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Changing a Ball Valve...



Ball valves can seize up over a certain amount of time. A sign that your ball valve may need to be changed is if the overflow pipe from the tank on which it is situated has got water dripping or flowing from it.

1. Firstly, shut off the mains water stopcock to stop the flow of water to the ball valve.

2. Undo the nut connecting the supply pipe to the ball valves body. Changing a Ball valve - Photo 1
3. There are two big nuts on the ball valve either side of the cistern that hold the ball valve in place. Unscrew the back nut on the outside of the cistern. You can then remove the ball valve from the cistern. Click here to open Ball Joint video clip in a new window
4. Put the new ball valve in place and screw on the back nut. Make sure that the ball valve is secure by tightening the back nut with a pair of grips. Changing a Ball valve - Photo 3
5. Replace the washer on the nut connection (the nut on the supply pipe) and tighten using a pair of grips.


6. Turn on the mains stopcock and check for leaks.

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Changing a Ball valve - Photo 3
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