when turning on or off a tap or flushing the toilet the pipes give off a loud hammer / buzzing noise. What causes this and how can I stop It. It has only been happening over the last couple of weeks.
You can see something similar if you sit in the bath and slosh the water about - it hits the end wall - rises up high and rushes back towards you.
Electronic signal wires can suffer a similar effect with electronic reflections of energy back along a cable.
Wikipedia has an excellent article about water hammer. Before you try any solution just close the main water stop tap half a turn or so to reduce the incoming pressure.
http://en.wikipedia.org/wiki/Water_hammer
Good luck...
Peccavi
June 2013
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