[morscuba]

YEP!!!! Same symptoms as yours. After two pumps and a bunch of shoulder shrugs, I got in the basement and started checking connections. I had a lose hose connection on the supply side of the pump. I was pretty amazed that it did not leak a drop of water, but would only bleed the pressure off of the tank. I ended up cutting the hose and replacing the crimp clamp with a screw clamp. Hope thats it. Good luck