Check valve on water system?
With out 02 Dutch Star, we are on our fourth motorhome since 2007. I think we've come across the "keeper". With it came all the manuals that talk about appliances and accessories but no owner's manual. So, I downloaded the manual. While it may seem well written, it is a bit deficient and too generic (in my opinion) in some areas. For instance, understanding the fresh water system. I do wish there were a schematic or "as built" drawing so I can better understand it. Every motorhome seems to handle fresh water differently.
So my question is this: Is there a check valve (to prevent back flow) on the water inlet?
The DS has only the one water inlet. Above and below it states how to "open" the valve to fill the tank with water and to "close" the valve when the tank is filled. After turning on a faucet, water comes out the inlet (back flow condition) about as fast as any firefighter would want on a Class A pumper (slightly exaggerated). I have temporarily (I hope) remedied the system by installing an inline cut-off valve on the inlet. However, this isn't as it should function.
I'm suspecting that there is, indeed, a check valve that isn't closing. Is my assumption logical? On a Holiday Rambler we had no check valve. I have no idea how our Airstream was configured since it's behavior was odd. Our first moho had a check valve. Your thoughts will be appreciated.
Byron Songer - fulltiming out of Louisville, KY
2002 Newmar Dutch Star on Freightliner/CAT, 2016 Lincoln MKX, Air Force One