Quote:
Originally Posted by rockstarr4
Last outing in my 2014 Surveyor SC 189 I was connected to city water and noticed that my fresh water tank inlet was leaking water out of its fill vent. I concluded that there must be a check valve stuck open somewhere between the city water inlet line and the fresh water tank outlet.
Can anyone confirm this is a logical possibility? And where might I find this check valve? Anything else to consider as a cause for this problem?
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It is an often discussed topic with hundreds of prior posts about this.
The check valve is built into the pump's head.
Also, make sure you are using a regulator when on city water as high pressure can/will overcome the check valve.
And... do not use the on-board pump when on city water as pump cycling can cause the check valve to open.
There is another possibility that will fill the fresh tank when on city water and that is if you have a Showermiser valve in your shower. It is designed to return water back to the fresh tank (waiting for the hot to get there) instead of running it down the drain when boondocking but it returns the water to the fresh tank even when on city water. Setting the Showermiser valve to the correct position will keep it from filling the fresh tank although, there have been posts where folks use that option to actually fill the fresh tank when needed.
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