07-20-2021, 09:37 AM
It is for the waste tank flush. In it’s original config there is a tee in that line because there is also a flush fitting at the top of the tank. The tee allows you to flush from the top or the bottom. What you have is a modification by a previous owner.
Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home )