Another noisy cistern
Posted: Thu Oct 11, 2007 4:11 pm
In the last few weeks our downstairs cistern has become very noisy (similar to a recent post likening the sound to a cruise liner's horn). When we flush it, it makes a loud groaning noise which gradually reduces until the cistern has refilled. My first thought was that the ball valve was fouling the side of the cistern but I have removed the lid (a technical achievement for me!) and can see no problems. The other cisterns in the house are fine. The cistern (and the house) is not yet 4 years old. By the way, it is a two-button type flush, in case that makes a difference. To my knowledge, there has been no change to water pressure.