I would like to share some experience with the Jabsco manual toilet.
In our Mahe nr 88, the previous (until 2007) version was mounted. We regularly had backflow, even in the first months. Maintenance
vinegar) and replacing valves works for some time, like 1 year. The problem is that urine and salt water
create insoluble salts, which adhere to the valves, causing the backflow. Even a long-term stay of the valves in cleaning vinegar does not dissolve it adequately.
This means you have to flush your urine very very well. Due to the holding tank
construction there is a kind of urine/slat water
container, being the volume of the up-going hose. To get all urine out, I guess you have to flush at least 20 times, which you don't do at night with guest.
The backflow is not very nice, especially with bigger waves the brown stuff will be all over the heads.
The backflow has been solved
the new version of the Jabsco toilet. This is nearly the same as the previous, but includes a "twist and lock" pump handle. This works very well, since then we have had no backflow.
I guess this new version has been specifically developed to prevent backflow.
It cost 150 euro, but this includes a new set of valves which you need at some moment anyhow. Plus you have a lot of spares.
----- Anybody want to purchase
a Jabsco toilet, previous model, used for 1 year, in good shape? ------
OK, then the sqeaking problem. Especially when you add vinegar to the toilet, it starts to sqeak. Nice for the guests at night. Plus you get the feeling the sound must be scoring the cylinder.
We tried a lot of things.... Vegetable oils, baby oil
, vaseline. It all works for a few days maximum. If you take the cylinder apart, and apply vaseline, it might work a few weeks.
Now we found a solution with little effort. Yes!
Get a small bottle of coconut oil
. This stuff is a white solid until 35 degrees centigrade, transparant and fluid above that. Since we are normally sailing in shitty climate, to melt the stuff we just put the bottle in front of the hot air from the heater.
Then pour a watery fluid of over 35 degrees centigrade (e.g. body temperature) in the toilet. This yellow fluid can be produced by drinking an adequate quantity of beer
. Add some coconut oil. Then flush softly, giving the coconut oil the time to solidify on the cooler inside wall of the cylinder.
And presto, problem solved
for a few weeks.
If you apply for patent, I want half of the earnings.
I would not choose an electric toilet myself. It is heavier, noisier, more expensive, takes electricity, and will break down more often than the manual version. Plus it requires fresh water, the weight of which makes your boat slower.
I am considering to change the holding tank
hose lay-out. Maybe by adding a valve (or two-way valve) which allows the water to exit immediately from the toilet without passing through the holding tank. Solves the urine-issue mentioned above. Maybe less smells as well, although this is not really a problem.
Happy 2011, with many nautical miles,
Jef and Marin