|
I also have two black tank valves. One up stream before the long crossover tube to the dump valve on the driver's side. There are two reasons for two valves. If while driving you damage the long crossover pipe from the tank to the dump valve on the driver's side there won't be anything leaking as long as the upstream black tank valve is closed. Next reason is so that if you are camping in freezing weather, the long crossover black tank line doesn't freeze since it is not heated like the black tank. If the fluid freezes inside the long crossover tube you can't dump your black tank until it thaws. When you dump, open the driver side dump valve after connecting to the dump station and then open the upstream black tank valve on the passenger side which also creates a greater pull from the black water to help clean out all fluids/solids from the black tank. Then close the upstream tank valve and allow the fluids to drain out of the long cross over tube before closing the driver side black tank valve.
__________________
|
Thor Forums
