jcubeta wrote:
OK, stupid question, but what is the "check valve"? Is that the blue-handled valve that I switch between "City" and "Tank Fill"? Because I figured that it might be (1) cheap, and (2) leaking.
Your pump may or may not have a built-in check valve. These valves only allow water to move in one direction. There is also one inside the city water inlet. A typical RV water plumbing diagram is below. A separate inline Shurflo check valve is below. Note that it is designed for use with hose/gear clamps and shouldn't be used with PEX. Shurflo has a rebuild kit for the integral valves but personally I would rather use a separate one of better quality.
Sorry, but due to the ridiculous Captcha "feature", I cannot get images to post at the moment. Somebody needs to fix that. :M
