Just started to hate Hydro just a little... But I learned a lot this grow... Today I noticed the water level in res was very low, but as I poured in water it didn't seem to get higher... I then realized the system was clogged.. I had to take it apart, and remove the roots from a couple of holes to let the water drain.. I flushed the pot thoroughly to make the sure the water was running properly through, and to get rid of all still water... I then had to fill the res with fresh water and new nutes... I'm going to get myself an airstone now so the water doesn't need to leave the res... The drip ring is excellent in the beginning but soooo annoying in this late flowering.