Another Jabsco Problem-gctid388604

[Raymond14]

I do not have the model number of my Jabsco manual toilet. The problem ( I am hoping others have had it too ) is two fold. When in the "fill" mode, water does not come into the bowl ( only a bit ). I do not suspect a problem with the seacock, because the other part of the problem, is when I switch modes to vacate the bowl, it does not really move well in this mode either, so I am adding water from the sink. It seems to operate ( evacuate ) better than it intakes, but neither mode is really good. One seasoned boater said it is a newer toilet . I have had suggestions regaring the joker valve but nothing concrete and I have no owners manual or diagram to go by. Any suggestions or help would be great. Thanks

[Guest]

This LINK may help you understand the parts of your head.

Chances are good that you just need some silicone grease on the pump seals.

[Guest]

If it is a newer Jabsco it may be a simple pump seal issue that blues46 suggests.

If my pump starts being squeeky or pumping gets slower, with the pump in the up position, I unscrew the pump from just under the handle, remove and lather the seal with white lithium grease and replace.

It works much smoother and pumps a greater volume of water.

[Raymond14]

Thanks for the help. Turned out I needed a joker valve and I replaced the big flat gasket under the pump handle housing.