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JPGator, the inlet to your water pump is the side that has the screen/filter on it.
I just solved a mystery of a freshwater pump kicking on every 20-30 minutes and run for just a second or two. My situation was a crack in the mixing valve for the forward shower. I knew I had a leak somewhere in that shower, so we didn't use it. I had the mixing valve replaced, and viola, no more cycling freshwater pump.
Jaybeaux
Ok. I’ll go over everything again in the morning.My fresh water pump running was two-fold...
1) my connector fittings have almost all been replaced due to leaking
2) air in the lines will cause the pump running too
Checks all fittings for leaks and open all (hot & cold) faucets, showers, toilets, etc and try to purge any air that might be in the water lines. Once your pump has quit cycling do not turn it off. Every time the pump is turned off there is a chance for air to get back into the line...
the mixing valve is the hot/cold control in the shower itself...Was the mixing valve under the sink somewhere or by the shower sump pump?
Thanks Douglee25. It turns on once ever 5-10 minutes for about a second.The water pump is independent of any show sump, AC unit, etc. It provides water to the water heater, any sink/shower faucet, and the transom hose down. Turn on the water system and trace the lines. If it's cycling every 10 seconds, the leak should be visible. Use a paper towel to wipe the fittings and you should find the leak quickly.
Gotcha. On my boat we have that dual purpose sink/shower deal but I don’t see any water leaking from the faucet.the mixing valve is the hot/cold control in the shower itself...
Was the mixing valve under the sink somewhere or by the shower sump pump?