Adding a valve on the toilet?

plasticmaster wrote:
Just to clarify, this is our second camper. My first camper and this one both have 30 gallon black tanks. I never trust the sensors to tell if it is full. I shine a flash light down the toilet to tell. We're a family of four. My last camper, we could go around 8 or 9 days before the black tank would get full. This camper is about 4 days. Exact same toilet usage practices, and yes, I make sure I have a full black tank before dumping it. The difference is that for the quick moment that you press the pedal, a tremendous amount of water goes through the toilet, whereas only a small amount went through on my old camper. And yes, I'm using a pressure regulator on the park water spigot before it comes into the camper. Basically, I want to dial down the amount of water that goes into the toilet so that it behaves like the toilet in my old camper. I hope this makes sense.

Are you not able to tell the folks stepping on the pedal to not step as long? It sounds (to me) that you have a very efficient system and it's just a matter of making the necessary adjustments on your part without any hardware changes on the campers part. It you used to fill the 30 Gal. black tank in 8 or 9 days then you should also be able to go 8 or 9 days in your new coach with a 30 Gal. black tank. It's nothing more than learning a new routine.