water leaking through ballast pump

One of the stock pumps in my 07 Supra is leaking by and putting water in the bag by itself. What causes this? Bad impeller or ???

John- Check the solinoid valve for the bag that is filling under rear seat. There is a little black tab that acts as manual valve and should be pointed up in closed position. When open it allows the bag to fill.

I've checked that. It is in the closed position.... Thanks for the reply though.

BTW: It doesn't fill as fast as it would with that manual valve open.

Inspect rubber diaphram for debris

Okay, will do....

I removed the pumps and disassembled all of them. They're clean (for the most part) and no debris...

Any other ideas? The only way to keep water from coming in is to isolate it from the intake in the bilge.

I left the boat at Boatmate for a week having some work done. I had removed the bags and all other accessories from teh boat before I took it there. They water tested the boat when the trailer was repaired. When I got there to pick the boat up, there was about 2" of water in the center locker, and the carpet was completely wet in the rear bag lockers. I forgot to isolate the water when I took everything out.

Does it have one fill pump in the bilge for all three bags and three sprinkler vales (one for each bag) like the older Supras?