|I have a mystery of water flowing back into the toilet bowl of my new Jabsco toilet. The original toilet did this, so I of course replaced it, as well as new hoses. I replaced the polyethylene tank (that had numerous cracks) with a new stainless steel tank.
Inspite of my efforts, some of the liquids destined for the tank end up back in the bowl, with associated unpleasant odours. I checked the joker valve, and it still looks brand new. I pumped the bowl dry with the water intake closed, and still water somehow gets in.
Does anyone else have this problem? I've read about vented loops at the top of the discharge hose, but I'm not sure if this is necessary yet. Is this a venting issue?
Mark 3, Hull #636