tjsolberg Report post Posted October 15, 2019 OK folks, I have a confusing situation. I'm not sure how this is possible, but, I have a 2006 Newmar Essex DP and when I hook up to City Water, I get no water. How I understand the water system is, when I hook up to city water, turning the pump on is not required because the pressure from the source is all I should need and the valve diverts the water past the pump. See attached picture for reference. Now for some reason, when I hook up to city water and turn the valve to City Water (Auto Override), as pictured, I get no water. To get water, I have to turn the valve to the Auto Tank Fill / Auto City Supply position and use the pump to get water from the tank while the city water fills the tank. Then if I don't watch it, it overfills the water tank and comes out the tank overflow. Can someone help me out here please. If I understand it correctly, for one, when the tank fills, there should be a auto shutoff valve to stop it from over filling and two, when I have the valve on City Supply, it should bypass the tank/pump and go straight to the sinks/showers etc. I do use a pressure regulator and keep the pressure between 40-50 psi. all the filters are brand new and I have checked all the lines for kinks. Is there a directional solenoid operated valve somewhere that may be malfunctioning that I'm overlooking? Any suggestions will be greatly appreciated. Also, another quick item, why does my pump cycle on/off when I'm not using any water? Faulty seal in the pump that is causing it to lose pressure? I don't have any leaks that I could find in the system. Thanks. again. R/ Tim 2006 Newmar Essex Water Source Selection Valve.pdf Share this post Link to post Share on other sites
hermanmullins Report post Posted October 15, 2019 Tim, My thought is a bad valve and bad check valve. Herman Share this post Link to post Share on other sites
