This is it. One or the other. Either don't flush toilet overnight and see if water level has reached internal overflow level or turn off water to toilet and see if cistern slowly empties itself. First one = inlet valve second one = Flush valve/flush valve seal. Could be both but sounds unlikely with brand new stuff. Not uncommon to see both valves gones after 3-5 years on over-engineered garb.
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- Thread starter Leigh Florence
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View the thread, titled "New cistern leaking into pan" which is posted in UK Plumbers Forums on UK Plumbers Forums.
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This is it. One or the other. Either don't flush toilet overnight and see if water level has reached internal overflow level or turn off water to toilet and see if cistern slowly empties itself. First one = inlet valve second one = Flush valve/flush valve seal. Could be both but sounds unlikely with brand new stuff. Not uncommon to see both valves gones after 3-5 years on over-engineered garb.
Margaret? Thought his name was Jon or is there something Jon wants to share? 🙂
Thanks everyone so much for engaging with this and me. I won't turn the macerator off, thanks rpm. Have you seen Margarets photo!
Seen it so often I don`t notice anymore but yeah fair point 🙂
That Silver braided flex should have an isolation valve to the right of your photo and will look like this
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And “snap”
Think Leigh is stressed mate and rightly so.
Trust you to bring football into it! 😉
Exactly !!!
You're right! Duh. Not a royalist even though i've been watching the Crown. BTW i agree with you now! Never again.
Hard to say without knowing what it looks like, but my son has a toilet which had similar leak. Not new, but all modern, plastic, click-together stuff. It has a plunger with rubber seal going over the hole in the bottom, plunger lifted to flush. After trying many things, I noticed the plunger was not falling freely inside its cage. The rubber seal was slightly fouling the cage. Trimmed about 1.5mm off the seal all round, and that cured it. Maybe yours has something similar?
Update: It's clear that everyone thinks flush valve and can't be anything else. And that it's the washer in the flush valve basket thing at the bottom, not the up and down bit that usually goes wrong after a couple of years. So today their engineer came back and used Plumbers mate putty to try to seal this. I am waiting to see if it works. Feel very angry. It's new, had this replaced four times now and it doesn't work, it just doesn't work. And they have used sealant to try to make it work. Would any of you accept this if it was your bathroom? How does this affect my warranty? Should i ask them for something in writing. I want to ask them to change it over for a Geberit, but i will probably have to have another cover panel cut as dimensions and positioning of holes needed different from one manufacture to another. So more disruption and i just want a bathroom that works in my one bed flat! Their product doesn't work. Simple as that. Completely new and doesn't work.
Thank you rightjob and rpm for replying.
Is anyone able to tell me how i can work out if a different manufacturer will for sure mean the flush panel and waste pipe position will be different? Do i just have to study the technical drawings and try to work it out? I phoned Geberit and they said they couldn't comment on other manufacturer models. I can't bare having to cut a whole new panel again. Photo attached.
Who would be an expert in WC frame concealed cisterns (across brands)? Is there a plumbers shop i could telephone does anyone know?
Update. 3 Grohe WC frames installed and removed. 5 flush valves, 2 with putty put around. Couldn't stop leak. Replaced with Geberit. No leak everything working perfectly. Geberit WC frame was 3mm deeper and the stud wall had to be knotched out. The flush plate was wider and not as tall, so new cover panel had to be cut so as to not leave a hole, but all other holes for bolts, waste, flush all the same. Anyway, Grohe had no explanation as to why their cisterns leak, and they are the official partner of Saniflo in the combined WC frame/macerator product. If i didn't have a macerator i may never have noticed. No one was really that interested at Grohe. Still waiting for them to cover costs. They took 4 months of my life. My bathroom taken apart and put together 3 times.
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