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MainerBob's avatar
MainerBob
Explorer
Feb 10, 2014

Black tank flusher

My flusher connection has a label saying the black tank dump valve has to be open when using the flusher. I have been closing it with the flush turned on in order to get some water in the tank, and then I open the valve to get more water moving. AS long as I don't completely fill the black tank and burst it, am I in any danger with what I am doing?

Also, once it is clean, I run the flush for about 3 minutes to preload the black tank with water. Okay?