Originally Posted by Randy nSteff
my electric toilet also doesnt flush properly could this be tied to the same issue?
If the lights on your toilet are red, then yes it is possible you tank needs a good cleaning.
IF you can get access to your black tank for a good visual check to see where the tank sprayer is located. It is probably clogged as suggested which is common. However they often mount them on the far side of the tank for rinsing but not necessarily for cleaning the sensor areas. I installed a second one and use quick disconnects. The sensor area is sprayed thoroughly now and no more problems.