I'll never do that again
After 4 years of RVing, and just when I think I am getting the hang of it, another lesson is learned the hard way. I am in the process of putting the TT away for the winter. So I am pulling the an...
Forum Discussion
monkey44 wrote:
This thread sounds odd to me, I've had two campers, both had pressure releases at top on tank, and both had WH drain plugs at the bottom of the tank, and it drains out empty in about two or three minutes. Open HW faucet when draining.
When I fill it, I open the hot faucet in the sink until water flows out without popping or hissing ... then we know it's full and no air pocket.
Due to design of WH tank....
PRV is 'near' top of tank and when filling an 'air pocket' is established. Without the 'air pocket' the heated water will over pressurize and cause PRV to weep. (Water swells when heated..air pocket allows for that expansion)
OP.....
Reason system doesn't de-pressurize when you disconnected city water hose is due to check valves in system.
One inside that city water connection (so water doesn't flow out connection when using pump) and one inside pump (so water doesn't flow backwards thru pump when on city water)
