Why Does My Toilet Cistern Keep Making a Noise

If your toilet is making a vibrating sound around the wall whenever the toilet is flushed the problem usually has to do with the fill valve. More specifically, the diaphragm gasket inside the fill valve can wear down, lose elasticity, and harden. … First, remove the toilet tank lid and locate the float.

How do I stop my cistern from making noise?

Open the toilet tank and flush the toilet. When the valve starts making the foghorn noise, lift the float ball all the way to the top of the tank. If the noise stops, there’s a loose or worn washer in the ballcock mechanism. Look for three screws in the top of the fill valve.

Why is toilet cistern making noise?

One of the most common reasons behind a noisy cistern is dirt and debris getting stuck in the fill valve. A horn or whistle-like sound is caused due to water pressure running across this dirt and debris. Fixing this problem is quite easy. … This should stop the noise from the cistern.

Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.

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