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|Holding tank in 1973 Swinger RV||Brenda||6-16-08|
|We have drained our holding tank or at least it says we have, and then we have our fresh water backing up into the bathroom, is there another drain somewhere?|
We purchased the RV from a widow who could not give us a lot of info, as it was her hubby who looked after everything.
Brenda in smalltown, Alberta
|Re: Holding tank in 1973 Swinger RV||Dave||11-13-08|
|You probably drained the "Black tank".|
There are two tanks Black = toilet and gray = sinks and shower
At the drain you should have two valves a large one for the black tank and a smaller one for the gray tank.