Black tank says full but it’s empty
Fairly new RV. Have rigorously followed instructions regarding emptying only when full, keeping water in the bottom, using a black tank tablet. On a recent trip, I was surprised to see the black ta...
Forum Discussion
There is something stuck on one or more of the sensors, such as a piece of toilet paper. Lots and lots of flushing may dislodge it. Or not.
You could get one of those hose attachments that streams a fast jet of water and try blasting the walls of your black tank from the toilet.
Personally I wouldn't worry about it. When the toilet belches when flushed, it's time to empty it.
I had that problem in my last RV. It lasted nearly the whole 5 years I owned it. One day it just started working.
To flush the tank I use a timer. When five minutes are up, I turn off the hose valve which stops filling the tank with fresh water, and dump. Works for me. You can time how long it takes to fill a five gallon bucket with your hose on full blast, to see how long it will take to fill your black tank. Do the math using your black tank capacity. Shave about 30 seconds to a full minute off the time to fill it completely full and use that number on your timer.
You could get one of those hose attachments that streams a fast jet of water and try blasting the walls of your black tank from the toilet.
Personally I wouldn't worry about it. When the toilet belches when flushed, it's time to empty it.
I had that problem in my last RV. It lasted nearly the whole 5 years I owned it. One day it just started working.
To flush the tank I use a timer. When five minutes are up, I turn off the hose valve which stops filling the tank with fresh water, and dump. Works for me. You can time how long it takes to fill a five gallon bucket with your hose on full blast, to see how long it will take to fill your black tank. Do the math using your black tank capacity. Shave about 30 seconds to a full minute off the time to fill it completely full and use that number on your timer.
