Water pump problem. leaking through a pressure valve

For "restoring the air pocket". The trailers water system only needs to be depressurized. The pump needs to be turned off, not disconnected. The city water supply needs to be shut off or water hose disconnected from the outside water supply (city water).

A) Then as it was suggested turn on an inside hot water faucet to bleed off the pressure. Then manually flip the aluminum lever on the water heater relief valve 90 degrees on the outside of the trailer inside the access door. Water will flow out of the relief valve. When it stops flip the lever on the relief valve to reset the lever. Close the hot water faucet you opened and then turn the pump back on or restore the city water supply. Then open a hot water faucet until it stops spitting air to restabilize the water level in the hot water heater.


or

B) Instead of using the relief valve to restore the air pocket, turn on an inside hot water faucet to bleed off the pressure. Then open the hot water low point drain for about a minute. This will also drain some water from the water heater without having to run outside to use the relief valve. Close the low point drain and hot water faucet. Then turn the pump back on or restore the city water supply. Then open a hot water faucet until it stops spitting air to restabilize the water level in the hot water heater.


If the relief valve keeps sweeping you may have debris (sand, calcium deposit, piece of Teflon tape, etc.) trapped under the relief valve seat. You may need to manually cycle the relief valve lever quickly a couple times to flush it out.

If the valve keeps leaking it may need to be replaced.

O.k. I tried putting an air pocket in the water heater as suggested above and it did not work. I tried just shutting the power off to the pump as well as completely opening up the system by disconnecting the output hose of the pump. Anyone have any other ideas?

Thank you for the tip and will try it this evening. A couple of clarifications:
1)"shut incoming water off", do you mean physically disconnect the incoming water line into the pump, or physically disconnect the output of the pump so the input to the water heater is open?
2) "open relief valve", "shut relief valve", There's no physcial switch that I'm aware of to open and shut (as far as I know). The relief valve seems to open on it's own when the pressure is too great.

stubblejumper wrote:
Pressure relief valve ??

Travel trailers have a closed water system so as the water is heated, it expands and out the relief valve it goes, Shut power off to water heater, shut incoming water off, open faucet in trailer, open relief valve until water stops draining out, shut relief valve and turn water and water heater back on. You have to create an air space like a pressure tank so the water has some where to expand to, you can not compress water but you can compress air.......hope this helps....

Pressure relief valve ??