New cistern leaking into pan

[Leigh Florence]

Does it still leak into the pan with the float valve switched off? Maybe leave it over night with it switched off. If it does then the flush valve must be the culprit.

I wish i knew how to do that. 🙂. Helpless ignorant.

 

[Rightjob1]

The silver flexi that you show in the photo on the left hand side,follow that flexi back to the right hand side and take a photo

 

[rpm]

Concealed flushing cistern | GROHE
Scroll down to the last question.

 

[Christopher buzzard]

There will be an isolation valve either inside the cistern p, connected to the silver flexi or just outside the cistern. This should be accessible to you.

 

[WaterTight]

Grohe make great taps but their toilet cistern innards leave much to be desired. A £50 toilet to go with a £20 fluidmaster pack put in it would outlast their stuff by a decade.

 

[WaterTight]

only thing if can be is the syphon isnt sealing properly and allowing water to pass into the pan or else the water level too high in the cistern and its overflowing into the pan!

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.

 

[rpm]

You're right Margaret, don't want to hear it!

Margaret? Thought his name was Jon or is there something Jon wants to share? 🙂

 

[rpm]

Leigh whatever you do DO NOT TURN THE MACERATOR OFF.

 

[Leigh Florence]

Thanks everyone so much for engaging with this and me. I won't turn the macerator off, thanks rpm. Have you seen Margarets photo!

 

[Harvest Fields]

Concealed flushing cistern | GROHE
Scroll down to the last question.

I HATE concealed cisterns

 

[rpm]

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 🙂

 

[rpm]

That Silver braided flex should have an isolation valve to the right of your photo and will look like this
https://www.googleadservices.com/pa...hUKEwiFrJCZyPbYAhWQ_aQKHRbcAuEQ9aACCDQ&adurl=

 

[townfanjon]

Margaret? Thought his name was Jon or is there something Jon wants to share? 🙂

I am missing something as well lol , maybe Liz but dont get Margaret

 

[townfanjon]

I HATE concealed cisterns

And “snap”

 

[rpm]

I am missing something as well lol , maybe Liz but dont get Margaret

Think Leigh is stressed mate and rightly so.

 

[townfanjon]

Think Leigh is stressed mate and rightly so.

Might be a Bradford City fan

 

[rpm]

Might be a Bradford City fan

Trust you to bring football into it! 😉

 

[townfanjon]

Trust you to bring football into it! 😉

Football , Sadford dont play football

 

[Harvest Fields]

Trust you to bring football into it! 😉

He isn’t mate. He’s talking about Bradford City.😛😛😛

 

[townfanjon]

He isn’t mate. He’s talking about Bradford City.😛😛😛

Exactly !!!