Welcome to the forum! You will have 2 grey tanks and one black tank. The 2 by your main dump line will be for the black water (should be black handle) and the bathroom shower and sink (grey handle). The other handle will be for the kitchen grey tank that holds the water from the kitchen sink.
Using the little monitor lights is iffy at best as they are historically inaccurate in most cases. I dump black first, kitchen then bath grey tanks. Wait until they are almost full, particularly the black tank, so that there is plenty of water to push out the contents. You dump it first followed by the others so the black tank contents aren't just sitting in the line "percolating (smelling)" until the next dump. Don't leave the dump valves open as that will cause you further problems.
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
|