Originally Posted by comfun1
After reading this thread I am thinking about doing the following: at the end of each camping trip fill each tank with water softener and laundry detergent and use a garden hose to completely fill the tanks, then drain the solution in them just before the next camping trip. By filling the tanks completely the sensors would be sure to be cleaned.
Don't know if that would make things better or worse. I know it's not going to smell like roses to start with, but leaving your tanks sitting with water may not be the way to go.
I would stick to the "Geo Method" exactly and I think you would be fine. Don't forget the chlorine part in the method. Works very well. You may also want to look into a "Flush King". This way you don't have to run a garden hose into the camper. I've had one for a few years now and can tell you it works very well. I do not have a tank rinser on my camper which is why I purchased a "Flush King".