Easy and quick extra rinse for black water tank

I installed the SaniCon unit on my coach and do this when I drain the tanks. Since the SaniCon acts as a third valve, it allows you to drain one tank into the other.

What I like about this procedure is that your grey water is typically soapy and is good for lubricating and cleaning the black tank. I usually drain the grey into the black tank three times when I'm doing a good rinse. Each time, floats the debris off the bottom of the black tank.