Katadyn Hiker filtered dirty water Under the Microscope

Microscopic video of dirty water before and after filtration with the Katadyn Hiker filter.
The medium used for the petri dish was tryptic soy agar. The dish was incubated for 24 hours at 37 degrees Celsius.
Camera - Nikon D3300
Microscope - Leica ATC 2000
Microscope magnification of each shot is shown in the bottom right hand corner.
Music by Sci-inspi
Apple music: / sci-inspi
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[@nastybirdy]

Whoa. That is genuinely impressive. Use that to filter, boil what comes out of it, you're probably going to be pretty good.

[@SW-xz3zs]

Take this with a grain of salt, either idiomatically or drunken, but boiling is probably just going to concentrate salt, chemicals, and other malignant substances. You'd probably just lose more precious water by doing so and ironically making it more dangerous to consume. Just a guess. Grain or dumptruck of salt.

[@themightiness]

Anybody using these filters on a trail really doesn't have the time, fuel, or resources to boil that much water. People often use these hollow fiber filters alone to clean water on the trail with great success. I've used them (the Sawyer) and they work great. No boiling required! I've had to boil water once as a backup and I wouldn't recommend it to any backpacker if you can avoid it. It takes too long to boil any useful volume of water with a tiny backpacking cook kit - it will use too much of your fuel, or if you make a wood fire, it will make all your water taste like smoke. And it just takes forever.

[@user-yr7m2]

With Katadyn kombi I had no problems to drink straight from the swamp lakes many days in row.

[@askhowiknow5527]

Don’t you get more nutrients if you just drink the cloudy water after boiling it violently?

[@bensosnowski1128]

@@askhowiknow5527 I can’t tell if you are joking? Water does not have nutrients. Water itself is necessary to stay alive.

[@scottgordon3877]

This is fantastic! I would love to see a Sawyer filter, or a Grayl. Since Grayl claims to remove viruses!

[@ajhproductions2347]

Bro your videos are always enjoyable and informative. The self-made music really gives your stuff that much more character. Another great tune and awesome video! I have to think by now youd be running out of stuff to make videos on but clearly that isnt the case. Quality content without ads is a pretty unusual thing, I can tell you do this because you enjoy it. Cheers my man, and thanks again! 🤘PLAY SOME SLAYYYERRRR!!🤘

[@sci-inspi]

Thank you. I have a lot of fun doing this. The great thing about science is that there is always something new to see or learn. That and all the suggestions I get from my viewers gives me plenty of ideas to make videos.

[@kdvr766]

@@sci-inspi wait what? You made your own music for these videos? What a chad 🤘

[@kevinrosales056]

It would be pretty sweet to see the bacterial growth caused by cross contaminating meats

[@nighty85]

As a new hiker just getting into things, and as an owner of the Katadyn Hiker Pro filter as my first filter, this video puts my mind to ease 😌 thank you 🙏

[@azurepimpernel4652]

Hey can you please show us live cellular death like you introduce some substance and see the effects of it on the cell ( like toxic to a human cell or venom)

[@SwagonsSwaglord]

m8 , I recomend you the video : This Ciliate Is About to Die by Journey to the Microcosmos

[@horonoa]

@@SwagonsSwaglord that video is amazing, thank you

[@harrellconners1853]

I have used brand for over 20 years . Love it ! Thank you for your vids.

[@alex_7547]

The music in these videos is really great, a joy to listen to!

[@Jonnygurudesigns]

I’ve had one of these filters in my survival pack.. happy to see it will probably do it job! Thanks for doing this and sharing.

[@madmonkey8141]

You sir have a one of a kind channel and personality. Keep it going for our entertainment.

[@jasonschlencker8108]

Impressive clean water. Great vid!

[@meadowwalker4284]

This music i love! Subscribed. Thank you for putting these vids out!

[@JaimeGonzalez-tt4kk]

Great Test! Thank you very much!! I'm now more confident on backpacking with a water filter. There's no need to carry a ton of water!

[@jackjr1]

Would love to see one of those UV light water filters. I never trusted they actually work.

[@f.demascio1857]

Thanks for doing this. I'm a year late on seeing it. I love your channel.

[@jinchoung]

holy crap, that worked amazingly well.

[@comradeivan8134]

This is so fascinating. I’d love to see you test out the GRAYL water filter next!

[@manojnarayan1229]

Man that was interesting U deserve million subscribers ❤️👍

[@elsotanodechaz]

This guy is the LockPickingLawyer of filters.

[@fantasticmicrobes]

Really cool video!

[@SonnyDarvishzadeh]

Thanks for the tests! I have a katadyn like pouch which is similar to lifestraw

[@11Sauke11]

Thank you for this!

[@Jamesssssssssssssss]

The music though, I love it.

[@KA-pq3yz]

Nice. I would like to see MSR filter system test. Thanks

[@IDoABitOfTrollin]

That was very impressive... Getting one

[@izzieabrahamson3708]

Wow! This is incredible. I was hoping to see a petri dish comparison too haha

[@marcusroth4272]

Great test! Thanks

[@patriot5.56]

Love your videos!

[@paulinshebontee4534]

Hey man, really enjoy your videos. Hope to see you back soon.

[@sci-inspi]

Thank you. I have been taking a break to work on other things. But I do hope to start filming again soon.

[@paulinshebontee4534]

@@sci-inspi Thanks for the update! All good, please take your time. Wishing you all the best 👍

[@yos-alt]

damn that is very clean

[@festercheese8285]

Bug eggs or a swab from a kitchen sink would be rad!! Amazing as usual :)

[@ryansmith7605]

Love the content! Please do a sawyer squeeze ✌️

[@NatFaler]

Can you test how good sphagnum moss purify water in it? I heard that this moss has antibacterial properties. It would be very interesting if you check it

[@gabe8168]

If it does, it won't do anything crazy. Otherwise the moss would probably be dead. There are many more organisms than just bacteria

[@eclipse2966]

I feel like you'd be drinking a lot of water bears if you filtered through sphagnum...

[@mariastevens6406]

​@@eclipse2966 no kill water bears they're super cute

[@doxielain2231]

@@eclipse2966 free hugs! from the inside!

[@diam1381]

These videos are great!! Would you please test the Sawyer Squeeze backpacking water filter next?

[@NoobAlike]

Best ad ever

[@bensosnowski1128]

Just want to say that the sawyer has 0.1 absolute micron filtering (compared to the 0.2 micrometers of this filter) and is only about $20

[@NickVarn]

I’ve been buying sawyers for a few years

[@TheClaw2008]

I bought 20 sawyers and 60 katadyn hiker pro's for my hiking business and the sawyers all clogged in less than 2 years. The katadyns held up very well.

[@TheWizardboy5]

@@TheClaw2008 Smaller filter medium catching smaller particulate

[@el_teodoro]

@@TheClaw2008 isn't it recommended replacing the filter in less than a year?

[@mariastevens6406]

I'm thinking of using the katadyne as a main filter and the sawyer as an inline secondary for that reason.

[@valenesco45]

Would be nice to test the liquids from homemade canned food. I wonder if they are safe to eat and how long we can keep the freshness without forming dangerous bacteria. Normally canned food should be covered in vinegar or citric acid and water and boiled before being stored. But i cant test it myself unfortunately.

[@christianlopez1965]

Nice. I saw some comments for the Sawyer filters. Could you also do one for the UV light purifiers from SteriPen? Thanks.

[@johne5303]

Could you make a video and show what happens with filtered water after it’s been in an open bottle for several days?

[@joybreegaming8781]

To the best of my knowledge that’s what the Petri dish test simulates as it shows bacteria growth

[@TAVAAR7]

Just found the channel, love seeing stuff through microscopes. Any chance you plan on doing a video on the Sawyer mini and/or squeeze?

[@raymonroe1983]

Could you test Amazon basics water filter and the filter that Hooks up to the faucet. I really enjoy your videos and your content is very interesting.

[@filmic1]

That was great, thanks for the demo. I wonder if my old Katadyn ceramic Pocket Filter (white housing) is as efficient as that? It must be. I picked up the Katadyn 'Hiker Pro.' I think the only difference is the flow rate. Imagine, no culture on the agar plate!

[@johnaguilar5907]

This is awesome. Have you heard of the Grayl Geopress. It says it removed also 99.99 of virus, bacteria and Protozoa. Also some particulates, chemicals and metals. Can you do a vid of this?

[@Beelzebububble]

Hello. How about testing out the Sawyer Mini. The Sawyer Mini is looking like the go to for emergency filters. Just wondering if one will get an emergency relying on it. Thanks.

[@christophec.482]

I find about zero video of the effect of UV lights such as Steripen. If it interests you, I am sure it will interest other as well.

[@briangindling1266]

If ever you do another of these could I suggest the SteriPen? I just call it the magic wand. But specifically clearer water vs sediment filled water?

[@Thierryoutdoors]

Really, really interesting and useful videos as a whole, Thank you. Any filters that clean chemicals and viruses?

[@RainBoxRed]

1:35 that telescoping worm is cool.

[@JimmyJamesJ]

I've heard that pasteurization is as effective as boiling. You should try heating water to 60ºC for 60 seconds and see what survives. Also maybe bringing just up to a boil then stop heating. I'd try this if I had a microscope.

[@FshHnt192]

You should test out the Sawyer inline filter, I know a bunch of people that use them.

[@doxielain2231]

Funny, I just bought a filter today for bike touring.

[@ozarkmountainranger4201]

I'd love to see a more industial system like an MSR miniworks.

[@nbrown5907]

Thank you!

[@nenook1000]

Hi thank you for this video it helps to see what would otherwise be just words , may I please share it on my channel with accreditation to you

[@mangatraimodi]

Maybe show urine and debunk the old myth that it is sterile.

[@valenesco45]

True

[@l...]

#lifesaver filter

[@valestivale4711]

The only thing that would make this better, is if more explination were given to what we see. Its super cool :)

[@redpanda9647]

thanks for the videos and the hard work ...... is it possible to test how chlorine(bleach solution) acts on bacteria and fungus?, to have an understanding of the anti microbial effects of chlorine

[@1stRanger]

Would love to see GRAYL results. No one seems to be doing this kind of test.

[@MetalWolfz]

Everytime you look at clean water under a microscope I get reminded how dirty my monitor is lol!

[@vanrooyendavid]

These organismes, do they live/multiply forever in the water or is there a stage where they die off?

[@bjoink-yh4hr]

mitochondria is the powerhouse of the cell 😌💅🏻

[@esecallum]

Could you put water under microscope and pass small currents thru it like 100 micro amps to 1 ma to see what effects it has on micro organisms?

[@meismagiic4779]

I’d like to see how their vario filter does vs this, it has a ceramic disk that is supposed to reduce the cloudiness.

[@fransmuniz7629]

Congratulations, your videos are very informative, for a trekker these reviews are really essential, you won a subscriber. Please could you help me with a question? As I live in Brazil unfortunately the tropical climate worsens the water quality, which forces me to choose at least two methods of water improvement, in my case I chose a hollow fiber membrane filter for filtration (like the one you tested) and also the treatment by Aquamira Drops (Chlorine Dioxide - suggestion for a new video), so my question is: what should I do first? Filter the water and then treat it with Aquamira or should I first treat the water and then pass it through the membrane filter before consuming? Thank you so much for sharing your thoughts. By the way the music is great too, reminds me a little bit of Buckethead's Colma album.

[@rustyfisher2081]

I'm curious about that too, shame there's no response

[@penedrador]

pre-filter (textile, coffee filter) to get the dirt and bigger particles out, then filter, then sterilize it. But consider that the water could contain chemicals and heavy metals that can't be filtered out, except for the Sawyer S3 as far as I know...

[@fransmuniz7629]

@@penedrador Hi guys, thanks for your two cents, in my case I got better results using two water storage packages of five liters each, in the first package I collect and treat the water with Aquamira Drops A+B, in the second I put the water already treated by passing it through a Miniwell L610 membrane filter. I try to keep all the stuff clean with Alcohol 70 in order to avoid cross contamination. I preferred to do the treatment process before filtering because I thought it would be more beneficial for the durability and maintenance of the membrane filter, i don't know if chlorine dioxide can harm the membrane filter or the activated carbon after waiting about one hour to Aquamira do the job.

[@Drew86613]

Buckethead is the guitar king!

[@fransmuniz7629]

@@Drew86613 For sure my friend, Buckethead, Ed Wynne and Tony Iommi they are my current living guitar gods

[@jamesvickery308]

I would love to see test and review of a BKLES electric water filter

[@luizeduardo745]

Make a video about the effects of antibiotics on bacterias with timelapse.

[@zari_nailed_it859]

so what do you recommend this the straw tablets or boiling

[@esecallum]

next idea. could you check blood extracted before and after blood electrification? many reports say clumping is reduced...

[@proxymoxie]

Could you try the P&G water filtration packets?

[@LeaM77]

Could you do vape juice with different nicotine levels?

[@mythminded]

Hi sir, would you do the ceramic filter + active carbon filter dirty water test under microscope? 😊

[@TheMegaAsh]

You should test the Grayl GeoPress & the others Grayl sell.

[@AB-cd5gd]

Hiya, do this filter also will filter nutriments like potassium and such things?

[@goodmaninabadtime117]

Can you do the GRAYL filter? Supposed to remove everything including virus.

[@peacefuldeityspath]

Hi. Please try the product micro ban? It says it keeps killing germs after 24hrs u think u could try it? Not for hrs lol but after it dries?

[@3dplanet100]

Can one day you try to see under the microscope *Candida albicans* and to put coconut oil, which researchers said it kills it? Thanks.

[@tinymints3134]

Can you test tap water?

[@el_teodoro]

This makes me wanna buy a microscope. Any cheap ones people recommend?

[@jacksoncheng3070]

Can you please do the Grayl Geopress?

[@backwoodsbaby9729]

Is there one for the sawyer?

[@Angel-nf4nt]

Can you do tap water thats boiled, cooled, then filtered using ZeroWater filter?

[@beholdr87]

So I was thinking, how well would a DIY water filter work when combined with Iodine tablets? Just put some fabric at the bottom of a funnel, then sand, and small gravel, use that to filter the very dirty water the iodine didn't work in the first time, then use the tablets? Basically, if you were lost and only had iodine tablets, would that make-shift filter be enough to allow the iodine to clean the rest?

[@sci-inspi]

The iodine tablets will work better if it is filtered first, even if it is a crude DIY fabric filter. It's not the best option but if that is all you have available, its better than nothing.

[@theknittinkitten2954]

Have you tried the Sawyer filter? It's 0.01 instead of the lifestraw saying 0.02.

[@Semeion7]

WOW Very nice! Can you test Sawyer Squeeze Filter or Sawyer Mini please please please? :D

[@TheRenegadist]

Two questions, any chance for a bandcamp or YT video album for your release and can I have permission to use your music in my streams with credit given?

[@sci-inspi]

I have my stuff on KZbin and other platforms such as spotify or apple music. I don't have a problem with you using my credited music, although I don't know if there are any automated systems that may flag you for doing so.

[@Amilookinatchoo]

Please test out the Grayl water filter

[@christophermontroy642]

Have you tested the Garyl water filter? It says it removes Metal and virus.

[@Ryan.Dias619]

How about testing cold pressed raw coconut oil vs commercial pasteurized coconut oil?

[@KellyS25]

Could you show us the microbes living in the water of a oligotrophic lake or body of water?

[@win2300]

Have you tried the grayl filter?

[@EndreaiYT]

Can you try it on normal dirt/soil?

[@yazzydrazzy]

So you now how you're supposed to close the toilet bowl when you flush the toilet because fecal matter can get on your toothbrush. Can you do one where you compare tooth brushes from one where the toilet bowl was closed and one from when the toilet bowl was open?

[@budprepper3811]

How about bleach and/or UV light after filtration?

[@filoIII]

So, was this better than the LifeStraw?

[@scootermom1791]

0:51 The bacteria that stretches out then contracts to move itself around is very, ummm, interesting. It reminds me of an inchworm. Why was the filtered water yellowish if everything was filtered out?

[@brendanfields3691]

man that's crazy at the end you said it doesn't remove viruses if you boiled the water after filtering would that kill viruses

[@anerdy]

Can you test vitamins under a microscope?

[@grandmaster1294]

Could you remove bacteria etc with the help of cotton cloth and paper . How can we remove salts and heavy metal impurities from water.it was my dream to test myself all that experiment but busy life don't allows you are doing a great job.

[@unherdac]

You can easily remove these things with a Distiller or any distillation process.

[@vrx2701]

can u do a unwashed vegetable or fruit under a microscope?