How to replace faulty ball valves

Faulty Ball Valve

If you open your toilet cistern and see a corroded, scale encrusted ball or float valve you could be pouring money down the toilet once your area is put on water meters.

Background Information

The old fashioned "Ball Valve" has been around for centuries being mentioned as far back in history as 1790, and for the toilet that is where they need to be left, as history. We are now in the era of the "Fill valve".

Corrosion is a minor problem but causes your valve to be inefficient and means that the cistern/tank may overflow and use too much water.

Plastic balls can split and take on water and become too heavy to be effective. Ball valves that use large arms and balls are noisy in operation and not necessary anymore.

Step-By-Step Guide

Ball valves control the level of water in your toilet or WC cistern so follow these instructions when changing over to FlushKING Fill Valves.

1. First, shut off the mains water either at the isolation valve to the toilet or the main stopcock to stop the water flow to the ball valve.

2. Undo the nut connecting the water supply pipe to the ball valve body on the outside of your cistern.

3. There will be two nuts on the ball valve, one on the inside of the cistern and one on the outside.

4. Remove the back nut on the outside of the cistern, you can now remove the ball valve.

5. Fit the new fill valve and screw on the back nut, ensuring any seals or gaskets provided are in the correct place. (depending on which unit you use)

6. Ensure the fill valve is secure by tightening the back nut hand tight.

7. Replace the fibre or rubber washer in the nut connection (the nut on the water supply pipe) and tighten it.

8. Finally, turn on the isolator or mains stopcock and make sure there are no leaks.

9. Check the fill level against your cistern and adjust to ensure it is not over flowing.

10. And there you have it, a new quieter & efficient fill valve.

Browse our range of fill valves here

Did you know?

The Environment Agency has developed a methodology for identifying and classifying relative levels of water stress in water company areas in England. The Government has used this map to designate areas of serious water stress for the purpose of accelerating water metering.