Fuel bulb failed to create suction last time I had the boat out. I pumped it about 100 times. Checked hose clamps etc and had a spare bulb with me. Swapped it out and still not working... Had to remove connection at the tank and stick the hose in the tank to get it to prime. Tried to go fishing today and same issue. I removed assembly from the tank to make sure uptake hose and filter wee not clogged or faulty. Bought a new bulb and it seemed to work at the house... At the lake I had to crimp the fuel line between the bulb and the water filter. I get the idea that these cheap bulbs are not cutting the flow off at the one way valve? I checked the bulbs and connections with soapy water to check for leaks. Nothing showed up.