How much water in a dwc?

I've read and heard others say just enough for the roots to touch. I'm using 5 gallon buckets with about 3 gallons of water. I change the water weekly and when I do I notice my plants damn near drink it all leaving hardly in the buckets. I'm on week two of flowering and used this amount the whole time. I'm just worried about getting root rot. As of now my roots are massive and white and doing fine. So should I lower the level of water and change more often or leave it alone?

Not sure what your saying. Aren't you topping off the bucket during the week?

I keep water about an inch below the bottom of the netpot and I check the level and adjust it every day.

I don't understand why you would worry about root rot in roots that live in water?

I change it weekly. And I'm trying to make sure I won't develop root rot so I'm looking into what might cause it to prevent it from happening.

As of now were all good. But if it was to happen I'd like to be able to tackle the problem quickly knowing how it happened. We're starting week 3 of flowering and doing good. Thanks for the replys

You don't get root rot because the water is aerated. The roots should be fully submerged.

You don't make the ebst of sense but it sounds like you don't fully understand how DWC growing is done.

You need to keep the water at a steady and predetermined level. It is good that they are drinking that much. It is important that you have some good bubble action in each bucket. otherwise, I think you have nothing to worry about. If you want to make sure, add a few tablespoons of regular hydrogen peroxide once or even twice a week.

You need to add back water and or nutes everyday, and keep it at the correct level. You need to attach some tubing to your buckets, and connect them to an outside the grow bucket. At the outside bucket you can see what your water level is, and by raising it and lowering it you can mix up your nutes in the grow buckets and get your ppm and ph levels.

Originally Posted by tip top toker

You don't get root rot because the water is aerated. The roots should be fully submerged.

You don't make the ebst of sense but it sounds like you don't fully understand how DWC growing is done.

Never mentioned anything about root rot from aerated. Don't think you read what was wrote! I said I'm trying to keep it from happening. And it makes perfect sense to try to prevent problems b4 they arise, it's called being on top shit.

Originally Posted by burrr

You need to add back water and or nutes everyday, and keep it at the correct level. You need to attach some tubing to your buckets, and connect them to an outside the grow bucket. At the outside bucket you can see what your water level is, and by raising it and lowering it you can mix up your nutes in the grow buckets and get your ppm and ph levels.

Ppm is around 1100 and ph is 5.5 aeration has been going since day 1.