kfp673 wrote:
Just a thought as I am thinking of a solution for us as well... Most water pumps have a bypass already installed for winterization with a short cut hose designed for pumping antifreeze. If one carried an extra 40+ gallon bladder, could you not use a full length hose off that typically short hose connection and run it to the bladder? Then just flip your valve from the internal tank to the external tank when needed? Anyone see any downside to that concept?
My class C had the 2 way valve on the pump inlet: 1 = get water from fresh water tank 2 = suck in antifreeze. Unfortuantely, my cheap Forest River Sales travel trailer does NOT have it. Otherwise (if connections on the suction side can be made, and more so if spare water is not substantially lower (can only suck up that much), that would allow to USE the spare tank, but NOT to FILL the fresh water tank, unless you now also connect a trailer faucet and run the line back into your freshwater fill connection.