What Do I Do To Get The Water Level In The Over Flow Higher.it 11/2 Tubing Down To The Sump. If I Clog The Air Tube The Water Level Goes Down.can I Pumpair Into The Tubes And Adjust The Air Going In Here Are Some Pics The Noise Of The Water Fall Is Driving Me Crazy I Dont Think It A Pump Problem Becuse I Am Pumping One 1600 Gph And Other 900 Gph Bak Into The Tank But I Need To Bring The Level In The Over Flow Back Up Please Help.its Droping About 4 Inch On Both Over Flow Boxes.