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Faulty Toilet Ball Valve (Islington)

Here we have one of the most common plumbing problems out there, a plumber in London would deal with a job like this time and time again, a faulty ball operated valve. The symptoms of this fault would be water discharging from the overflow / warning pipe or in the case of toilets with syphons that have an internal overflow you would notice a continual running of water into the pan. If your overflow pipe does not discharge in an obvious place outside you may notice the sound of the cistern trickling continuously.

The 2 ways of curing this is either by changing the washer inside the valve or more commonly changing the valve for a new one. These valves are not very expensive so its normally a better idea and more cost effective to change the valve rather than just replacing the washer as there is no telling how long the new washer will last.

Islington Plumber

Most common causes for these ball valves becoming defective are general wear and tear over the years and in hard water area’s you tend to get a build up of scale around the washer and seating area meaning the washer will not give a perfect seal and turn off the water. In the job shown we show photos of a defective old type ball valve being replaced by a new torbeck valve (equilibrium). It works on a similar principle of the ball valve as it forms an air bubble in the upside down cup and raises when the water level raises, instead of the ball valve pushing against a washer this valve works on a balanced pressure to shut the valve off (pressure pushing against its self).