are going through a market disruption phase, so I think a channel like yours is imperative.

[@boswater6065]

This iSpring model is on our list already, however, I can't make any promises for when we'll review it. Thank you so much for your kind words!

[@MrRob111]

@@boswater6065 may I ask why someone on your staff chose the Clearly Filtered under sink model instead of the Waterdrop G3P600?

[@boswater6065]

@MrRob111 Simply because it's an inline system that doesn't require any drilling through the countertop.

[@jieiku]

In the last 48 hours I have learned a LOT about water filtration and reverse osmosis systems. Some systems use proprietary filters, while other use industry standard size filters. Also if you are going to use a system that has a tank instead of tankless, then a permeate pump can greatly increase the efficiency of the system. Have you considered adding any RO systems that use industry size filters? I would preferably like some that come with the permeate pump.... but my understanding is that pump can be added to most non proprietary systems. One system I would love to see a review of is APEC Water Systems Ultimate RO-PERM because it is easy to get ahold of, I see you did review APEC ROES-50 Essence, so I am assuming results would be similar or better.

[@boswater6065]

Like you said the APEC ROES-50 Essence is a system that we tested and that uses standard-sized filter cartridges. Of course, the benefit with these is that you could switch to other filter elements. However, in that case our lab testing also doesn't apply anymore. Also, even standard-sized filter elements can be shaped differently at their bottom and top so this is something to keep in mind. I've added the APEC RO-PERM to our list.

[@twistedtech361]

Great crash course on RO systems, thanks. How can you raise the alkalinity on tankless systems?

[@boswater6065]

We've never tested this ourselves for how well this works, but you'd need to add the right salts/minerals manually before consumption. If I'm not mistaken, most important are carbonates and bicarbonates.

[@2629derekhale]

Can I use the Ro system for both hot and cold water lines? Do any of these units filter microplastics (PFAS)?

[@boswater6065]

Cold water only. PFAS are pretty easy to remove and they should all remove them. The Waterdrop G3P600 is even certified for removal. Same goes for the Aquasana, GE, and Brondell.

[@noscopeentertainment]

Could you review the Vitev REMIN Ca and REMIN Ph Remineralization Filters? They claim to be far superior to other remineralization filters. I'm curious to see if they actually add a significant amount of minerals to the water.

[@boswater6065]

Which of their RO systems are you using?

[@noscopeentertainment]

@@boswater6065I’m not currently using one of their RO systems. Their reminerlization filter is universal and can be used with any system. I would be using it with an APEC ROES-50 system. They say it works best after the last filtration stage but before the tank.

[@boswater6065]

I see. We might be able to check it but I can't make any promises. I appreciate your input!

[@noscopeentertainment]

@@boswater6065Thank you!

[@aavril9400]

I am trying to find the percentage of lead and copper removal for the Waterdrop, but I can't seem to locate it? I already looked in the google sheet

[@boswater6065]

That's because this water supply doesn't contain any lead. As for copper, reduction was 100%, but the initial copper level was relatively low (0.06 mg/L).

[@core1973]

Do you have more details on the Frizzlife PD600+TAM3? Its mentioned that Lab test results showed harmful chemicals leached by the system. Did you knwo if was from the TAM3 filter or the other filters?

[@boswater6065]

We didn't repeat the lab testing to confirm our findings, so this might be coincidence or something else. But it definitely wasn't from one of our other filters because we installed one system after the other.

[@core1973]

@@boswater6065 Thanks BOS water. What I meant with "other filters" was the two filter inside the unit. But if you perform only one test for unfiltered and filtered water there is no way to know.

[@innercircle7957]

Water Filter Guru found Antimony in the filtered water for the WaterDrop X. Did u find it? did the Waterdrop G3P600 have any?

[@boswater6065]

No, we didn't find it in either of the 2 systems.

[@frv1993]

⁠@@boswater6065was it tested for antimony?

[@boswater6065]

@frv1993 Yes

[@stevenjimenez9407]

Wow great video.

[@jcristina6396]

Hi, thank you so much for your reviews. I purchased the aquasana ro system under the sink, but when I looked at the name under the NSF website, I can’t find it. How do I know it’s certified.thank you.

[@boswater6065]

You're welcome! You can find the links to all NSF certifications in our Google Sheet.

[@terilynn5525]

Can the water drop be connected to the fridge water line?

[@lizardscraps]

I have the same question

[@boswater6065]

Yes, it's possible.

[@ncjeffwilson]

Not sure if I missed it or not but have you reviewed any of the Culligan under sink RO systems (tankless or with tank)? They are pretty expensive compared to others here.

[@boswater6065]

Not yet, no. We might review some in future, but only if they can be DIY-installed and don't require a scheduling a "Free Water Consultation".

[@bodhisoha]

Why did you not test the acquatru undersink ro system since you like the classic countertop system so much?

[@boswater6065]

Great question. There were multiple reasons. One is that for under sink ROs we felt that you have more options compared to countertop ROs. Also, we didn't want this to appear as if we favor AquaTru. We cannot test all the systems we would like to test anyway due to budget restrictions. That said, we will test the AquaTru Under Sink eventually.

[@Itskinghailey]

I’m looking into SimPure Q3 600GPD or waterdrop d6 or G2P600.I bought the g3p600 but unfortunately to tall. I need a compact unit to fit in my cabinet. If you had to pick one which would you choose?

[@boswater6065]

Hm, I really don't know. I did a quick search and it looks like there are no NSF certifications for contaminant reduction for any of them. Also, we haven't lab-tested any of the 3 models nor do we have any hands-on experience. So, I really can't say which one I'd pick. Sorry that I cannot be of more help!

[@jordanlee2645]

Thank you!

[@boswater6065]

You're welcome!

[@kevintruong9506]

Do you plan to have a dedicated review video for the Cloud RO?

[@boswater6065]

Yes!

[@ybechar]

@@boswater6065 Do you have an ETA for it?

[@boswater6065]

You know what, actually it would make sense to review this one since it is so different. Can't give you an ETA but we'll put it higher on our priority list.

[@kevintruong9506]

@ I’m debating on getting the Water Drop X12 or the Cloud RO. My biggest deciding factor is leeching harmful chemicals. I know the X12 doesn’t , but would you know if the Cloud RO leeches harmful chemicals?

[@boswater6065]

Based on our testing, the Cloud RO added a tiny amount of manganese into our water, but at .01 ppm this was the lowest amount possible and below the strictest health guideline we could find. And as always, this might have nothing to do with the Cloud RO itself and could be coincidence or something like that (we didn't repeat the lab testing to confirm). In other words, we're not concerned about the Cloud RO leaching any harmful chemicals. Our main concern was that the unit we tested apparently had issues measuring TDS levels, especially for the remineralized water - compared to our lab data these were way off. And there were a few other things that made the Cloud RO fall behind for us. For more info, you could check our Google Sheet!

[@Mr.C-Mister]

Please test below standing water dispensers. I see there are leaks and loud sounding pumps. I'm wondering if it isn't worth the cost and should purchase over the top only. Also which is easiest to clean and maintain from black mold.

[@boswater6065]

I'm not sure which "below standing water dispensers" you mean.

[@Parmigiano1]

Is it possible to use Waterdrop G3P600 with a 3rd party (three-way) faucet?

[@boswater6065]

It's probably best if you reach out to Waterdrop about this.

[@Parmigiano1]

@@boswater6065 Thanks for the reply. I have found on their website that it is actually possible, might just require some extra quick connectors or adapters.

[@boswater6065]

Thanks for sharing!

[@mobi_one]

Thoughts on the iSpring tankless options? Saw they had one equivalent to the G3P600.

[@boswater6065]

I've checked their tankless under sink ROs and saw that the RO500 is apparently the only one right now that's NSF-certified but for TDS reduction only. The G3P600 has a few additional certifications aside from TDS reduction. I can't really say more than that, since we haven't tested any of the iSpring systems.

[@minihoneybee]

@@boswater6065could you also test isprjng?

[@boswater6065]

@minihoneybee Any system in particular?

[@spencersperle8441]

Why do none of the ro machines remove flouride completely. Suspicious

[@boswater6065]

It's just really difficult to remove I guess. So far, we haven't seen 100% fluoride reduction with any of the water filters we tested.

[@austingarlow5340]

Where can I access the spreadsheet for tankless systems?

[@boswater6065]

All tank-based and tankless systems are combined in one spreadsheet. Or do you mean the spreadsheet for our countertop ROs? I've added it to the description!

[@eagoleye]

The discount code is not working 😢

[@boswater6065]

I just checked and it worked for me.

[@walkinonsunshine4292]

Love this! Living very close to So Cal Dump that is leaking LEACHATE into our ground water. NEED TO KNOW- Which RO system works best at removing LEACHATE??

[@boswater6065]

Hm. Do you have any idea what that leachate actually is?

[@xaxb4178]

I am having issues with my APEC RO tankless bought less than a year from Amazon.

[@boswater6065]

Which unit in particular and what's the issue?

[@mohammedalaskary342]

Great info but you guys didn't include pristine hydro? any reason why

[@boswater6065]

Thank you. I've checked. Is the system really around $2,200 or did I check the wrong one?

[@mohammedalaskary342]

​@@boswater6065yup. I own the travel portable system it's about 1200 but would love to hear you input

[@mohammedalaskary342]

@@boswater6065 yup you're right. one is 1200 - travel portable. which is a stand alone RO system. The one you checked is the undercounter system. I'm personally interested in your thoughts on the cheaper (relatively speaking) travel portable filter but it's your channel :)

[@boswater6065]

@mohammedalaskary342 I'm not sure if we will test these. Unless I'm missing something they seem overly expensive for what you get.

[@mohammedalaskary342]

@@boswater6065 Hello again, yes it is pretty expensive. The drain ratio is 1:1 and it has a an additional 2 filtration layers. We haven't changed the filters for about 4 years and it still tastes better than tap water. Why? because it's expensive and we have to pay extra since we live in canada. I'd like to change the filters this week that's why I came across your video

[@TheAmulet9]

Your code does not get an additional 5% beyond the sale price unfortunately

[@Itsanjan]

One issue is found with my water drop G3 is , after 1 year , the TDS is shooting up to 47-49 even though tap water TDS is 125ppm .. water drop is sending me new system now and I’ll see how that works

[@boswater6065]

Have you replaced the RO membrane yet?

[@Itsanjan]

@@boswater6065 yes, I replaced all the filters. And recorded video sent it to customer service. They sent me a replacement machine day before and my TDs is now back to 6-7. I understand that after 2-3 months it will move to 25, then 35 as we get closer to replacing the filter but since mine was new filter and still was showing 46 TDS I was concerned but email customer service was good to send replacement with 90$ fee as I was out of warranty .. I connect the RO output to the alkaline filter which adds calcium and magnesium .. it would be good if you make a video on the alkaline filter that they sell with water drop and other filters

[@boswater6065]

Thanks for sharing. Noted about their alkaline filter!

[@Itsanjan]

@@boswater6065 sorry, thought I replied. Yes, water drop sent me a new system for limited amount and I used the same filters and TDS came back to 7 so the issue was with the system.

[@heidichiu1281]

Any updates on the WaterDrop A1 and C1H issue?

[@boswater6065]

This will be one of our next videos, but what I can tell you is that Waterdrop has revised both models in order to address the issue. But we didn't get the chance to re-test any of the updated models yet.

[@FTWAlmighty]

I want to get WaterDrop undersink RO. But reading their FAQS page and it says it shouldnt be used with well water. I have a decent pre-filtration system. Water Softener, sediment catch, UV Light, ionizer. The water pressure is 38PSI. But I’m new to all this stuff and just want good water for my family. Thank you.

[@boswater6065]

With all the treatment in place, it sounds like this could work. Maybe contact Waterdrop support - they are usually very helpful.

[@FTWAlmighty]

@@boswater6065 I wound up going with the Aquatru counter top. Wanted to get up and running quicker. Plus, less waste water. What is wasted well use for plants. Don’t want to risk drying our well out. Especially because I just planted 6000sq ft of new grass I already have to water….

[@humannature3916]

Can you test please ecowater, kinetico and culligan back to back?,

[@boswater6065]

Added to our list!

[@humannature3916]

@boswater6065 awesome! Thank you. Can't wait for that test vid!

[@Dark-i7s1b]

Will you be doing tests for under the sink non ro systems?

[@boswater6065]

Yes asap!

[@eslafalbayati6340]

Please do asap it is a wonderful option for renting houses 😊 to access clean water for drinking n cooking as well looking forward to see it Are you having a time schedule to post your videos?*

[@boswater6065]

@eslafalbayati6340 I can't give you an ETA for an under sink filter video. It will take some time tbh.

[@telehetzel]

Have you tested and compared whole house reverse osmosis systems?

[@boswater6065]

No, at some point in future we hope that we will be able to test one of these, but it requires an incredible amount of resources...

[@AM-nd2wq]

What is the difference between G3P600 and G3P800, does G3P800 worth extra $300 cost?

[@boswater6065]

So we haven't tested the G3P800 directly, but the main difference to the G3P600 is that the former is a little faster, produces a little less wastewater, and has an additional filter stage (UV). This might be worth the extra cost for some people. Personally, I think I'd prefer the G3P600.

[@AM-nd2wq]

@@boswater6065 Thank you, looks like G3P600 is a better choice. There are mixed opinions on UV filters, some say it just damages the DNA of bacteria but doesn't kill them, and the effect of these modified bacteria on the human body is not measured/studied.

[@MichelleOlsen-u9n]

@@boswater6065is it worth buying the UV light sterilization to add to the 600? How important? Thank you!!

[@boswater6065]

@MichelleOlsen-u9n Tap water should be microbiologically safe to begin with. I think the only case where it matters is when there's a boil water advisory.

[@ox8785]

Why is ispring never in the tests?

[@boswater6065]

Because we cannot test all the models and for this particular test, the APEC Essence ROES-50 seemed more popular on Amazon at the time we chose the systems we were going to test.

[@ToddParker]

how would any of these compare to hydroviv?

[@boswater6065]

The problem with comparing them to Hydroviv is that, according to Hydroviv, they create a customized filter based on where you live, so a Hydroviv under sink filter would perform differently for different people living in different areas.

[@ToddParker]

@boswater6065 ok. Yet, wouldn't the comparison still be worthwhile? I mean, you just water test it with the others. The others are still from the same faucet, you went out of your way to tell us that.

[@boswater6065]

That's right. But what's the benefit for our viewers if the Hydroviv system you receive uses different filter media than the one we get? You still wouldn't know if your setup is effective.

[@ToddParker]

@boswater6065 seeing how accurate the filtering is. If their process and tech is sound. That is what you do for everyone else. Do you resell these other companies? They make a claim, test the claim. Every filter may work differently based on location and water supply. So will hydroviv. If you get good results, then maybe someone will have confidence. Reality is that some of the filters you show as good may not work well for someone else, test results may differ right? Point is that it is normal. The only thing is that hydroviv makes a claim, so test against others to see if their claim is true. Consumers see these water test results claims from multiple companies and they vary widely so it is like the wildwest, we want clean water but there isn't real confidence.

[@boswater6065]

Thanks for your input. We'll discuss this internally!

[@ThePerfectWater]

The testing process does not do justice to the Home Master HydroPerfection’s patented remineralization system, because it is a 2-pass system, and by closing off the tank, the tester eliminates the first pass. It's also important to note that it is this first pass that remineralizes the most, since at this point the water is passing through the Artesian remineralization filter at a very slow rate, providing the excellent media contact time required for proper remineralization. Additionally, the video would be improved if they took the water sample for taste, odor and purity testing in a manner that replicates normal use. I.e., just walk up to the sink and draw a glass of water, without first standing around flushing it each time, which takes TDS creep out of the equation. To be fair, the presenter does mention this, but there is an opportunity to describe to the viewer, just how TDS Creep degrades water quality, and which systems are impacted most.

[@boswater6065]

Thanks for sharing. We've actually included in our Google Sheet what you said about us eliminating the first pass. So basically you're saying that if we'd re-test your system for its remineralization capabilities using both first and second pass, that results would be way better than they were with just one pass? If so, then we'd happily test for that. As for taste and odor testing, we did test that during normal everyday use. And for purity testing, we had to come up with a standardized testing procedure that wouldn't be completely random. Otherwise, a comparison between the different systems would have been impossible. Also, how do you define "normal use"? I don't think it's that easy.

[@boswater6065]

One thing I totally forgot in my first reply is this: If we hadn't shut off the tanks of the tank-based ROs during sampling, our contaminant reduction rates might have been less accurate - due to what we said in the video about testing the same "batch of water". Because making a before and after comparison of the water only makes sense, if we test water of the same quality. So this ruled out just taken a random filtered water sample during everyday use. Hope this makes sense.

[@james872hotmailcom]

Does anyone know any credible Lab Testing companies / facilities for water in Australia?

[@james872hotmailcom]

A Waterlogix equivalent

[@eslafalbayati6340]

I didn't see that you test these OR system for xylin how come!!

[@boswater6065]

Do you mean xylenes? We did test for that. Check the lab reports.

[@eslafalbayati6340]

Oh sorry, i meant xylenes, but I still can't see it in the filtration report

[@boswater6065]

They are listed at the very end of each report ("o-Xylene" and "m+p Xylenes").

[@Fadesign100]

What the absolute best non under teh counter systems ... I rent but still require the absolute best for purity.

[@boswater6065]

You can check our big countertop RO comparison video if you want!

[@Fadesign100]

@@boswater6065 Link please

[@boswater6065]

kzbin.info/www/bejne/Y4iZZp2BrMh4aNk

[@mrnoodle7390]

I don’t understand why a 75% (or around that) removal of nitrate is considered "good." Nitrate is harmful, even poisonous, so I would expect reverse osmosis to be much more effective at removing it. Shouldn't the removal rate be closer to 90% or higher, like how most other ro are removed at 100%?

[@boswater6065]

That is a minimum reduction.

[@mrnoodle7390]

@@boswater6065 what is that mean compare to 100% filtration rate such as the Home Master? I currently have a Home Master Hyroperfection and looking to switch over the tankless because tank pressure goes lower as time goes by. And did your test tested trace of antimony (on X12) such as this you tuber detected? kzbin.info/www/bejne/nZrIiKGanqqahqc

[@boswater6065]

This is a bit hard to explain but let me try. So, in some cases the lab could detect a certain contaminant remaining in the water, such as nitrate, but it couldn't tell how much was left exactly because the remaining concentration was so low. So all the lab could say is that there was less than 0.5 mg/L of nitrate remaining in the water. So in order to calculate a reduction rate we need to compare that to the initial nitrate level in the tap water. For the Aquasana SmartFlow, for example, that was 2.12 mg/L. So a reduction of nitrate from 2.12 mg/L to less than 0.5 mg/L means a minimum reduction rate of 76%. However, because we don't really know how much nitrate was remaining in the filtered water, the actual reduction rate might have been 90% or even 95%, or only 80%. Compared to that, 100% reduction means that the lab couldn't detect any nitrate remaining in the water. That said, please remember that all of this lab testing is not an exact science - far from it. It's supposed to give us a general idea about how effective a water filter might be. As for your other question, yes, our testing includes antimony but we didn't find it for the X12.

[@mrnoodle7390]

Thank you for your detail explanation! And good to know that you tested negative on antimony. I went ahead bought X12!

[@boswater6065]

You're welcome!

[@josephcullen2512]

Hmmm okay

[@mostaanroya]

I don’t get it all the tubing and the tank is plastic!!!!!!

[@RogerRamjetLips]

which ones are not made in china?

[@boswater6065]

We only check if a system is made in USA or not. The Home Master is almost 100% made in USA; the US Water Systems All American RO is 100% made in USA.

[@jed1947]

So you get paid using the affiliate links? Under sink systems use proprietary filters than cost 5X as much or more than tank based which use generic filters.

[@boswater6065]

Yes, this is the only way we can afford all of the lab testing we do. Proprietary filters are more costly, yes, but not all of them are x5 more expensive - it depends on the system you choose obviously.

[@Sargaxon]

they are doing a comparison of water filtration systems, but are sponsored by Waterdrop and have a sales code lol I wasted my 20 minutes of my life, take this comparison with a grain of salt

[@boswater6065]

Yes, we reached out to all of the companies and asked for free product samples in order to reduce our costs, but this video was not sponsored by Waterdrop. We fought really hard with Waterdrop in order to get this discount code. Please stop spreading false information.

[@Sargaxon]

​@@boswater6065 I highly doubt this, you probably get a percentage per sale or for each discount code used. Stop lying to your audience, anyone with 2 cells in their brain can see through this. People, do your own research. I will not sponsor anyone, but after comparing several manufacturers, I must say that Waterdrop is not the best by a margin, there are better and cheaper options.

[@boswater6065]

Of course we are getting a percentage per sale. We are very open about this. This does not have anything to do with using our discount code or not but with using our affiliate links. But each link for each product is an affiliate link. This is the only way we can afford to make these videos, because the type of lab testing we do is extremely expensive. We also know that this isn't ideal and this is why we publish everything including lab reports so that people can make their own comparison in case they don't trust us.

[@cw8958]

This video doesn't address the one reason all of my clients turn to RO systems: fluoride. You are all being dosed with a chemical byproduct of the fertilizer industry that only contains 2-4% of actual fluoride. The rest is mystery powder, fun!

[@boswater6065]

We do cover fluoride reduction.

[@cw8958]

@@boswater6065 timestamp?

[@caliebrown8616]

so basically there are no systems than can get rid of 99% of fluoride

[@boswater6065]

We don't really know. 99% is extremely high, but around 95% should be doable based on the performance data sheets.

[@cw8958]

Thumbs down!!! If you aren't concerned with fluoride, you don't need an RO system. Period. There are tons of much cheaper water filter systems that produce ZERO waste water, filter everything this video is concerned with, and are all tankless. The fact that they don't even mention this shows how little information you're actually receiving about these products.

[@svangiesen]

Cut to the chase…..

[@InimitaPaul]

Julianne Moore gave up on Hollywood!

[@vancetang1]

Hi. I tried to use your X12BOS code together with their current promotion using the X12 code and it won’t let me use both. Any suggestions?

[@vancetang1]

This is the response I got from their customer service when asking how I use your extra discount… Hi ​ Thank you for your interest in our X Series filtration system! Please note that only one coupon code can be applied per order. If you have any further questions or need assistance, feel free to reach out. Wishing you a wonderful day! Kind regards, Édgar Miranda Customer Service Rep

[@AcDcHomeGenerators]

The 5% off doesn’t apply to my order too.

[@boswater6065]

@vancetang1 You only need our code, not both. It will give you the discount which the normal X12 code provides and then an additional 5% off. However, the code isn't working right now and I've asked Waterdrop to fix this asap.

[@boswater6065]

@AcDcHomeGenerators You are right. Thanks for pointing this out. I've reached out to them about this.