Forum Discussion
Hank_MI
May 30, 2018Explorer
jplante4 wrote:
There's a check valve built into the fresh water pump that's stuck or failed. You can try putting water into the fresh water tank and running water through the pump. That may flush out the crud.
You other choices are replacing the pump or adding a stand-alone check valve (a.k.a. backflow preventer) on the pump fitting.
It still shouldn't come out the syphon tube unless the valve was left open. Assuming pump check valve failed it would back up into fresh water tank.
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