DIY Doctor

Concealed Cistern Flush Valve Leaking into Bowl

Postby Mrt32 » Sat May 02, 2020 1:15 pm

Hi guys,

I have a concealed cistern toilet with a Gerberit dual flush valve and Gerberit fill valve. I recently replaced the fill valve as it was squealing, but ever since I reassembled the system, water has been leaking into the toilet bowl, I presume through the flush valve. And no amount of cleaning it, checking the flapper or jiggling it around will fix the problem.

Wonder if anyone might have a bright idea as to what the problem might be?

Have attached a few pictures to show as best I can what I’m dealing with.

Cheers!

M
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Mrt32
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Postby stoneyboy » Mon May 04, 2020 9:38 pm

Hi mrt32
Assuming you did not disturb the flush unit join in the cistern then the issue is that the plunger is not seating properly. You need to check the washer and seating and that you have not accidentally moved the central mechanism - it is adjustable
Regards S
stoneyboy
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