2 Black Tanks?

[goose1971]

We have a 2015 Montana High Country 370BR. The convenience panel shows 2 black tanks, but I only have 1 black dump valve. Is there a way to switch between tanks? Thanks for the help

[AZ Traveler]

The panels they put in are used for multiple different models. Some have 2 heads and 2 black tanks.

[goose1971]

There are 2 black tank level indicators, Black 1 showing full, Black 2 showing empty, any ideas?

[AZ Traveler]

Black tank gauges never work well as stuff sticks to the sides of the tank. With a single black tank - tank 1 shows the tank you have. Black 2 is not functional except on rigs actually outfitted with a second black tank. If you only have one head, you should only have 1 black tank.

If you flush and rinse your black tank well the indication will be better for a short period. When we are out, I dump and rinse out black every 7-10 days regardless of what the indicator says.

[BB_TX]

Having only one bathroom I would not think it would actually have two black tanks.