Hydroponic Nutrients TDS, PPMs and EC Explained!

Understand the relationship between electrical conductance / conductivity (EC) and TDS meters (PPMs) when measuring the strength of your hydroponics nutrient solution. (Respect and thanks to CGP Grey for the inspiration to create this video!)

[@bogtrotter10]

This gave me anxiety

[@ludwigvanzappa9548]

Good advice ,smoke that doobie AFTER this video if you want to understand or set the speed at 0.5 .

[@RaymondJacobVEVO]

I speed up his videos ; )

[@crownedncurls2764]

Damn why he speaking in fast forward?

[@shravyamarketingpvt.ltd.3045]

0.75 actually worked :)

[@DylanDaPickle]

I don't want any semen in my water

[@mastera4826]

Very helpful and to the point. The explanation isn't too fast. No matter the speed you'll have to replay if you want to really get something. Love the splitting hares!

[@heckyes]

Can't wait for the day there is a tri-meter for Aquaponics. Being able to easily measure ammonia / nitrite / nitrates would be so awesome.

[@gillenzfluff8380]

If the plants are pale green not enough ammonia and nitrates if the plants look too deep green run the water through some charcoal.

[@ljens8485]

As a layman I found this informative. I appreciated the visuals as well. This was beneficial to me, thank you.

[@hakimahhassan3042]

I found this useful. I have watched other videos prior to watching this.

[@electronron1]

I've been watching your videos for a while now and I have to say that I like your style of presentation. I've watched videos where the presenter took so long to get to the point I moved on to another video. I did a lot of research and decided I would get an EC meter over a TDS meter simply because it just makes more sense, besides I can always pick one of the multipliers and do the math myself if I want PPM. P.S. I subscribed on the first video I stumbled upon.

[@Just4Growers]

Thank you so much Ron, I really appreciate the feedback, positivity and - last but certainly not least - your subscription! Thanks again.

[@anujchandkapoor]

I loved this video so much, I watch it whenever I am dissolving my nutrients, I mean my plant nutrients.

[@Diosesdepapel]

Boy i end up as smart as i was when i took my first computer lesson class , WTF ... i have to watch it all over again. Tks for sharing

[@fnrome779]

Been looking 20 minutes for this information than remembered im subscribed to the genius 😁🙏

[@1997wolverine]

As most people I can probably speak fast about subjects that are familiar to me, but if I am doing it with somone who is not it all sounds like Greek. luckily i have some experience so it was a little easier to follow but still rushed. However, a very informative video that I would love to explore and archive again at a slightly slower pace. Peace to you.

[@Just4Growers]

1997wolverine Thanks Wolverine. I received quite a bit of criticism on the pace of this video-it was, as you say, too fast for someone who is (likely) unfamiliar with the subject territory. I guess I had a LOT to say but I didn't want to go onnnnn and onnnn! :) It's definitely a topic that I intend to return to though, so I'll take a chill pill next time for sure! Thanks for stopping by. Happy growing, Everest.

[@jus4funtim]

A little tip for anyone having trouble keeping up with him. Click on the gear icon then Click on Speed then Click on .5 Click on the gear to close the drop down box and then Click on the play icon. If you Click on the .25 speed you wont hear any sound.

[@Just4Growers]

***** Thanks for sharing! I learnt something new today :)

[@dawie4853]

+jus4funtim it works soooo well, thanks. More my speed ;)

[@Blauschimmer]

Accidentally had this vid going at 1.5x 🤪 ... But you are so we'll pronounced and articulated, that I was almost able to follow it all ... Almost. Also thank you for the enormous amount of concise information!

[@wsochak1010]

Great videos Everest. Been growing for many moons and still enjoying grow videos that are educational and professional. Thanks.

[@Just4Growers]

I truly appreciate you saying that Wsochak! Thank you. I try to make vids that are beginner-friendly but still with enough content to interest more experienced growers. So much planned for the coming year! :)

[@jakebrooks1985]

so basically go by ec it's more accurate?

[@tacosalad4716]

You all complaining about talking speed? Instead of trying to get the channel to change to suit you, why not just watch the video again?? I've seen several of the channels videos multiple times and then ask questions to gain a better understanding. And I still don't get all of it. This is one of the two best and most informative channels on KZbin for growing and product variety and reviews. It was hard for me to keep up the first time I watched one of his vids, but if I had quit at the beginning I wouldn't have learned anything.

[@blipsandchitz194]

Everest, Love your videos man and have ask a few questions since finding them. But I have another for you! In DWC, I am using a small 5 gallon tote that holds to my lever 3 gallons of water. I am currently trying to find my plants feeding EC by slowly raising the base of my EC to see where it will plateau (in-taking water, nutrients and dropping) all at the same rate (General Hydroponics Flora Series). Now for the question.. How much is TOO much of a concentrated solution to pre-mix to add to my reservoir, which I might add there is no roots exposed as top / netpot are pulled out and set in an empty tote while I have a small recirc pump that I drop into the bucket for mixing. My idea or what I have been doing the past few days is mix up 1/2 cup RO water, add my Micro at 2 parts, stir very well. Grow at 3 parts / stir and then my 1 part bloom. I have doubled this for a larger mixture when needed. Do you think I would run into a nute lockout issue with this method? I am trying to raise my EC in small increments and actually using PPM @ .5 (so increments of say 25-50).

[@skiidesu9214]

FAK MAN, NOW I AM MORE CONFUSED, THANK YOU!

[@nicoledidi9571]

😂😂

[@mrmetrontech77]

So confused. Why do ppl waste time don't this?

[@davidlovell7724]

Hi am in the uk and use a blue lab truncheon, and I like you said only do my EC readings by my canna nutrient chart, is this wrong? or am I fine

[@TanakaDaRocka]

First video I've seen from this channel. Will be the last time I watch a video from this channel. Might as well watch reruns of a micro machine commercial.

[@Just4Growers]

Noooooooo! I've switched up my meds since then! I hope you return.

[@thegrowmonster1953]

He’ll be back.

[@xxAutoFlowxx]

I think your vids are awesome EF. Watching some of these other vids w ppl who are high and slow is very frustrating. I live in NYC, speed it up even further. It's a sin you only have 55 subs.

[@jaysvlog9803]

Everest Fernandez just cannabis... I can’t keep up either but your giving a novel in 4 minutes that’s why there’s a rewind button 🤟

[@gillenzfluff8380]

@@Just4Growers Don't worry if slow people can't keep up.

[@jasonbigg8341]

Superb again. The pace of your vids is great, no time wasted. Thanks mate

[@mikevansimpsen8541]

Hi, what EC is recommended for tomatoes, cumcumbers, aubergines etc? Thanks

[@iqbalmemon9630]

Loved it. Very well understood. only had to cut down the speed to .75. Thanks a lot.

[@SimRacingVeteran]

Finally someone explained EC for me to understand.

[@Just4Growers]

You’re welcome!

[@MArifinDobson]

Awesome man, cool explanation, now I got it

[@MrJente]

hi Everest what doe you think about Torus Hydro ph control ?

[@elopez5278]

Fast but explained really well thanks because I'm puerto rican and when I whach spanish videos they talk about ec and when I see english videos they talk about ppm i understand now..

[@jameschute9522]

I have an apera ec20 , what would be my conversion for ppm?

[@Deonmarx]

Say I want to give a feeding of 200ppm but my source water is already 150ppm... Should I mix my nutes then till I reach a ppm of 350?

[@Just4Growers]

Nutrient strength explained like never before!

[@YaMoonSun]

Everest Fernandez How much caffeine did it take to achieve that level of hyper?

[@adrianrainbow4106]

YaMoonSun 600ppm.

[@isyourweedbetter8109]

+Adrian Rainbow i think 2,000ppm

[@enriquegutierrez7965]

i finally understeand the difference, thank you so much!

[@Tonkyhonkyman]

I feel like I just watched a micro machines commercial from the 80s. Fast. Subscribing because I’ve obviously got ALOT to learn ha.

[@Just4Growers]

Thank you SR. I appreciate EACH and EVERY subscriber. Welcome.

[@ryanlloyd7459]

That's some good Peruvian marching powder he's on

[@xXCaHeTeLxX]

Black maca? 😅

[@UKDJMessy]

There's a lot of info to take in here, it really isn't helpful that the guy presenting it seems to have ingested a large quantity of amphetamine shortly prior to making the video. Unless your camera has a 256MB memory card, I really don't think it was necessary to rush through it at such speed. I watched the video wanting to understand this stuff, it left me thinking "What?"

[@Just4Growers]

Thanks DJ Messy. Lol. My camera has two 64GB memory cards (now I'm showing off) but I just can't stand long waffley videos so I tune them to suit my own attention deficit disorder-sorry. I really should make a (slower) follow-up to this video as you're not the first to convey such sentiments :) Thanks again for the feedback. Peace and happy growing, Everest.

[@jamesdonnelly8888]

@@Just4Growers If you hadn't gone at that speed, you'd have been on my default 2x playback speed. Flipside is folks can slow you down if they want :) But yeah, I agree, fun to watch but a little slower would be better. But I still appreciate the video very much, thanks, I learned a lot (in a short time)

[@pseudonymph8482]

I sped it up so I appreciate the speed of data and his blood stream should that be the case.

[@tv76g]

So what should your TDS meter read when your plant is completely flushed? Hope you can help? Thanks

[@Just4Growers]

+tv76g Hi tv76g-t's more about your growing media than your plant. When your growing media (presuming it is inert) is completely flushed it will read the same TDS as the water you use to flush it. This is easier with some media (e.g. rockwool) than others (coco) - look for a low CEC (cation exchange capacity). I'm going to make a video dedicated to flushing (been promising it for a while now!) so look out for that soon.

[@rustysmith3565]

You should be an auctioneer cos they talk at three times normal speed .

[@jmolinx]

would you happen to know if it is possible to calculate certain macro and micro nutrients such as potasium, nitrogen, iron with just an ec meter?

[@Just4Growers]

Hi Jonathan. Thanks for your question. I'm not aware of any method using just a regular EC meter because it measures overall conductivity created by all the solutes. I am aware of meters that allow you to measure specific ions (e.g. CleanGrow dot com) so they may be worth checking out.

[@mahesh-2845]

You are legend bro. I understand everything

[@milanchhatralia3758]

okay... your video will be much helpful in my DIY project...But which multiplayer should I use to calculate the TDS of drinking? water

[@Just4Growers]

+Milan chhatralia well, I usually go by x0.5 - it's not so much about what you're measuring, just to know which multiplier you are using especially when it comes to interpreting feedcharts or using calibration fluids stated in PPMs.

[@milanchhatralia3758]

+Everest Fernandez (Just4Growers) Thanks a lot for your advice.

[@SPCkeith]

I'm still confused because I found a thing online that called for so and so ec and so and so ppm I have been using grow more sea grow for my soil plants but want to grow herbs and spices in hydro as well as stray berries and maybe a cherry bush sooo do I add any npk ratio nutes until I get to ppm I want once I hit that ppm what if my ec isn't right? How's that adjusted From what I gather npk ratios go out the winder and all you want is ec or ppm reading right?

[@Just4Growers]

SPCkeith Hey SPCkeith. Thanks for your question. Start with a premium hydroponic nutrient (single part, grow A & B, bloom A &B, or three-part) and follow directions for vegetative, transition, and bloom that you'll see on the label. That way you don't have to concern yourself with the NPK as the nutrient blenders have largely done that work for you. Your responsibility, as you correctly determine, is the CONCENTRATION and pH of the nutrient solution you mix up. The more nutrient product you add, the higher the PPMs (Total dissolved solids (TDS)) or milisiemens (Electrical Conductivity (EC)). It's a bit like making a tropical fruit cordial drink. You can add a little for a light drink or a lot, for a sweet syrupy drink! Still the same tropical fruit cordial with the same blend of pineapple, peach and orange-just at different concentrations! :)

[@SPCkeith]

Everest Fernandez awesome thank you One more question if I may I know ph is number one but some of the charts I found listed differing ec for every plants but some plants had the same ppm needs but differant ec needs is ec just a bit more standard formulation? And ppm is really not as critical? If I'm following right? I'm looking to do one of them vertical hydro set up this year (like the rain tower or I think that's what it was) I'm wanting to do lettuce over the winter and then once the shipping opens for strawberries currently I have sea grow 16-16-16 and the 4-26-26 these are water soluble and from what I understand are ok for hydro use. I like to go as organic as I can but simple too With soil I use root riot cubes to start and then plant in black gold moving to dr earths pot of gold soil when the plants are slightly older and then I just water in half tsp per gallon of filtered water of the sea grow Can hydro be that simple and do you know any good products you can recommend? Thanks

[@Just4Growers]

SPCkeith Hey SPCKeith-PPMs, EC-these are two leaves on the same tree my friend. EC is a measure of electrical conductivity-typically measured in microsiemens per cm, sometimes written as µS/cm. TDS is a measure of the total dissolved solids, typically expressed as PPMs. To measure EC we use an EC meter-this passes a small amount of electricity between to electrodes and measures how much gets through. This is interesting to hydroponic growers because the more concentrated the nutrient solution, the better it conducts electricity. Now, to accurately measure PPMs you would need to evaporate all the water in your nutrient solution and weigh the solid residue. This, obviously is not practical for most folks-so we use a TDS meter. What is a TDS meter? It's an EC meter! Yes-the two are essentially the same thing! All your TDS meter is doing is measuring the EC (in microsiemens/cm) and using this to guess the PPMs. It does this using a conversion factor. Different minerals in solution confer different levels of conductivity so it can only guess. Normally I go by x 0.5-that is, 1000 microsiemens is equal to 500 PPMs. Hydroponics is simple. Begin with the purest water you can, invest in some good quality liquid hydroponic nutrients and monitor your growing environment (min max temperatures and relative humidity) and you're off to a great start!

[@SPCkeith]

Everest Fernandez gotcha between that and some other stuff I was reading makes sense now. Why do these things have to be so confusing haha soil growing has been my thing all my life but it'd time to learn new stuff Now when it come to nutes I'm looking at the maxi line from gh figure 3 parts how hard can it be or 2 parts minus the cool bloom are there any other good nutes like this? I currently use sea grow for my soil plants the 16-16-16 and the 4-26-26 any idea if those will work in hydro?

[@Just4Growers]

SPCkeith I recommend choosing a nutrient product that's designed specifically for hydroponic applications so that it has the right balance of nutrients (especially calcium and magnesium). The three part flora series by General Hydroponics is a mainstay of my hydroponic garden-works great, easy to use, versatile, pH stable. Go for it!

[@idries777]

I use bluelab truncheon , | understand that in blulab truncheon we have ec .2 to.3.6 ms and NACL conversion factor tds 500 ppm,which is= ms x1000 x .5 and natural water conversion factor 700 ppm which is = ms x 1000x .7. when i read in fertilizer 4 18 38 , conductivity 1500 ppm , is that nacl or natural water conversion factor? thanks

[@danfox3301]

Bluelab's truncheon (great piece of kit!) actually shows EC, x0.5 and x0.7 scales.

[@HaQDang]

+Dan Fox Yup I have one and they come pre-calibrated. I played with it last night checking the PPM on my tap water vs purified water. Tap water was 260-270 and purified was 0 PPM. Pretty cool stuff.

[@bbab9051]

which one should I buy please

[@Meleeman011]

getting a tds sensor because they're more availible than ec meters, i'll run the conversion factor through the arduino nano if i can find teh specifications of the tds meter, thank you for this

[@stallonegardner1368]

Nice video. Question. What is the ideal ppm reading of my water before adding the nutrients?

[@Just4Growers]

Thanks Stallone. Zero is ideal. 0 ppms. Reverse osmosis is the way forward.

[@billclark8241]

Everest Fernandez If you can't use a distiller....

[@mr.m.o.g.o.m.]

YOUI REMIND ME OF A PROFESSOR TALKING ABOIUT THE A-a gradient and its affect after ARDS. Sure, boss, whatever you say.

[@davidlovell7724]

oh forgot were I live its hard water and my PH has always been spot on every time I check?

[@michaelhansen3126]

So my EC meter shows me uS (micro-siemens) When i look at a guide it will say that a certain crop needs EC 2.0. When i measure my tab water it is 1000uS or EC 1.0 Do i deduct the 1.0 and then add 2.0 worth of nutes giving me a total of 3.0 or do i only add 1.0 worth of nutes giving me a total of 2.0??? I hope im understanding everything. Im currently growing som chilis and my meter shows 1700uS which I figure is EC 1.7 and so far they looks strong and healthy.

[@Just4Growers]

Hey Michael. 2000 uS (or 2.0 mS) is your crop's limit. Don't go above it. You have very hard water. Invest in a water softener for your home (inexpensive) and a reverse osmosis water purifier for your grow. You're right 1.7 milisiemens (your EC meter's reading) is equivalent to 1700 microsiemens.

[@michaelhansen3126]

Everest Fernandez Thanks for your reply. I'm happy that i understand my readings correct. And i will stay below the EC limit. Yeah the water is VERY hard, but 100% chlorine free and super tasty. I will look into some RO and water softener (might be insanely expensive here though.)

[@Just4Growers]

+Michael Hansen whereabouts in the world are you?

[@michaelhansen3126]

Copenhagen, Denmark

[@Just4Growers]

Michael Hansen I am sure you can find a European-based supplier who can mail you a reverse osmosis filter for a reasonable price-but if you help then just send me a message as I know a few folks who'd be happy to help you.

[@NBAXXX]

by using the example you made using the 0.5 NaCI conversion factor, if you were to get that reading from a solution, will it make that calculation to 300ppm automatically or does every reading taken need to be multiplied by the conversion factor (0.5) to determine the real ppm for that meter? So for example, If you were to get a reading of 1000 PPM on a regular TDS meter using the 0.5 conversion factor, is that the final reading or does that need to be multiplied by 0.5 to get the reading of 500ppm? What's the actual reading of the solution? 1000 or 500?

[@Just4Growers]

+NBAXXX Hi NBAXXX thank you for your question. To take your example, if you use a TDS meter to measure the PPMs of your nutrient solution and it says 1000 PPMs then stop right there. 1000 PPMs is your reading. You don't need to multiply it by anything. But here's the thing---your TDS meter isn't actually measuring the concentration of mineral solutes in your nutrient solution. (The only scientific way of doing that would be to evaporate away the water in your nutrient solution and measure what was left as a solid residue. Not very practical!) Your TDS meter is actually measuring electrical conductivity. The more electricity your nutrient solution conducts, the more minerals are dissolved in it. Electrical conductivity is measured in Siemens, not PPMs--so the "conversion factor" I talk about is a way of converting the "real" measurement of electrical conductivity into the reading you see on your TDS meter. The X 0.5 conversion factor works like this. Your 1000 PPM reading was the result of this sum: Electrical conductivity (in microsiemens) X 0.5 = 1000 We can rearrange this equation to determine the original electrical conductivity reading: Electrical conductivity = 1000 / 0.5 So our EC was 2000 microsiemens Or 2.0 milisiemens Growers in Europe, Australia and New Zealand think in these native terms of EC whereas most growers in North America think in terms of PPMs. My advice? Train yourself to think about your nutrient solution conductivity in milisiemens or microsiemens rather than an inferred concentration in PPMs as this is what your "TDS" meter is actually reading. Then no conversion factors are required. I hope this helps and clarifies! Thanks for watching.

[@NBAXXX]

+Everest Fernandez (Just4Growers) +Everest Fernandez (Just4Growers) Thanks for breaking that down. That was very helpful and makes more sense now. Just a couple of more questions. If you're using a TDS meter and received a reading of 975 ppm, is that considered to be 1.9 milisiemens or 2.0 milisiemens seeing as that reading falls between 1.9 and 2.0. Am I wrong to say that it doesn't matter which reading you choose because it's not a precise way of measuring to begin with. Also, I see some people using a TDS meter in the run off of their organic soil mediums. Is this pointless? It seems the ppms can drastically fluctuate depending on how much runoff you choose to test. A 100ml runoff could read 400ppm but a 500ml runoff of water could read at 800ppm. Which reading is the correct reflection of your soil's ppm? Is an EC meter more suited for an organic soil medium or does it make no difference?

[@NBAXXX]

+Everest Fernandez (Just4Growers) No one seems to know the answers to this. Do you have any idea?

[@Just4Growers]

+NBAXXX Hi NBAXXX, sorry I just saw your previous message. Organic potting mixes have an EC, just as a nutrient solution does. You can buy specialist soil EC meters or you can mix some potting mix with some distilled or RO water to create a slurry and test that. You should test your run off after 25 - 30 percent of the volume of your feed solution has come out of the bottom of the pot. At first the EC will be higher (especially if you let the potting mix dry out a bit) but it should gradually come down as more run-off passes through the media. Testing the EC of your run-off is always a good idea, no matter what growing media you are using.

[@NBAXXX]

That's okay, thank you for explaining that. I found it difficult to find a straight answer on forums. I guess the approach to EC readings and feeding different plant genera is somewhat a trial and error process unless there is a EC/PPM chart that i'm unaware of available for each vegetable.

[@jordandavies8718]

I just bought an EC pen and it’s measuring “1486” EC. Assuming this is 1.4?

[@Just4Growers]

JORDAN DAVIES Yes amigo, your EC meter is displaying its reading in microsiemens: 1486 microsiemens = 1.486 milisiemens.

[@LisaWebster]

Do you have a video showing the actual process of how to check the nutrient solution?

[@Just4Growers]

Lisa Webster Hi Lisa. I have a video that shows me mixing up the nutrients, and another where I top up the reservoirs and change them out. But I definitely could do with making a video on nutrient solution maintenance and will hop right to it! :)

[@xxAutoFlowxx]

One thing I was looking for that you didn't explain is how do I change the ppm. If I'm in Veg, the suggested is 8-900. How do I get to that number?

[@NCRealEstate919]

Richondo Fabiano By adding or subtracting nutrients...

[@eugeniahobbs41]

Some growers might be confused with EC reading and measured concentration being dependent on the ionic nature of each constituent. For example nacl is a good conductor where sugar solution doesn't conduct as well in equivalent molar concentrations. If you accurately measure your nutrients and carefully adjust your pH I believe measuring EC or PPM will serve as a guideline. Better still, a accurately prepare your "standard nutrient solution", measure that EC or PPM, as you prefer, then use that reading for future measurements. There is no real substitute for accuracy when using powerful nutrients with your grow.

[@xkguy]

Highly concentrated information...good!

[@thayanemelo9983]

Helllo, good afternoon!! Can I use this equipments to measure a home made fertiliser? I love your job! Class!

[@YKChau888]

Great video, I have a question, if I test a water sample with different PPM conversion tds, is the EC should be same but the PPM result vary?(If they can display both EC and PPM)

[@williamr-iy1td]

i grow corn , can't talk to plants .. just goes in one ear and out the other

[@gillenzfluff8380]

Lol.

[@NoFear4XJs]

Anyone know if you could measure the Chlorine levels or at least meter them using a TDS meter ? I bought one of the Chlorine test meters from ebay :/ www.ebay.ca/itm/pH-CL2-Chlorine-Level-Meter-TDS-Water-Quality-Tester-Monitor-frSwimming-pool-spa-/311347766798?pt=LH_DefaultDomain_0&hash=item487dc5e60e AND when I put some pink salt into the glass of water the chorine reading shot waaay up... Of course the TDS meter reading also went from 15 ppm to 221 ppm. The PH reading appeared good, I compared it to my Milwaukee PH meter and it was within 0.1 of the Milwaukee reading so I call that a passing grade. I`m stumped, ether the Chlorine meter is crap or all chlorine testing kits do the same if you add pink salt...???

[@Just4Growers]

NoFear4XJs Hey NoFear. Thanks for your question. A TDS meter does not measure chlorine levels. It will measure chlorides such as sodium chloride but that's a totally different thing. A TDS meter is just a conductivity meter with some onboard software to estimate / infer the total amount of dissolved salts. As such, your TDS meter will only change when you add solutes that impact the conductivity of the water, which most salts do. If that helped please consider subbing my channel! Thanks :)

[@beafsoupream532]

Mr. Everest!! I love the speed of your video! A lot of us do! I hope most, so you can keep it up!! On to my question...it may be silly, but I want to make sure. You suggest going with an EC meter correct? Seems like there's too much room for error with the USA way...foolishly may I add

[@Just4Growers]

EC (milisiemens) is the way to go amigo. Just like Celsius, Kilopascals and Kilometers. :)

[@BruvaPlague]

👍🏻 well explained.

[@mathewbardsley1258]

Impressive

[@jameskeys783]

how do u adjust it, correct it

[@KennethElstonBAK]

That was clear as mud to me!!!

[@Just4Growers]

Kenneth Elston Sorry Kenneth-you're certainly not the first to convey similar sentiments. I think I tried to pack in too much info into too short a time. The strength of a nutrient solution is physically based on the amount of minerals dissolved in it. However, I was trying to say that your TDS meter (what we use to measure nutrient solution strength) is really an electrical conductivity meter! It's just a bit of software inside that takes the nutrient solution's electrical conductivity and calculates (or rather estimates) your total dissolved solids (in PPMS or parts per million). Different TDS meters make the conversion between electrical conductivity (in milisiemens) to TDS (in PPMs) using different conversion factors-so it's important to know which conversion factor your meter (or calibration fluid) is using. You can forget all about this if you choose to stick with EC like the Europeans do-like the metric system, it makes far, far more sense! :) Still clear as mud? :)

[@youtubelover2327]

you made me so confusede right now :O

[@Just4Growers]

+Happy Life That's NOT what I wanted Happy Life! Please hit me up with any questions. Happy to help.

[@gillenzfluff8380]

I don't see the point of the ec meter the different shades of green tell me how much urine and ash I need to mix with water to feed my plants.

[@joshuaeagan6012]

Great video. I learned a lot.

[@Just4Growers]

Josh E Thanks Josh E. Please sub the channel for regular, educational videos! Thanks for the positive feedback. Much appreciated.

[@timmyboyhiho7754]

Great video dude , enjoyed as hell. Great speech speed and presentation :D. Literally was smiling the whole video. Usually i NEVER comment but for this one i even made an acc lol. dont mind others about speech speed cuz people who knew what they were lookibg for understood everything pretty well for sure. Keep it up! going to check your videos daily. peace

[@Just4Growers]

+Timmyboy Hiho Thanks so much Timmyboy! I hope you are subbed as you'll be automatically informed of all my uploads as and when they arrive. Thanks for sharing the smiles!

[@Just4Growers]

Mr Mister You just ruthlessly killed my buzz ... man.

[@Matentupe808]

Finally it is explained. Btw - American here and I am going EC. Cheers!

[@Just4Growers]

Awesome. One grower converted to EC. Just 300 million more to go. :)

[@coatingsplatingsjas1powder557]

Your awesome

[@mohsenaghdam3136]

Dear everest I can't understand when we mix nutritions together how we calculate Ms to PPM in mixed nutrition we have different types of conversion factors 🙈🙄🤔🤔😣 can you learn us the easy way

[@BsmLy]

If Tds says 1200، what is that in ppm ?

[@BsmLy]

The tds device says it’s up to usa epa !

[@devbachu7072]

can I just test the pH an adjust the ph

[@NCRealEstate919]

dev bachu Yeah but you have to test the pH after the nutrients are in. If your PPM/EC is too high you'll have to add more nutrient free water and/or start over again if your pot/bucket is already to its limit with the amount of water it can hold...even if the pH is correct.

[@gianlucasiragusa2203]

Bloody hell what a speed

[@gianlucasiragusa2203]

Very interesting by the way

[@PeteR-gn5ep]

Thanks for all your great videos! I'm a complete beginner when it comes to growing so my question might be very stupid: is there another video that explains what desirable ppm levels are for given vegtables?

[@JSnyder49428]

Well that was a really fast and complicated way to explain the metric system and converting units. But wheres the info on any of the content mentioned in the title?

[@Just4Growers]

Jordan Snyder hey Jordan, if you have any questions on TDS / PPM or EC (and conversion factors) that I didn’t cover in the video then please feel free to ask amigo. Peace.

[@slyplaymike1]

Thanks my head just exploded

[@TheSkullman721]

You have the best and most accurate information I've ever heard, and probably the best on the internet. Thanks!

[@Just4Growers]

THANKS Curt! :) I do my best :)

[@alwaysadventurous7905]

" "brand name here" meters are calibrated with a 342 ppm NaCl solution" I'm guessing this means the meter will use the NaCl conversion?

[@Just4Growers]

+Middle Finger yes.

[@Humbulla93]

@JJ different conversion factor means you will have a different reading as stated in the video 3:20

[@Humbulla93]

@JJ the meters are all the same but the internal multiplying factor differs

[@davidquintana8395]

So EC is the same as PPM or TDS ? Just different math ?

[@williamhansen9456]

***** EC meters measures electrical conductivity and express it in milisiemens. TDS meters measures electrical conductivity, but they have built in software that converts the milisiemens into ppm(parts per million). The "problem with TDS meters is that they don't all multiply with the same values and therefore different TDS meters will give different readings, while all EC meters will give the same readings.. In example: If an EC meter gave a reading of 3, and the software on one TDS meter would multiply by 4 to to give you the reading in ppm, it would read 12 ppm, but the software on another TDS meter multiplies by 5 and will therefore read 15 ppm. In conclusion a TDS meter is an EC meter with software, that makes people confused and misunderstand eachother.

[@Just4Growers]

William Hansen Thanks William. That's it in a nutshell! In Europe, growers go by EC and save themselves a whole lot of potential confusion!

[@travis7289]

great breathing technique

[@Just4Growers]

Sorry, too many espressos that morning :)

[@travis7289]

I think the simplicity warrants the speed. I meant it as a good thing. I appreciate the range of info in the time frame.

[@jaymo8206]

Im still confused. My location is SE Asia. Scratching the hair off my head trying to.sort out my nutrient water solution and soil runoff. My TDS-EC meter displays ppm and EC. so when it displays 0.600EC is that the same as 6000 microsiemens?

[@Just4Growers]

Hi Jay, thanks for your comment. When your TDS-EC meter displays 0.600 EC that's 0.6 milisiemens. 1 milisiemen = 1000 microsiemens, so 0.6 milisiemens = 600 microsiemens, not 6000. Typically, you would grow vegetative crops around 1.2 milisiemens or 1200 microsiemens. Some flowering crops require feeds up to 3.0 milisiemens or 3000 microsiemens, or higher. Stick with SI units like milisiemens / microsiemens.

[@jamalalharbi6877]

Hi how to Convert from PH to PPm

[@Just4Growers]

There is no natural relationship between TDS (totally dissolved solids) and pH because the dissolved solids can affect pH in a variety of ways. Potassium silicate, for example, is highly alkaline whereas monoammonium phosphate, for example, is weakly acidic. Seeing as TDS is a broad brush measurement and does not tell us anything about the actual constituent salts that make up the PPMs, nothing can be inferred about pH from TDS.

[@anelujan]

I have a problem with a tds meter was wondering if you can give me your email address and I can send you the manual I'm trying to calibrate it to general hydroponics solutions please help I don't know what tds calibration solution to get and use thanks un advance

[@Just4Growers]

I have a gmail.com address. just4growers is my username

[@MadMerdok]

WOW I was gonna buy one... but I don't think I`ll bother now... I think I`ll keep me ppm, and spend it on me me me lol

[@ymjdea]

This item you are viewing is a 3 in 1 Nutrient Tester to determine the nutrient levels in a solution with 3 parameters (CF, EC and PPM).（YM-2005A） If you use hydroponics to grow fruits and plants, it is necessary to know the strength of nutrients.

[@devendrapatel8068]

good

[@Rad631]

You just uploaded the 1.5 x version on the actual video so people don't have to change video speed :)

[@Bam-Bam1]

Are we in an auction?

[@Just4Growers]

CHAB HENG Sorry Chab-so much to say, so little time! :)

[@sibidee2421]

I think you should have waited a few hours between making that video on how to inject cocaine intravenous and this one. Or at least give us regular folks a little heads up before we began so we could have taken a few lines just to be more on the same level as you my friend. Not only am I now even more ignorant on the subject. I think I may also have developed ADHD...

[@meowmix1569]

Fuck off. All his videos are like this and for those of us that watch his videos, we love it. You sleepy, slow, piece of shit.

[@thomasbowen8929]

@@meowmix1569 who the fuck is we??? Were you also experimenting with the MCC spinal tap direct infusion? See my previous response for explanation on MCC or meth/crack/coke mixture. Thanks

[@meowmix1569]

​@@thomasbowen8929 Worst attempt at an Ad Hominem I've ever seen, maybe ever. We is the nearly 100 THOUSAND subscribers and the vast majority of likes on his videos. Perhaps my sleepy slow comment hit you on the chin. I bet it takes you fucking 5 minutes to read one page of a book with 5% comprehension.

[@Xplodicon]

My college professor showed this video in class! I'm in a greenhouse tech program

[@Just4Growers]

Wow-I'm honored to hear that +Xplodicon ! Hope it all made sense :)

[@amitsinha6572]

Just tell me what's the difference between TDS and PPM ????

[@Mohammad_Amin.Perseus]

For a sec I thought that you gonna reach light speed at the end .

[@adoptableplum]

nice video ill subscribe to that style

[@Just4Growers]

adoptableplum Thanks AP! :)

[@birjutaparia]

lovely..good that u talk fast. no time wastage and clarity of subject details are very good. superb!

[@honeyy79]

What? I look like a koalabear with ? marks all over me now lol

[@Just4Growers]

+Tone Andersen koala bears are so cute and cuddly. I love them question marks and all! :)

[@pushkarajchaudhari6371]

Sir you made my day... Thanx a lot I was searching for the same from long time but no one could ake me understand yet in such a simple language. Thanx a lot lot lot Lott..

[@Just4Growers]

Pushkaraj Chaudhari Thanks Pushkaraj I am glad that you found this helpful.

[@LiberalsGettheBulletToo]

Ugh, I never knew how many siemens were in my water!

[@iamnothing1538]

Great vid, easy to comprehend and memorise. Thanks

[@fantebukowski]

Great video!

[@Just4Growers]

iwannafarm .iwannafarm Thanks iwanna! :)

[@lm5050]

solid video cheers