Jabsco toilet question-gctid816034

[706jim]

Our new boat is now 10 years old. The Jabsco manual flush toilet was working great, but the last two seasons, it seems to back fill from the holding tank after a few hours. It doesn't seem to matter whether the toilet is dry or wet flushed.

There's a bunch of these units out there so I'm wondering if this problem is due to crystallized urine on a rubber flapper valve or something else.

And what can be done to repair this toilet.

[Ridgedown]

Buy a rebuild kit. It will come with joker valves etc. It will be not working because of the salt build up.

[diveguy]

I've never tried this but I wonder if a pot of hot water would loosen/dissolve the deposits around the choker valve. Hot but not boiling water so as not to deform the rubber.

[706jim]

It would be an easy mid season remedy if it worked. I'll give that a try. And will follow up with a rebuild kit. Hard. to believe our new boat is starting its eleventh season

[Nikko]

Rather than a rebuild kit, for almost the same price you can buy an entire new handle assembly already put together. Swap takes about 5-10 minutes.

[simo]

This is what I got after having the same issues. Piece of cake to swap out.

https://www.amazon.com/gp/product/B001794BS0/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

Here's a video of how easy it is to do this.

https://www.youtube.com/watch?v=p0wxX2789F8

If you're having backflow issues, get a pumpout first and flush plenty of water through before starting this job. The new one works like "buttah!"

[Patrevan]

This will do it:

http://www.ebay.ca/itm/191385876998

As some routine maintenance:

Try dumping some vinegar down and flush it, leaving the vinegar for while, before flushing with fresh water.

[Guest]

#1 Check the holding tank vent to make sure it isnt clogged

#2 If vent is clear, change the joker valve. I think it would be impressive if you got 10 years out of a joker valve. I change mine every year as PM. They dont cost a lot of money. I also keep a spare on board. Only takes a few minutes to change. Make sure you pump out first!

[706jim]

Thanks everyone! I'll tackle the job next week looks pretty easy

[706jim]

Replaced the whole pump assembly with the new locking variety. The old joker valve and base gasket looked fine FWIW.

The new unit locks down after use and should solve my backflow problem. As fr as a 10 minute install, more like 30 minutes due to limited accessibility in the tiny bathroom on my 246.