I had a Lavac
on my previous boat
. Other than routine replacement of the seals
, the diaphragm, and the valves I never, ever had an issue in over ten years. It would pump paper without an issue. I fitted a Lavac to my current
boat and have been equally happy with the performance. Manual pump to a holding tank
mounted above the toilet and gravity feed to the sea. Keep it simple.....
If the gods smile then you might just achieve the right balance of height above/below the waterline of the bowl, position of the pump, height of the hose and size of the air inlet drilled into the top of the inlet hose that makes it all work like a treat and without excessive effort. Mine takes 8 strokes to flush, wait about a minute to let the vacuum drop away, lift
the lid and a further four strokes to empty.
I've had the joys of dismantling a Jabsco
style pump, chartered yachts with electric
pumps, had all sorts of unpleasant experiences with leaks
and dodgy seals
. As far as I'm concerned my Lavac keeps me safely separate from the smelly water. My next boat will have one.
In the Med you don't need a macerator so that's one less complication.