well are your roots not submerged all the time ? Is it drip to waste ?

How do you overwater in hydro drip ?

Look for another problem like the temp of your rez or the begining of root rot or cyano-bacteria. Posible PH problem is what I bet.

For anyone to really help you need to fill out the problem form then you will get some good advice.
LOC NAR on probation Reviewed by LOC NAR on probation on . Over watering with a circulating drip system? Is it possible to over water and water log a plant in a 5 gallon circulating drip system? It's my third grow in this system and my 1st problem with (all symptoms pointing to) a over watering / water logged dropping leaves. I previously ran the system 24/7 and had no problems. The current plant was transplanted, looked good for awhile, then developed dropping leaves on 24/7. For the past week, watering it twice a day for 30 minutes and sill dropping. Any other possible problems? Rating: 5