With the eclectic membership of MSCC I am sure there will be a plumbing or hydraulics expert who can answer this conundrum.

The cistern in the downstairs toilet developed a violent water hammer. I found that the float on the ballcock, a stout plastic 150mm sphere in perfect condition, was nearly full of water. I cannot see any orifice through which the water could have entered and nor can I remove the water without puncturing the ball.

The question is: how the Devil did the water get in there?

New balls are available from Amazon.

Last edited by Felix42; 20/03/21 12:15 PM.

John

Silver 2005 S1 Roadster V6 - Henrietta