Thanks VinceU, Took a look under the bed. As you state, on the suction side of the pump there is one line coming off to introduce anti-freeze and leads to a valve. I have the two way valve, pointing the handle toward the anti-freeze line does exactly what you indicate, sucks air. Turning it inline with the tank line, again nothing but air. I tried a bit of a work arond by turning the pump on for a second with the city water line hooked up. This seemed to work the pump like I would expect. The pump ran for second and shut off. I turned off the city water line, switched the pump back to the on position and no noise. Opened the faucet, pump kicks on, water flows for just about 10 seconds, then no more water and the pump continues to run. I keep feeling like I'm missing something. A shut off, or valve turned wrong ect... But everything works perfectly with the city water connection, but with the enclosed underbelly there's no easy way to trace the lines back to see. Thanks again for your input, thankfully it's not keeping us from tryig out the new camper. Keep the tips coming, they are very helpful. Best regards, Ray
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Ray & Barb
2017 Chevy Silverado 2500HD 4x4
2020 Flagstaff 26 FKBS
2007 Harley Electra Glide Classic
:iwo
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