Thank you for your input. As far as my losing prime. I thought I had the answer by putting two check valves, one in front of each tank, so when I shut the engine off the check valves would hold the fuel in the lines instead of letting it back into the tanks. I ran the boat last Sat. Thursday I went into the garage and turned on the ignition and guess what no prime. Where did the prime go???
The check valves should have kept the fuel in the lines, right? I have a return line coming off one of the regulators but that only returns under pressure. One person wrote that he had to put another vent for his fuel that the caps were not enough. I have vents in the caps and two vents up by the driver seat and passenger seat(outside hull). Anybody have a good answer? To put the pump below the tanks I would have to pull the motor. There must be an answer the way I have the pump now.