Have to open tap to fill cistern, slow filling and water dripping in bowl

[veedee]

Toilet has the following issues

- Cistern is slow to fill. However this speeds up when you open up either basin or bath tap.

- Water is constantly trickling into toilet bowl

I inherited the toilet, so do not know whether it has always been like this

Pics added of toilet cistern internals

Please advise on what needs doing/changing etc

 

[terryplumb]

When cistern is filled ,does water reach the overflow tube and run down it into the pan ? If it doesn't ,then water is leaking past the flush valve seal and needs replacing.
The float valve needs replacing too probably.

 

[veedee]

When cistern is filled ,does water reach the overflow tube and run down it into the pan ? If it doesn't ,then water is leaking past the flush valve seal and needs replacing.
The float valve needs replacing too probably.

Are you referring to the white seal marked up in the pic?

If so, can you just replace the seal and keep the entire flush unit or is it advisable to replace the entire thing?

I don't want to come back to this job just for the sake of saving a few pennies

Is it okay to use CT1 as your silicone sealer?

Whilst the toilet is disassembled, should I replace anything like the doughnut?

 

[HERTS P&D]

Fit a new fill valve, new flush valve, through bolts and dounut washer:

Fluidmaster Bottom-Entry Brass Shank Fill Valve 1/2" - Screwfix

Fluidmaster Push Button Cable Dual-Flush Valve - Screwfix

Order online at Screwfix.com. Fluidmaster valve with top, front or side dual-flush operation. Fully height adjustable overflow, no cutting required. Twist and release action for easy maintenance. Cable length 350mm. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

Viva PP0021 Stainless Steel Bolt-Through Kit - Screwfix

Order online at Screwfix.com. Stainless steel bolt-through kit for connecting toilet cistern to bowl. FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

You will also need a new dounut washer.

I wouldn't use CT1 , It will never come apart again.

Andy