How do you switch between holding tanks.
This might be a dumb question. I just purchased a new trailer and I noticed on the display panel it has two black tanks and two grey tanks. The exterior only has one drain location, with two pulls,...
Forum Discussion
The OP said the "display panel" shows 2 black and 2 grey tanks. I'm pretty sure that just means the manufacturer used a panel with extra display lights but that the RV only has 1 grey and 1 black tank. My TT panel shows 2 grey tanks but we only have 1.
