I have a new 2020 Salem and noticed something weird during our first outing. We used the bathroom sink more than the kitchen sink but after only 1 day, the kitchen sink was reading full. Then after the third day, the grey tank was still reading empty but we would hear gurgling sounds come from the kitchen drain when using the bathroom sink. For sure both of the drain valves were closed so they shouldn't be connected right?
It's possible that the sinks got tied to the same tank, but that's not likely. It's probable that the vanity sink is tied to the black tank.
The kitchen sink uses a lot more water than the vanity sink, so it's possible that a few uses could fill the galley tank.
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
I have the 26DBud. After doing some additional looking I learned that the kitchen sink is tee'd into the bathroom sink drain so they are connected. I guess both sinks are draining into the galley tank and only the shower is on the grey tank?? I don't love that since we almost never use the shower but do use the sinks frequently. I guess the gurgling sound was because the tank was about full??