Forum Discussion

DutchmenSport's avatar
DutchmenSport
Explorer
Sep 16, 2018

Another Black Tank Thread - photos tell the story

I've been a member on RV.net for what seems like eons now. I've read and commented on, probably, hundreds of posts about black and grey tank dumping. I've always been an advocate for flushing the blac...
Seeking Advice
wa8yxm's avatar
wa8yxm
Explorer III
Sep 17, 2018
If you need to clean the tank.. .Like for winter storage.. The Flusher. or Rinser or Tornado or multiple back flushes. Then fill tank with 1/2 cup Calgon water softener 1/2 cup Dawn (Regular not anti-bacterial) dishwashing liquid and 1/3 tank water. Drive for an hour and then dump again. Sensors should show full (Of soap bubbles) and as they pop EMPTY at last.. at least mine did.

I now full time so I do rinse a bit.. but more for tradition than anything else.

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,174 PostsLatest Activity: Nov 02, 2025