What does this do in the cistern?

[TommyX]

Hi
In the process of trying to fixing a constant dribble from the cistern, I took out the the filler valve and broke the bit circled in the image.
It looks like this model is no longer available, but what does that part actually do? I cant see any purpose for it. It seems like some sort of float valve but I cant see what it would shut of.
I've orderd a new rubber seal to hopefully fix the leak, but do I need to bother about trying to fix this bit back on?
I notice that there are some models similar to this do dont have the float and some that do.
Any advice welcome.
Thanks

 

[muggles]

It's part of the dual flush mechanism - it'll control either short or full flush volume

 

[TommyX]

Thanks for the quick reply muggles.
So if I cant get it to stick back on with super glue, from playing with it it looks like it will still flush, but maybe I will need to keep my finger on the button to start/stop the flush?
Would that be right? Is that worst case?
If I dont need to keep my finger on it then I guess I just get 1 type of flush (short or long) rather than 2?

 

[denso13]

Would that be right? Is that worst case?

Hard to tell, try it and see what happens.

 

[TommyX]

Yes will have to see when the new seal arrives and I've put it all back together. Otherwise - I will just have to get a new toilet!

 

[leegsi]

I think they are all interchangeable so you can just get a whole new flush

 

[mattylad]

dont use superglue, dry it out - roughen the edges and use araldite or similar.

 

[fatplumber]

It’s a ver cheap dump valve. You can get a better one for about £20

 

[durhamplumber]

Hi
In the process of trying to fixing a constant dribble from the cistern, I took out the the filler valve and broke the bit circled in the image.
It looks like this model is no longer available, but what does that part actually do? I cant see any purpose for it. It seems like some sort of float valve but I cant see what it would shut of.
I've orderd a new rubber seal to hopefully fix the leak, but do I need to bother about trying to fix this bit back on?
I notice that there are some models similar to this do dont have the float and some that do.
Any advice welcome.
Thanks
View attachment 186536

Throw it in the bin.

 

[BoilerBob]

Bin it. Bob

 

[HERTS P&D]

See below:

https://www.screwfix.com/p/fluidmaster-button-cable-dual-flush-bottom-inlet/58353

Andy

 

[TommyX]

Thanks all for the replies. The replacement rubber seal arrived and now fitted it works fine without the float attached - allbeit with the need to keep your finger on the flush button a little longer.