Originally Posted by Revschuette
Just a quick question. When using the black tank flush, do you need to be using a water psi regulator ...
I do use a water pressure regulator on the black tank flush.
Primary reason is better safe then sorry.
On our unit the black tank flush hose is located in the underbelly so it's not easily accessible and looks to be the same stuff they use for the water system.
There's no decals indicating different water pressure limits on the black flush, so I'm guessing it has the same limitations as the rest of the water system.
On our previous trailer I blew the relief valve on the black flush due to too high water pressure at the campground and the valve was located inside a wall, what a mess.
That's just what I do, for whatever it's worth.