cougsfan
Member
I have a 1998 WF331WM that I bought last fall. The previous owner stored it in a heated shop and never had to winterize it, and didn't even know how to. I am not so lucky. I used it once last fall before winterizing. I didn't use the water storage tank, and it was already empty, so all I had to do was drain the water heater and blow out all the lines with air to winterize the water system. This year I did use the fresh water storage tank. I am ready to winterize it and I can't figure out how to drain the fresh water tank. The Owner's Manual (which covers umpteen different units) says; "drain the water tank", and that is about the sum of it. The tank is at the rear of the unit under the bed. Their are 4 valves beside the tank; two look like ball valves, one is a 3 way valve (for sucking antifreeze in, I think) and the last one is a 180 degree valve on the same line as the three way valve. None of these valves drain the tank. I have tried all sorts of combinations of valve settings. (I can't see where any of these valves do anything. I thought they may be isolation valves to shut water off to different parts of the Motor home, but they don't even seem to do that) I crawled all over under the unit looking for a water tank drain valve, but can't find one.
Can anyone tell me the secret for such a basic task?
Can anyone tell me the secret for such a basic task?