Push button cistern not filling quickly. Can I fix it myself

[darrenbgray]

Hi,

After I flush my toilet it is not filling up properly. When I take the cistern lid off (I unscrew the push button out the top of the cistern first) there is a very small spray of water coming out the end part of the mechanism (I’ve attached a couple of photos but not sure how clear they are) and a small trickle of water. It does eventually fill up and stops when it has reached the correct level but this takes forever.

Does anyone have any suggestions how I could fix this please.
Should I try to unscrew the end bit and give a good clean?
Is it possible to buy a new bit, if so what should I look to order?

Any advice would be great.

Thanks
Darren

Untitled

• darrenbgray
• 29 Oct 2014
• 1

Untitled

• darrenbgray
• 29 Oct 2014
• 1

 

[JohnD]

How old is it?

Has it always been slow, or got worse?

If you put your thumb over the spout of the cold-water tap in the basin, can you easily stop the flow?

Look at the incoming cold water pipe that feeds the cistern. Is there a service valve on it, probably operated with a screwdriver? If not, do you know where your stopcock is?

Stand back and take some wider pics please.

 

[darrenbgray]

Hi

I would guess its approx 10 years old and it has been working perfectly until this morning when I heard the hissing.

The pressure out the basin tap is strong I wouldn't be able to stop it with a thumb.

There is an isolation valve on the in pipe into the toilet.

I'm at work now so can't get any more photos until tonight.

Thanks.

 

[JohnD]

It has probably got sediment in it then. Turn off the valve, take it apart with care, rinse the parts, reassemble. A new one is not expensive but I can't make out from the pics what sort it is.

 

[darrenbgray]

Ok thanks for your help. I will try that tonight and if it doesn't work I will post some photos to see if we can identify it better.

 

[Stingray13]

Email toilet spares with loads of photos and they will sell you a new washer/diaphragm for it

Looking at it i would guess its a siamp,

 

[darrenbgray]

Thanks I will do. Do I just unscrew the big plastic but where the hissing water is coming out and replace the washer?

 

[bazdaman]

It doe indeed look like a siamp, poss new diaphragm washer req

 

[darrenbgray]

Just to maybe help people in the future who look at this post it does appear it was a Siamp diaphragm washer. Also, toilet spares as suggested in a previous post were very good at identifying it.

Just have to fit it now!