Just installed 1100lb fly high sacs in my rear compartments of my 24ssv, I added a Tsunami 1200 to each bag and still using the stock fill system as well ( I have 2 fill linesgoing in to each bag,they fill in 5 mins) I am still also using the stock drain pumps, but the problem is when I fill the corner bag were surfing on when we start to surf it drains itself, I know that its bypassing itself thru the drain pump, so what do i need to do to stop this from happening?? Thanks.