hi, i just got a 9005 with extention set in my sump, water level is about 5", i turn it on with the air closed, per instructions, and then turned it 3 revolutions, i can see water being drawn into the middle part of the reactor, and white foam forming there, but the foam does not reach the foam cup; the water inlet is wide open, but no water flows out from the water outlet, the water reaches about half way up the outlet tube. what is the problem? is my water level too low? there are also lots of micro bubbles in my DT since i started using the skimmer...any help is appreciated!