Thread: Ballcock valve not switching off due to limescale
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Old 01-01-2019, 15:50   #3
richard s
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Re: Ballcock valve not switching off due to limescale
Turn off the water (connected either by a blind valve [one quarter turn] or a ball valve.. leaver) then flush the loo. if the rubber diaphragm located in the blue housing is broken this needs to be replaced. It is a very easy job to do.


Take out the plastic pin which holds the floating ball in-situ unscrew the blue (left in your pic) screw, extract the rubber or plastic diaphragm and use Viakil anti-scale, spray this every where there is lime-scale leave for half an hour, and wipe up all lime scale.


Put back in reverse order.
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