I bought a Meyers HJ 3/4 hp Jet pump and installed it a few weeks ago with no issues. The pump stopped drawing water this weekend. I cannot see any leaks in the system. I've checked the foot valve and that looks fine, but wonder if the venturi valve is blocked. I took the housing off the pump and tried to vacuum and push a 6 inch potato skewer into the tube hoping that would do the trick; it had no effect. I wonder if any of you have