How to Fix Very Slow Filling Toilet Cistern
Drainage and wastage systems and plumbing help, advice and answers

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Mark2015Uk
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How to Fix Very Slow Filling Toilet Cistern

by Mark2015Uk » Thu Aug 27, 2015 11:32 am

Hi everyone

I have a toilet that when flushed is very slow to fill. I've attached images to show what inside cistern is like. Would really appreciate advice. Thanks

collectors
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Re: How to Fix Very Slow Filling Toilet Cistern

by collectors » Fri Aug 28, 2015 10:01 am

Chances are you have a high pressure valve & possibly need to change to a low pressure version. 1st you need to find out if the WC is off a tank in the loft (Low pressure) or mains the stop cock.
Turn off your main stop cock & flush the wc a few times. If the wc is still filling you wc is off the water tank in the loft & is low pressure.
You will now need to turn off any stop cocks from the main tank & make sure the wc is not filling. (Also have a look & see if there is a local isolating valve for the wc. If so! Just use this)
Now you can need to either buy a new cistern ball valve which is about £10/15 or just the little cone valve that fits inside 50P. most new valves will come with a low or high pressure insert. That is either red or blue.
But before you change anything, strip down the ball valve & make sure its not got muck or scale inside blocking the flow.

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