Okay, went on a trip for the weekend, hooked up to city water with the fresh water tank near empty when we arrived. Morning time... water had come out the filler overflow and the fresh water tank was full. It also seems like the water pump kicks on for 1 to 2 seconds every 10-20 minutes with no valves on. I get the issue of the debris and the check valve but after owning this rig for almost a year and a half already, using a water filter, I am suspicious of the water pump.
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