Check valve location in Thor Majestic 23A
I have a 2015 Thor Majestic 23A and it has a leak.
I suspect the city water check valve; i.e. there are two check valves, one from water tank and one from city water intake.
I cannot find either, after removing all the panels. Thor only gives a generic plumbing diagram showing how things connect, but not where they are. The city water connection is on left rear side, and appears to wind its way under shower and rear bed, but there is no obvious way to get at it.
I also cannot 'see' (after removing the access panels) where the inside water tanks check valve is located.
I fear it will be thousands of dollars for a dealer to fix this, for replacing a $10 part.
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