Toilet cistern overflowing onto floor!

[claude2]

After flushing, the cistern refills to its usual level, but then gradually keeps filling past the float. I appreciate this is probably something worn on the valve, and the best course of action is to replace the valve unit.
However will a valve like a Fluidmaster be a suitable replacement for this set up? I ask as I cannot see a makers name on the current valve.
Also it appears the overflow set up is not right. The water overflows from the fixing holes at the back of the cistern onto the floor, as the overflow pipe is too high. Should the overflow pipe be cut or drilled? I cannot see how to adjust it.
Finally, what is the flexible pipe that connects the valve to the overflow/flapper unit? Will it need to be replaced if the valve is changed?
Any help appreciated.

 

[HERTS P&D]

Brass bottom entry fluidmaster.

Andy

 

[xr4x4]

It's hasn't been fitted correctly, the overflow needs cutting down to the correct level.

 

[claude2]

Thanks, any ideas if the interconnecting flexible pipe will need to stay when the valve is changed? I have no idea what it is for!

 

[Charnwood]

No idea about yours (never seen anything like it before), but Fluidmaster do something similar, pipe from fill valve to overflow - the pipe feeds into a device at the top of the overflow and flushes a quantity of cleaning fluid into the bog everytime the cistern refills.

Flush n Sparkle:
http://www.fluidmaster.com/downloadable/download/sample/sample_id/227/(For the American market.)

 

[Nige F]

Finally, what is the flexible pipe that connects the valve to the overflow/flapper unit? Will it need to be replaced if the valve is changed?
]

is it something to do with a dual flush . Sorry I can`t see how to adjust/shorten the upstand

 

[claude2]

Thanks for replies.
So is replacing the valve with a brass Fluidmaster, removing the flexi between the valve and the flapper unit altogether, and trimming down the overflow my best option here?

 

[Charnwood]

Replace both the inlet valve and the flapper with Fluidmaster products.
A fluidmaster flapper allows for adjusting the volume of the 'small' flush and also allows for dual flush capability.