Hi Peggie -flushing dry , but water level go up...

[Alex]

On my relatively new (3 months) Jabsco standard manual head , all works fine , except, lately 2 things ;1 . moving the handle up and down makes a lot of 'squiky' noise .2. after pumping the last few times with the lever to right-dry-position, the bowl empties , but soon water level slowly raises significally , not always to same level (but not to overflowing level).I dismantle the upper rectangular part of the pump , checked the rubber seal with the 2 metal parts .All looks as new , no damagge , no deposits.What might be the problem ?

 

[Peggie Hall/Head Mistress]

Sounds like you have two problems:

The dry/flush valve has failed, which is water rises in the bowl on dry as well as wet. It's a common failure on Jabsco toilets lately.The other problem has nothing to with the toilet, but your situation illustrates a problem that can sink your boat if it's not corrected: The dry/flush valve failure only allowed water to rise in your because your bowl is below the waterline--water outside the boat will always try to seek it's own level inside the boat through any hole through which it can get in. Too many people think that all they have to do to protect their boats is leave the dry/flush valve on dry. But dry/flush valves fail (so do people!)....as owners whose boats have sunk in their slips can tell you.To remove the risk and keep water from rising in your bowl no matter where the dry/valve is set, install a vented loop in the head intake that's at least a foot above the waterline any any angle of heel...it goes in the line between the pump and the bowl. Your toilet is still under warranty, so contact your local Jabsco for either a new toilet or a replacement valve. He'll prob'ly have vented loops too.

 

[Ron]

A twist to this problem ...

DonnaMy Jabsco toilet on a C320 (less than 1 year old) seems to backfill slightly after a flush, but from the holding tank. Somehow I don't think that's due to the wet/dry valve. Could it be the Joker Valve allowing back flow? (Is the Joker Valve supposed to prevent backflow?)--Ron