If you have a winterizing hose, you may need to close that valve, and open the valve that bypass the pump from the tank.
In this pic you can see two valves, one for the clear plastic hose, which is where you draw antifreeze from the jug when you winterize. The 2nd valve is on the main line to the fresh water tank.
In this pic the valves are in normal position.
Jim & Kim from Colorado
2014 Eagle 30.5 RLS
2015 Dodge 3500HD SRW 6.7L
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