I find it interesting the time and effort some people will undertake to look at a water tank. After several years (11+) of camping I pretty well know how much water is left without looking. There's several clues. One how the pump is working (I have a hand pump rather than the 12 volt electric pump). How long since I filled it.
I also have the habit of filling the fresh water tank before leaving home and again when ever I dump the gray water tank. Most dump stations have fresh water.
Since I don't pump gallons of water to wash hands, do dishes and take showers it's a non-issue issue for me. If I really want to know the status I can move the curb side dinette cushion and look.
Byron & Anne enjoying the everyday Saturday thing.