Most tank level sensors work properly one time, The first time, after that stuff sticks to them and they give you a false sense of "Full" when in fact they may only have 10 or 15 gallons in them (Assuming a 40 gallon tank)
You may need nothing more than a good sensor cleaning. How to do it is fairly easy, and there is not much in the way of cost, however I'll leave the description of the process to the forum experts, in this, I'm not one
It is a Coachmen Classic. Do not know how many gallons it holds. The sensors show empty when I dump, I usually run water thru it though and it cleans it up. Would love to go a week or more, before dumping. I did notice that the tank is shaped like a wedge, sensors are on the the deep end.
So it may be reading full, when you still have plenty of space left. Do the tanks have a spill over, or is it totally contained?
Some RVs have the sink in the bathroom drain into the black water tank. If that is the case for your RV you might just have to educate everyone about not letting the water run unnecessarily.
Some RVs have the sink in the bathroom drain into the black water tank.? If that is the case for your RV you might just have to educate everyone about not letting the water run unnecessarily.
Yes -- that's the way my Tioga bath sink drained. I didn't realize it for at least several months after I purchased.? Once I realized what was going on, I adopted a boondocking procedure to lessen the use of the bathroom sink. For example, just washing my hands or brushing my teeth -- always in the kitchen sink so as to drain to the gray tank. I even had a little reminder on the BR sink to remind me to use the kitchen instead.
I asked several dealers and service personnel and no one really had an explanation of why they wre plumbed that way. My only idea was they wanted make sure the user drained "X" amount of water into the black tank to keep the solids in suspension.