Question about Liters/Minute of air in DWC

Hello all,

How many liters/minute of air do I need for a 5 gallon bucket DWC. I've been running 8 of them with a 25liter/minute pump. It seems like enough but I would like some hard numbers to be optimal.

Also, I've just read that too much air can result in PH problems. Anyone have experience with this?

Thanks

For 8 I would recommend no less than this 110lpm pump. http://www.calihydrosupply.com/Air_Pump_12_Outlets_112W_110L_p/AAPA110L.htm

More air doesn't cause ph problems.

mike91sr said:

For 8 I would recommend no less than this 110lpm pump. http://www.calihydrosupply.com/Air_Pump_12_Outlets_112W_110L_p/AAPA110L.htm

More air doesn't cause ph problems.

Click to expand...

That is fine for a single bucket.
If the pump you are using is like this one



Then don't use it for more than a 2 or 3 buckets. That design is shitty.

If you want to go with 4 or 5 buckets, using this type:

I am using one 110 liter per minute pump on four 27 gallon tough box totes, with 8 inch flat round airstones and I am getting hyper aeration with it.

I have found that the more saturated the solution is with bubbles, the less problems you have and the better growth you have.
Hope that helps.

GTS

Thanks for the help guys. I'll get another pump asap.