I have recently added several upgrades to my rsm 130d, Chiller, Media Basket, Tunze 9002 skimmer, and all of a sudden the water level in the center chamber where the skimmer is has dropped so low the return pumps are pushing out a lot of air. If i turn the pumps off the water level goes back to normal in the center chamber but once turned back on level drops all the way down again. I have my pump to the chiller in that same chamber below the skimmer and the return line from the chiller goes into the area with the return pumps. Any help of advice would be greatly appreciated