-
the bath shouldnt just drain if the saniflo is switched off. the water should just stay in the bath...
Water wants to find its level. Assuming it is all connected to the same waste then the level of the water in the bath will be quite a bit higher than the level of the water in the Saniflo and the toilet.
But that would assume that all of the waste (including the bath) goes through the Saniflo. No sane setup would have that surely...
i agree it does sound a bit fishy but not completely beyond the realms of impossibility. the bath shouldnt just drain if the saniflo is switched off. the water should just stay in the bath...