All About Flushing (Leaching) with Hydroponics

[@Jmon808]

This is the video that made me understand how to manage ec runoff and prevent salt buildup

[@DTtheravingpostie]

I absolutely love the speed you talk! No time wasted. Perfect. Thank you!

[@Just4Growers]

Well that’s nice to read. Thank you.

[@spjmalimumbai]

Sorry, you speak to fast to understand for people mother toung is other then english

[@PhilKoenigBrooklyn]

Funny, that's the only thing I DISLIKE about this channel. Everything else is perfect. For me, it's a real waste of time either slowing it down or watching segments over and over to try and catch what was actually said/meant. What's the hurry?

[@SchutzReborn]

@@spjmalimumbai slow down the playback speed to .75x.

[@locutusdeborg4288]

​@@PhilKoenigBrooklyn I dislike all the DRAMATIC EMPHASIS ! Otherwise a good place for data....

[@jaimedelgado7529]

damn this is what I call a quality vid. loads of info fast. no nonsense. ive only seen this one vid but imma sub. you earn it

[@mak8252]

Half an hours worth of information in a 5 minute video... & it was totally understandable. That’s skill!

[@thctitan]

I have never thought about tapering down to my flush, but luckily I kind of already do it by beginning my flush with organic teas then to straight water. 👍Great video!

[@Just4Growers]

Sounds like you already know what you're doing :) nice one!

[@jamesyates5750]

​@Everest Fernandez that's really and truly comedic!! There might be a reason for that knowledge. Ever heard of Square1 or Robinhood Seeds?

[@hball6695]

excellent information! currently about halfway through my first coco grow and this is great stuff. you have a new subscriber and fan, thanks and keep 'em coming!

[@Just4Growers]

H Ball Thanks amigo. Much appreciated!

[@clintparsons3989]

You're at about an 11, imma need you to take it down to about an 8.

[@zackosborn1731]

The "Bern" joke was a great quick one, love it!

[@CGreciful]

awesome vid. all the little stuff we "know" but so well put together and in the right context in your vids!

[@Just4Growers]

Thanks Christopher :)

[@hyperstimmed]

In 5 minutes this video enlightened me to everything wrong I did with my tomatoes during summer

[@morgan1719]

Algorithm isn't giving the love it should. Subscribed!

[@Just4Growers]

Appreciated!

[@hball6695]

Love the info, Everest, I'm learning so much! How about a vid about a subject you mentioned in your "Flushing" video i.e. Osmotic Stress?

[@OutfitMyLife]

this guys style is killing my high lol,informative none the less when u can catch it

[@Just4Growers]

That’s the last thing I want to do, amigo. Hope that makes you feel better. :)

[@rogerchien2329]

What's the rush

[@tiviscahoon9217]

Dont change anything . best grow videos by far . thanks

[@Crysmatic]

all good info. commercial growers do not flush before harvesting! Tomatoes like an EC of around 3.5 mS...and cherry tomatoes are near 5.0! High EC creates generative development, and builds flavour and nutrition. Of course they have super good control over their fertilizer solutions.

[@Just4Growers]

Wow, that's crazy high EC for the cherries! I've tried to deliberately overfeed tomatoes for various "experiments" - and I can personally testify that it really takes some doing !!! In my overwatering video I show some over-fertilised toms-that was 8.0 !! (Yep, that worked.) :)

[@Crysmatic]

hehe. It's funny how, when I was a newb, I'd kill plants without knowing what happened. Now that I've got some skill, it's hard to kill them. Take liquid samples from a Grodan cube with a syringe (run off is NOT reliable). When the pH/EC matches the nute solution, you're just about perfect. No guesswork needed. fyi, check out Grodan's 6 phase growth manuals.

[@Just4Growers]

Crysmatic Thanks buddy, I will look those up. :)

[@furioustortoise9828]

I think you might just be the only you-tuber with zero dislikes on 99% of your vids. As if that wasn't enough, your info on growing has got to be at least 99% correct too! Who even are you?! That really deserves some accolades so here goes them imoji 👏🏽👏🏽✨✨😭😭✨✨👏🏽👏🏽

[@Just4Growers]

Thanks FT. I appreciate all your input and feedback. A lot goes into each and every vid - fact checking with industry specialists etc. I have a thick black book! :)

[@dannyboy42223]

nice video, I've been guilty of straight flushing once a week myself. will change now with this new info, thanks.

[@j-nifty6664]

One thing you left out. Measuring your ph run off and how to decipher what it means. For example, if your run off ph is lower than the ph in the nutrient solution that is a sign of nutrient lock out occurring in the plants root zone. On the other hand if your run off is coming out at the same ph or about.1-.3 above the ph of your nutrient solution that is a sign that your plants are feeding properly and maybe are even up taking nutrients faster than you are making them available (in the case of it reading .1-.3 above your input ph). In which case you may need to slightly increase the EC of your nutrient solution.

[@ThePlayasyougo]

Please do a video on finishing agents such as GHE Ripen and Advanced Nutrients Overdrive.

[@infringinator]

theyre all $$$$ and water. Do you want to buy water at $20 a quart? Or do you want to buy 50pounds of powder you mix into water for about $100 total.

[@SittingBullStudios]

Man i love your videos, your formats great for me, im from the northwest and we often get told we talk too fast, but... everyone else just talks too slow!

[@Just4Growers]

Ah! How refreshing! A viewer who actually likes my speed! I think I'll start saying I'm from Seattle. :)

[@tv76g]

Love your channel and love this video! I've been waiting for this video on flushing and THANKS for the info!!! Great job my friend! Peace ✌🏽️

[@Just4Growers]

Thanks tv76g-appreciate the +vity!

[@DankUrbanBoss]

When you deal with deep water culture you said all you have to do is change out the plant. And I assume you follow the rule from before where you just do quarter strength and half strength in the following days leading up to harvest. But would you ever need to use florakleen with RO water with dwc

[@Babaroni764]

Great video. Can you recommend a certiefied hydroponic course online for starters ?

[@YesheRabsal]

Awesome videos Everest. What is the best way to leach a wicking system?

[@Just4Growers]

Good question Yeshe! If possible, remove the pot from the wicking system tray and top feed with half strength nutrient until 30% of what you have fed comes out the bottom as run-off. Discard the run-off or dilute 50% and use it to fertilize your lawn or house plants.

[@sebsgrowingglobal4363]

your videos are great. Quick, solid info that every grower NEEDS to know. Have a blessed day man, and thank you for the awesome content! :)

[@kikipines5697]

best channel

[@Kushfury]

Awesome video Everest! Thanks for the info!

[@justadbeer]

Questions for all the bud growers. So I've been doing hydro for quite some time now and have never flushed my res. To be honest, I've never seen the need and always had good outcomes. I'm thinking I would like to try it to see if there is any diff in the outcome. So my 1st question: Can I simply pump out my main res from time-to-time and change out the water/nutes (which flows into two separate reservoirs where the plants are), or do I need to remove the plants and clean down everything, which would only be possible when the plants are small anyways. And my 2nd question: How long can/do you guys let a res run without anything planted in it? I was prepping my 2nd tent but it's been close to a month and a half and the clones are not ready to go in yet. There are no nutes in it and I have been adding a small amount of bleach once or twice a week to keep everything clean (water temps are at a constant 65 f ) Should I just pump it out and leave it dry from now on after a grow and simply fill it a week or so before needed? Thoughts?

[@Just4Growers]

Hello buddy. For a res change you simply need to pump the spent solution to a drainage / collection point. As long as you are maintaining a reasonably clean growing environment there’s no need for anything more while your plants are in mid-cycle. As for nutrient solution waiting for plants, just try to keep it away from direct light and you should be fine.

[@justadbeer]

@@Just4Growers - Thanks for the quick reply Ev

[@MrChit-od9po]

Fast, slow - who cares- this guy knows his stuff. Thanks

[@sweet_sanndy6037]

Loved the video!! So much info! 🙏

[@Just4Growers]

Thanks Sanndy. I appreciate your support and positivity-it certainly encourages me to keep making the vids so thanks again.

[@komalthecoolk]

I know you did videos about Ebb and Flow but can you pleeease do a detailed video on your Ebb and Flow setup because I see different kinds of pots and media and different sized trays?

[@Just4Growers]

Sure thing-my previous Ebb & Flow video ( kzbin.info/www/bejne/bGHYoJ6caLygitE ) was popular so I should definitely do some follow-ups.

[@shanemolloy8250]

Hi pal . I have a fruiting annual lol and its flowering . I see either cal mg deficient or PK toxic . I flushed with a low solution no change can i assume deficient ? I only put 5 litres flush through slab 100 cm 2 x 6 inch cubes . Is that enough . 2.5 then again 2.5 flush .

[@dailyamusing235]

Why you got cubes on the sticks???humidity???

[@mikep9341]

How long after leeching should I give it nutrients?

[@evanfages9135]

Everest, why do you have rockwool cubes on top of your sticks in your tomatoes?

[@Just4Growers]

+SirEvDawg the Magnificent Eye protection!

[@justinoxton6790]

So what happens to the water that's leached out? Where does it go?

[@MrDylanryan]

Ok, so I have a recirculating system I change each week.. I am a new grower, so this is all new. You are saying flush each time I change my nutrients? And how long do I flush for at the end of veg? And do I flush then for a week at the end? And also at the end of Flower do I just reduce to half strength.

[@Just4Growers]

Hi Dylan, you don't need to flush each time you change your nutrients. Just keep an eye on the EC / PPM of the leachate (run-off) before it returns to your tank. Towards the end of flower you should start reducing your nutrients gradually. The final week you can use pure water if you wish.

[@oscarlu]

What's with the inverted rockwool cubes? Increasing humidity?

[@Just4Growers]

+Oscar Luna stops me poking my eyes out :)

[@oscarlu]

+Everest Fernandez (Just4Growers) lol. Nice. Added you on Instagram. Thanks for the video!

[@Just4Growers]

+Oscar Luna awesome thanks I'll follow back

[@Just4Growers]

+Everest Fernandez (Just4Growers) what's your Insta ID?

[@loerkue]

I thought it was to dry the cubes out. LOL

[@jensen139]

Are the salts or nutrients different in organic soils thus not needed to flush? Why is it so different between soil and hydroponics?

[@cheeseface99]

Should i ever place dwc roots into 0ec ro watet to leach them....me thinks not

[@askirojadu]

What are the benefits of adding peroxide to a flush? Does a build up of old dead roots really harm the system that much? Is flushing for 1 hour with 0 ppm water enough to get most of the insoluble nutrients from a perlite only media after a month of no nutrient change out? I am just not sure of good way of detecting how much insoluble nutrients are in my system at any given time.

[@Just4Growers]

Hi Askiro. I would recommend an enzyme-based product (i.e. Hygrozyme) to clean / sterilize old dead roots rather than H2O2 unless you are seeing signs of root rot / pythium. Flushing with 0 ppm water is very aggressive and I would suggest using a 1/4 or 1/2 strength nutrient solution instead.

[@askirojadu]

Ok so when I flush I add 0ppm water to a 600ppm reservoir. After 3 flushes the reservoir ppm is about 150-200ppm. Then I add my nutrient to get the reservoir ppm to my target of 1000ppm or 1300ppm. So the plants are deprived nutrients for the time it takes me to flush (about 1-3 hours). The plants show no signs of stress from flushing, so I really don't think its that aggressive. Adding 1/2 strength nutrient just to flush means I am throwing out a ton of nutrients which just seems wasteful as hydroponics is already pretty expensive as it is. I have considered using products like Hygrozyme, but I figure the old roots will eventually just get removed little by little every time I flush, so I am skeptical if it is really necessary but I will probably try it just be sure. Thanks for the response. I think flushing and lockout are the 2 biggest topics that hydroponic growers just don't have a firm understanding of so I appreciate the video.

[@bentleypfister9746]

Show us your cannabis plants plz .

[@Quiknugs]

Bentley Pfister would be nice

[@rateman09]

😂😂😂 trust

[@rumpelstiltskintbrew9251]

basil, herbs and leafy greens can u flash them?

[@Just4Growers]

+Rumpelstiltskin TBrew You can flush anything but no real need for leafy stuff.

[@rumpelstiltskintbrew9251]

is this the only to contact u on subject? becuzz i have lots of question and ty so much everest fernandez for ever thing. i have lernd so much by u. u realy help ppl that cant reed well.

[@nolking9301]

Whats the purpose for the rockwool cube on top of a stick?

[@Just4Growers]

NoL King lol - just to stop me poking my eye out when I lean down to inspect my plants!

[@nolking9301]

@@Just4Growers 😂😁 good stuff👍 ...thanks growmie ✌

[@josefdolansky5486]

Hello, i saw you in other video loving trunks of your peppers, is it caused by using GH Mineral Magic or GH Diamond Nectar?(or Diamond Black? I really don't know) thanks and good luck with your plants🙋

[@Just4Growers]

+Josef Dolanský Those pepper trunks are just the result of an extended vegetative period amigo, nothing magic about it. Just proper feeding schedule with good quality water and plenty of calcium as a base. Additives are great n’ all but it’s all about the nutrients.

[@josefdolansky5486]

Everest Fernandez thanks, i wasn't sure, I am using flora series too and my friend from grow shop said that they were growing big peppers and in some part of their plants they used Diamond Nectar/Mineral Magic (sorry I am not sure) and they had really massive trunks! But OK, thanks! Have a nice day!

[@SoldierOfTheLord]

Everest, how's about a video on how to combat root rot? Your informative video collection could use one. Just a thought (wink)

[@Just4Growers]

Thanks Larry that's a great idea. I have an electrolysis device that works great for this-as well as H2O2 of course-an aquarium chiller, and-if all else fails-there's even the possibility of using silver nanoparticles! It would make a great vid.

[@qqww21vvf]

in!

[@TarkMcCoy]

I do a weekly flush of the system with 1TBS Physan 20 / 50 GAL of water. I set my ebb & flow system to flood/drain once every couple of hours. Next day I back flush the expanded clay pellets (helps lower dried in salts), drain the tanks and refill with water, nuets and Hydroguard (to bring back the good bacteria.) That goes for a week and I do it over again. And cool roots are defiantly a must! I pump the tank res through a cooling coil in the freezer of a small refrigerator to keep the tanks cool.

[@theladl9072]

should I ph the ro water when flushing b4 harvest???

[@Just4Growers]

No need amigo.

[@theladl9072]

@@Just4Growers thank you master sensei!

[@Topsrite]

Great info Everest. Just slow down, just a tiny bit and keep voice over steady, but again great vid and info, thanks

[@deltajegga]

whats with the rockwool on the sticks?

[@Just4Growers]

+TR1PpyNick just to stop me poking my eyes out

[@zer0_d0wn45]

if every video was this efficient we would be reaping the technology of 3021 right now...

[@bcbudinto]

I have had difficulty finding a scientifically sound reasoning for the idea of "mineral build ups" in finished products. what minerals specifically and can they be shown to have falsifiability as far as negative impact on finished product? I ask because I remember back on the old OG site when the idea really blew up, I remember the thread actually and I've yet to see more than anecdotal evidence of any improvement in quality or yield from leaching. I've seen a ton of "connoiseurs" talk out their asses though.

[@truthspace5525]

bcbudinto This is a good question, as I remember those threads on OG. It has been proven to improve taste in some crops to flush before harvest. Usually the flush is to reduce mobile macro nutrient levels in the plant tissues, mainly nitrogen and phosphorous with marijuana. I think it would have a lot to do with how hard you push your nutrient concentrations, and whether or not you grow in a medium that retains salts.

[@truthspace5525]

bcbudinto This is a good question, as I remember those threads on OG. It has been proven to improve taste in some crops to flush before harvest. Usually the flush is to reduce mobile macro nutrient levels in the plant tissues, mainly nitrogen and phosphorous with marijuana. I think it would have a lot to do with how hard you push your nutrient concentrations, and whether or not you grow in a medium that retains salts.

[@dyelonjoyce7130]

Hey Everest my Botany professor wants to know the physiological reason why people flush or leach. She says she doesnt flush any of her plants bc she wants the highest brix level. Do you know of any scholarly or peer reviewed or university papers or studies on the topic of flushing or leaching. She says all this information is anecdotal and just another myth from Cannabis growers.

[@Just4Growers]

+Dyelon Joyce firstly Dylan, cannabis growers are arguably some of the best gardeners on this fine earth - however I've heard a few "anecdotes" in my time too. Brix levels are not the only fruit. Or, to put it another way, surely reducing the concentration of dissolved mineral ions in solution over a week or more will have the consequence of reducing their respective concentration in the plant itself over that period of time. For some crops this practice can improve tastes and aromas, in others, not. My example of tomatoes is perhaps contentious as I am aware of commercial practices but tobacco, certainly.

[@WisdomIsPrecious]

Is she growing cannabis or is it a different plant?

[@truthhurts7624]

Why did you have rock wool above the plants?

[@Just4Growers]

Stop me poking my eye out on the stakes

[@truthhurts7624]

@@Just4Growers lmao great idea I've actually hurt my forehead before.

[@christophernowak8253]

Whats your method of flushing with AutoPots?

[@Just4Growers]

Christopher Nowak Now THAT'S a good question!!!! Pure water in the res is the best you can do practically.

[@mohergenrader2113]

All the info I need at the perfect speed. ADD much? Gotta run now.

[@mbed0123]

Rock on brotha!!!

[@Just4Growers]

+YOUDIEMOFO :) nice one man!

[@mbed0123]

+Everest Fernandez (Just4Growers) wanted to know if there was anything you could say about "UV sterilization" for your "garden?!" Have a buddy who swears by it, but never witnessed/tested any wares.....

[@shaquillesimmons3113]

what about flushing romaine lettuce for 8 hours with pure water ph6.0

[@davidrule3454]

Nice!!! Thumbs up!!

[@sirdaddytopper]

Are you related to the guy who reads the terms and conditions at the end of financial ads?

[@Just4Growers]

Times are tough. Gotta make ends meet. The value of your investments can go down as well as up. Lol.

[@hotheadsniper]

hi everest!how can we flush indeterminent tomato plant when it keeps bearing more fruits through out the season?and do we need to flush the spinach plant when we grow it in nft system?please reply.it seems like you never answer any question?do reply or i have to unsubscribe you this time.

[@Just4Growers]

nirvik singh Sorry your comment was held for review. If you keep feeding an indeterminate tomato it will keep bearing fruit. I wouldn’t worry about flushing spinach.

[@hotheadsniper]

thanks!everest,for the reply and information.so is it safe to eat that spinach without flushing it?isn't there any residue of chemicals left in it?i'm a little concerned about chemicals.anyway,thanks again for the reply i have learned a lot from your videos.

[@hgtxfcthxf6246]

lol "indeterminate tomatoes" i love you

[@KK-px4hh]

Hi. Can you recommend the best Electrical Conductivity for tomato plants. Some suggest not more than 2.5 Ec (cropking.blogspot.com/2013/11/beefsteak-cultivar-trials-part-1.html) and some say it should be 3.5Ec when fruiting. I m confused. I'm going to start a commercial hydroponic farm at 500 sq meters this august and i still can't decide about the perfect EC for cherry tomato. Please Help. Thanks

[@zackherer]

play in 0.75 speed, fixed

[@kennethwhite7858]

Thanks worked for me!

[@locutusdeborg4288]

I like the NO OFFENSIVE MUSIC. I stopped watching some channels because of the BORING music they forced you to listen to.

[@bironcaldwell3923]

your content is killer.......recent sub, keep em comin

[@Just4Growers]

+biron caldwell Thanks for subbing and your +ve vibrations Biron :)

[@tyler238]

Holy shit he talks faster than twista raps

[@mrinternational7586]

I'm everest 420th follower on insta lmao

[@Just4Growers]

You’re my 420th followee :)

[@loadapish]

fuck man this video is goin to give me so much writing to do

[@matthewmunold8604]

Great stuff as usual, too bad Uncle Ben and homebrewer just unsubbed :(

[@matthewmunold8604]

Question is: is Heath still around?

[@Just4Growers]

Not sure. He's certainly been quiet.

[@matthewmunold8604]

A little too quiet..hmmmm

[@olgafrancheskamakarova5918]

Please please, post a transcript because it is practically impossible to understand what your are talking about because you talk too fast.

[@ascendordie7427]

Please slow down there is no reason to be pushing the info that fast.

[@skafa0101]

Dude its. 2016, I think its ok to say its for weed.

[@Just4Growers]

+Jose Lasprilla Thanks Jose. It may be 2016 where you live but in other parts of the world it's 1437 (and 2559). I just hope new growers find my videos useful. Peace and happy growing, Everest.

[@skafa0101]

+Everest Fernandez (Just4Growers) yeah your videos are amazing. Their fast and to the point. Just sucks you cant say the crop that theyre really meant for.

[@furioustortoise9828]

Whatever dude! These heady tips gave me the dankest tomatoes and bell peppers of my life. Can't wait to roll some up in a giant burrito and veg out with my sledge out.

[@mattd4272]

Better than grow boss raving on about a ficking plant for 50 years and how you should prune it he's all hammered lol go check it out.

[@zulfikarkhawlah]

Why you talk so fast? I am Malaysia take time to understand

[@HeatherRoseMusician]

Great video, but, slow down duuuude!

[@montykiki8883]

Breathe

[@Cowboy684]

dude has a truncheon and hes growing tomatoes. 🙄

[@SydamorHD]

Half the dose of cocain is totally fine dude, think about your blood pressure.

[@medycznyolej5355]

You speak too fast.

[@Just4Growers]

At least I reply fast too. :)

[@Rei89CH]

Medyczny Olej You listen too slow.

[@dakotatenhoeve8880]

Everest Fernandez people comment on every single one of your videos saying you talk too fast... maybe it's time to take that on board?

[@Imakeplanesboom]

I've seen all of his videos and he doesn't speak too quickly. If it's too quick, I suggest waiting till after the video to consume some of your plants.

[@GaryWRose]

go to settings and turn the speed down...

[@locutusdeborg4288]

I dislike all the DRAMATIC EMPHASIS ! Otherwise a good place for data....

[@dianastouraitis6731]

Fast speaking ruins this video. what's the rush? You're videos are very informative it's just so hard to retain anything you say when you speak so fast. very annoying.

[@Just4Growers]

+Diana Stouraitis Thanks for your feedback Diana. It may interest you to know that this channel was born out of frustration - but stemming from videos being too slow! So maybe I've gone too far the other way but I'm sure I will find my feet eventually and strike that happy medium. Anyway, apologies for any vexation.

[@caza00caza]

That’s some weird looking weed

[@bradbaker3518]

I agree you speak way to fast

[@Just4Growers]

+brad baker Mind you don’t type too fast amigo. :) I genuinely appreciate the feedback though. Thank you.

[@patrickregan7163]

Decaf before making a video please

[@ashevillehydroponicsorgani8733]

Flush Flush Flushidelphia!!!

[@taylorbrad111]

HUH?

[@guttentag6924]

talking quickly doesn't equate to having a high IQ, just sounds like you are trying too hard

[@Just4Growers]

+Gutten Tag "A high IQ is a good indicator of an ability to complete IQ tests," he declared speedily.

[@gorillamotors]

You need to talk a little faster

[@maxlulow4569]

Whatever you do, don't actually show the act of flushing a plant. Only talk about it! I have watched several videos on flushing and rarely does the person actually show the process of flushing the plant. Talk about a crappy shuddering video.

[@Just4Growers]

Hi Max, thanks for your feedback. You make a valid point and I have taken it on board. When flushing, try to achieve at least 30 to to percent run-off compared to what you water in. I am planning some videos about coco coir potting mixes which will demonstrate this. Thanks again - I will put “How to actually flush your growing media” into the video todo list. Peace and happy growing, Everest.

[@illfindu1951]

You're talking way too fast to notice anything. It would be no problem if the video is 10 min long. So i dont understand this speed-up. :D

[@rikkilee9409]

you talk too fast