Add your own 1 way check valve to the water line on the inlet side of the pump.
Rv water pump check valve failure.
Look for cracks splits or rot.
While i m talking about check valves the water heater in our new fifth wheel had a check valve go bad.
The water pump on an rv is an on demand system.
The rv water pump is what supplies your unit with an on demand water source.
If the lines are damaged they will depressurize the water pump and encourage it to run.
Check amazon or rv water filter store for options.
Go whole hog and replace the pump itself.
The valve is designed to let pressured city water enter the rv s plumbing system when hooked to a charged hose bib via your water hose in an rv park and prevent the water pump from pumping water out of your potable water tank onto the ground when not hooked to a charged hose bib.
Extensive periods of storage in hot summer weather down south may also shorten the lifespan of an rv water pump.
The main reason for rv water pump failure as with all rv water system components is being left for the winter with water in the system.
Install a new check valve and make sure the arrow is pointing at the freshwater tank.
When rv water pump troubleshooting check the label on the pump to see what the gallons per minute and psi levels are supposed to be at.
30 psi is standard but many pumps can be adjusted.
Now check your rv water pump again.
Every time we used the hot water we would hear a buzz.
This is usually on a tube hose connecting the water pump to the freshwater tank.
If that s not it inspect all of the water lines in the unit.
Water pumps almost always run on 12 volt dc power.
Tips to minimize rv water pump noise.
The pump and the check valve were still working when we sold the rig.
For the most part 12 volt electric water pumps have proven to be quite reliable and long lasting.
Step 3 connect the other end of the valve to the rv water pump and make sure it s a good fit.
You can repair a damaged.
So it only cuts on when needed.
A water pump pressurizes your water pipes to a specific preset psi or pounds per square inch.
Depending upon the size of the pump you will have different pressure levels and gallons per minute supplied into your unit.
But that s another tip of the day.