The "joker" valve on my Sanimarin
electric toilet is a joke, it's just a flapper valve that almost always develops a slow leak and allows backflow into the
toilet. Also, unlike other
electric toilets the valve isn't incorporated into the toilet, it's just attached to the outflow pipe and then the other end is attached to the pipe that goes to the
holding tank. I've tried 4 different types of flapper style valves, although some
work longer than the Sanimarin version they all eventually start letting the toilet slowly refill with the sewage that was in the line to the
holding tank (which is above the toilet so it has some head).
Ideally I'd like to switch to a real duckbill style joker valve like
Raritan and
Jabsco use. However they all require a housing which I wouldn't have. Does anyone know of a "universal" duckbill style joker valve that can just be connected inline to the outflow line (it's a 1.5" line)? Barring that, any better solution than a flapper valve? Thanks.