city water inlet.
i am almost posative i blew the o ring on it while winterizing... my question is do i need to replace it? We are seasonal so we only use city water not fresh water from tank.Thank you
Forum Discussion
hohenwald48 wrote:
I think the check valve is required by most public health departments to prevent backflow into the public water supply. That's why the manufacturers have to put them on.
Well I have to admit that's pretty imaginative reasoning I've never heard of before! :S
Fact is, a trailer's water system wouldn't pressurize if the city water inlet didn't have a check valve to prevent the pump from forcing water OUT that inlet when no hose is attached, just as is the situation the OP is complaining about. The solution is simple - either make sure that check valve is working or seal that inlet with any one of various solutions suggested earlier in this discussion. Trailer manufacturers most often just stick a rubber dust cap on that inlet but I always replace it with a threaded 3/4" GH male plug that not only keeps the inlet dirt free but also seals it tightly in the event the check valve itself should ever fail.
