City water gets into fresh water tank
When I hook up city water to my travel trailer the fresh water tank slowly fills up. It will fill to overflowing in about two days. Is the water going through the water pump to fill up the fresh water...
Forum Discussion
Sounds like a bad check valve, or faulty regulator, you are using a regulator on the city connection, correct? Only places I can think where it could be backfilling is at the water heater, or at the pump. I haven't studied the plumbing system, but if you are on city water, is the pump not needed?
From my experiences with house building, which included plumbing and electrical, if you are going to put pressurized water into a standalone system that uses a pump and holding tank, I would place it after the pump, with a check valve to prevent water from back flushing into the tank. Now that I think about it, the water heater is post pump, so only place I would need a check valve is at the pump, on the outlet side, so that water pressure built up by the pump stays when the pump is off.
Have you checked to see if your system bleeds down when the pump is off and not hooked to City?
From my experiences with house building, which included plumbing and electrical, if you are going to put pressurized water into a standalone system that uses a pump and holding tank, I would place it after the pump, with a check valve to prevent water from back flushing into the tank. Now that I think about it, the water heater is post pump, so only place I would need a check valve is at the pump, on the outlet side, so that water pressure built up by the pump stays when the pump is off.
Have you checked to see if your system bleeds down when the pump is off and not hooked to City?
