Originally Posted by utah_utrup
I just had my maden voyage with my new Rockwood. When I was de-winterizing I notice the exact same problem as you mentioned above. I have the Dometic 300 or 310, I am not sure which.
Steve, Did you ever replace the Dometic with a Thetford?
I'm not Steve, but since this thread is so old - you might want to PM him with your question.
However, I did have the exact same issue with my Dometic toilet on my first trip of this year's camping season. I called Dometic directly. They agreed to have it changed under warranty (8 month old camper) and set me up with a local service center to take care of it (vs. my actual dealer who is 145 miles away).