Forum Discussion
xctraveler
Aug 19, 2013Explorer
When staying in a campground for several days we leave gray open and black closed. Usually we close gray night before departure so wash water and luxurious shower will provide enough flush water to clear the hose after dumping black.
Third valve is a good idea. We have Sanicon pump which enables the same process. After dumping black we open both valves to let gray run into black for purge. Then dump black again before dumping gray. Putting a clear connection section in line lets you see when the black is running clean.
Third valve is a good idea. We have Sanicon pump which enables the same process. After dumping black we open both valves to let gray run into black for purge. Then dump black again before dumping gray. Putting a clear connection section in line lets you see when the black is running clean.
About Motorhome Group
38,708 PostsLatest Activity: Mar 06, 2025