If you can turn the pump down a lil that wont hurt. How often do the drip rings run or are they 24/7?? Just looks awfull "wet", even the leaves have this like "I want to dry out a lil" look on them. I can understand the DIY tent, do you have air circulation in there like an ossilating fan?? Be carefull with the tin foil as wrinkles can create hot spots and burn the plants.