I have been pulling my hair in trying to fix the problem with the sea water
flush for the Lavac
toilet on my sailboat. Any suggestions will be much appreciated! I've had this boat for nearly two years and the toilet has been working fine until this spring. It began to get harder and harder to draw the flush seawater in, and eventually there's hardly any water
being sucked in at all. I've pretty well taken apart the whole system, multiple times, to find the root cause but so far no luck.
- The same seawater intake also feeds the Lavac
in the forward head
, which works fine, so intake is not a problem.
- The inlet hose runs from the seacock and loops to about 5 ft above waterline and to the toilet; the height seems reasonable.
- The inlet hose goes through two right-angle joints. The clamps are tight and there's no air leak that I can detect.
- There's a small red plastic plug
inserted into the hose at the top of the loop and I assume that's the bleed value. The bleed hole must be very small as I can't see it. In any case I can detect no air leaks
- The Lavac seems to work fine and draws a vacuum just like my other head
. The seat gets sucked down and stays down for 20 seconds or so. But little water gets drawn in, and the bowl stays empty regardless of how many strokes I pump.