roots need oxygen right?...

D

DIYer

Well-Known Member
ok,.. lets assume plants get all the o2 they need from h20, what if you don't aerate res water and it sits stagnant for 2 weeks? You think their still getting enough? seriously, i have no idea :)..seems a little stale to me by 2 weeks though.. anyone not in dwc aerating?
 
Trichy Bastard

Trichy Bastard

Well-Known Member
Thedillestpickle said:
I think your overcomplicating it. The roots will use up the oxygen pressent in the air but it takes a long time... Think about CO2, it takes some time for a plant to turn 400ppm air to 200ppm air.. thats only a difference of 200ppm... Oxygen is present at around 27% of the total air! which is roughly 270000ppm... see the difference? 400ppm < 270000ppm

The small amount of airflow given through the clay balls in the net pot will be adequate to keep the O2 levels up

If you want to bring it up a little bit higher you could probably put a small hole in the lid, and stick a black straw with a bend in it, into that hole(this way no light will go through the straw and no water will splash out.

If you keep the water temperature of your res low the RH coming out of the bucket will be fairly low, as the water saturated air that leaves the cool bucket warms up to the temperature of the rest of the grow room, the RH will fall. Damp cool air becomes very dry when you heat it up.

I think your plans to build all this crazy tubing and vent out your buckets are way too much work... and if you understand the science that I just explained then youll know its also a waste of time

good luck
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I already tried telling him... So it's a fun project to watch, and I will know once and for all if what I think is right (agree with you), verified by a bona fide experiment... I already learned a little by reading on the subject, so it's been a positive experience so far. Nothing is lost by trying, but it's better than being closed minded I guess. Who knows, maybe we'll learn something here whether it's exactly what we set out to learn or not.
 
Thedillestpickle

Thedillestpickle

Well-Known Member
Trichy Bastard said:
I already tried telling him... So it's a fun project to watch, and I will know once and for all if what I think is right (agree with you), verified by a bona fide experiment... I already learned a little by reading on the subject, so it's been a positive experience so far. Nothing is lost by trying, but it's better than being closed minded I guess. Who knows, maybe we'll learn something here whether it's exactly what we set out to learn or not.
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I actually think his plan will be hard on the plants roots, and be really inefficient as a method of removing air from a grow room. Pulling the dry hot "oxygen enriched"(barely) air over the roots will dry them out, and then exhausting the humid air through your filter will mean your pushing air out the filter which isnt how your supposed to use them, plus it will humidify the activated carbon(your not supposed to bring highly saturated air through the filters). You would also have a hell of a time providing the proper ducting to all the buckets to no severely restrict airflow, thus choking your fan and making your exhaust system work inefficiently
 
Thedillestpickle

Thedillestpickle

Well-Known Member
Injecting pure O2 into the buckets would be more effective and not have all the negative side effects I just listed. Trouble is the question of whether pure O2 is toxic to the roots or not?
 
Trichy Bastard

Trichy Bastard

Well-Known Member
Thedillestpickle said:
Injecting pure O2 into the buckets would be more effective and not have all the negative side effects I just listed. Trouble is the question of whether pure O2 is toxic to the roots or not?
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I wondered same thing and also of the o2 concentrated too high could be toxic to them... I don't think he liked that idea though, something about needing to exchange all of the air, which didn't seem necessary to me. :o
 
D

DIYer

Well-Known Member
none of it seems necessary to me if plants do get all there o2 they need from water, thus my asking the question
 
Trichy Bastard

Trichy Bastard

Well-Known Member
DIYer said:
none of it seems necessary to me if plants do get all there o2 they need from water, thus my asking the question
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Hey, what did you get out of that article, it answered some of the pieces of the puzzle.. Wish it could be read in it's entirety...
 
D

DIYer

Well-Known Member
the more i read,.. the whole things probably not worth the effort,.. any improvement would probably be small,.. i canceled the order or the air pump and stones. if i do aerate my res i wont need a pump that big. fuck it, ill just keep dialing in my cycle and spend that money elsewhere in the room. my roots are nice, but i think I'm seeing even more improvement in them since ive gone to a bigger pump in my veg room and cut back misting to 10 min off 5 seconds on. gotta keep thinking of new ideas for improvement everyday though.

how long does your res solution last tb?
 
Trichy Bastard

Trichy Bastard

Well-Known Member
DIYer said:
the more i read,.. the whole things probably not worth the effort,.. any improvement would probably be small,.. i canceled the order or the air pump and stones. if i do aerate my res i wont need a pump that big. fuck it, ill just keep dialing in my cycle and spend that money elsewhere in the room. my roots are nice, but i think I'm seeing even more improvement in them since ive gone to a bigger pump in my veg room and cut back misting to 10 min off 5 seconds on. gotta keep thinking of new ideas for improvement everyday though.

how long does your res solution last tb?
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I think it's a wise choice, perhaps buy an accumulator <nudge> <nudge> ;) well, for me, it's always changing, but roughly 10 gallons last me a week or so for my chamber that holds 8 plants. It sounds like your cycle could be drastically cut back, you really need to have less than one second bursts to get the true HP rootstructure in 5 gallon buckets, and that's even pushing if it's possible at all in such a small chamber. You'll save on nutes in 2 ways- 1) you'll obviously use less total solution, 2) you'll be able to use weaker nutes with the same or better results. You can grab a 10 gallon accumulator tank like me for about 60 bucks or so and a pressure regulator for around ($30), if you want to manually pump, that's all you need. If you want the recharging process to be automated, you'll need a pressure switch (20-30$) and a pressure release valve (12$) and the JG fittings to make it work.
 
D

DIYer

Well-Known Member
thats not a nudge,.. thats a shopping list, lol

..but actually i was thinking about getting one for a mister system throughout my house. i got high ceilings,.. i pay a lot to AC this place in the 120F summer heat, i tried it once but dripping was annoying,.. wonder how much it would cut back on my elec bill...
 
Trichy Bastard

Trichy Bastard

Well-Known Member
DIYer said:
thats not a nudge,.. thats a shopping list, lol

..but actually i was thinking about getting one for a mister system throughout my house. i got high ceilings,.. i pay a lot to AC this place in the 120F summer heat, i tried it once but dripping was annoying,.. wonder how much it would cut back on my elec bill...
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darn, you saw right through it.. hehe.. Well yeah, with the accumulator being instant on/off there probably wont be much if any dripping. Perhaps a combo of misting, and some of those silver round spinning globes sucking it out would work well, and keep the humidity down.. A swamp cooler would probably bethe best cheapest idea though..
 
thump easy

thump easy

Well-Known Member
i want to talk to my nabor he is an old man i want his oxegen tank n plug into my aroe and see what happends lolz
 
D

DIYer

Well-Known Member
only bitch of a misting system indoors is its gotta be RO water or with the tap we got here (all be it free) it'll leave water stains behind if any hits the floor. i think the best plan of attack would be to mist in short bursts so i could use tap, and not get residue left behind.
 
D

DIYer

Well-Known Member
Trichy Bastard said:
I think it's a wise choice, perhaps buy an accumulator <nudge> <nudge> ;) well, for me, it's always changing, but roughly 10 gallons last me a week or so for my chamber that holds 8 plants. It sounds like your cycle could be drastically cut back, you really need to have less than one second bursts to get the true HP rootstructure in 5 gallon buckets, and that's even pushing if it's possible at all in such a small chamber. You'll save on nutes in 2 ways- 1) you'll obviously use less total solution, 2) you'll be able to use weaker nutes with the same or better results. You can grab a 10 gallon accumulator tank like me for about 60 bucks or so and a pressure regulator for around ($30), if you want to manually pump, that's all you need. If you want the recharging process to be automated, you'll need a pressure switch (20-30$) and a pressure release valve (12$) and the JG fittings to make it work.
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how big a tank you need to go 2+weeks without a hand pump?


RO is a pain,.. i use to lug it home from walmart for cheap, but still such a pain. the best RO solution for me would be a home system, but with our high ppm tap water here (around 500ppm) id go through filters fast enough for the cost to still annoy me. for growing, since i go through about 90gal in 2+ weeks i learned to deal with my tap,.. and honestly it wasn't bad, i just add GH nutes to my tap water, some pH down, and thats it. They seem to love it pretty good.
 
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