question about dwc bubble tubs 38gal

This may be stupid, this may be smart. I have a 4x4x7' tent with two 38 gal tubs in there, 1 netpot per tub.
I wanted to be able to fill it up and let it do its thing for a week, then at end of week add water, check EC and adjust PH if necessary. Would this work to keep things more stable? I understand that "stable" is dependent on perfect EC amount to make it stay the same as the ph falls or rises. I just didn't know if by using a 38 GAL tote versus the 12 GAL tote im using would help be less daily maintenance.

Appreciate your input.

I say no, not less maintenance just more water

Ya need to check it frequently, if it never changes, then yer fine, but it will

Mine in flower would drink over a gallon a day in a 5 gal bucket, so levels dropped a lot

I'd suggest start in the 12 and move upto to 38 as needed

Plus, that's a lot of water to bubble in 30+ gallons to splash the net pot

Geez thats big, I use a 27G for my res in rdwc.I dont see why it wouldn't work though.I always get leary with all that weight.Is it gonna hold.lol

The 12 only holds like 5-6 gallons with giving it enough room under the netpot. I was thinking 27gal tub but they are only 3" taller than the 12 gal. Granted the 38 Gal is much larger, I think for a veg plant that was 24" before flip it might do good for it? It drinks about a gal a day

Aviatorshades said:

The 12 only holds like 5-6 gallons with giving it enough room under the netpot. I was thinking 27gal tub but they are only 3" taller than the 12 gal. Granted the 38 Gal is much larger, I think for a veg plant that was 24" before flip it might do good for it? It drinks about a gal a day

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Should be no problems,water temp is what you gotta watch so completely shield the tote from the light.

And those yellow kids are NOT light proof

BobThe420Builder said:

And those yellow kids are NOT light proof

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OMG tell me about it!
Ended up wrapping 2 layers of mylar on top. works well

If you want to leave it for a week to do its thing then your going to need a top off reservoir and a pH doser lol.

mr4tune said:

If you want to leave it for a week to do its thing then your going to need a top off reservoir and a pH doser lol.

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How do you hook up a ph.doser? I was going to use a elevated reservoir with a float valve inside the plants tub to keep topping off with 5.7ph

I've personally never used them as I'm home 24/7. I think there are some cheap DIY alternatives out there. Not sure what the maunfactured jobbies cost...

Personally I wont go outside of 5.9 - 5.9 otherwise your either locking out the cal or the mag. Thats just me though. Late flower it doesn't matter obviously. If I need to leave I'll set them at 5.6 and I know I have 3 days before they hit 6.1 and I need to drop.

Take into consideration I have 10-site systems and they only hold 30 gallons of nutrient solution each. Each system will burn through a 25 gallon top off reservoir in 4 days. You've got more volume and less plants obviously so your drift will be allot slower. You can also steer your system pH drift by setting your top offs allot lower than your systems to slow the drift down if a doser is too costly.