Originally Posted by nuggetmike
I need the water schematic for a BIG COUNTRY 2018 Need to see the location of grey and blackwater tanks The grey tanks are labeled only 1 and 2. I think i have a valve problem
What kind of valve problem do you have?
In your front pass thru storage there should be a big black pipe, it dumps into the black tank.
The pull cables going to dump valves do fail, not very often
Start looking where you hook the dump hose, hopefully the valves will be close to it.
Do you have a valve in one of your other storage bin?
Here's a picture of one in a different Big Country.