How To Fix A Water Hammer
This can be a problem in a lot of homes and can happen anytime, not knowing what a ‘water hammer’ is can be a downfall to fixing the problem. This is how a ‘water hammer’ is caused.
A Ball valve is what controls the cisterns for your tank and toilets when cold water is entered, hot water flows from your emersion which makes the cold water from the tank to replace it. Incoming flow is managed by a float, this inclines the water allowing the valve to shut once the tank is full which is a similar technique to when you flush the toilet. As cold water rushes into the cistern it causes the water to vibrate forming ripples, the float is then constantly moving up and down which opens and closes the valve. This vibration on the arm of the float within the valve is what makes the ‘water hammer’, this causes pressure behind the valve when shut because water is trying to flow through the pipes in such a high speed that it builds up. The more pressure it gains, forms a pressure wave which moves up and down the pipe changing the energy into friction causing the hammering noise.
Firstly you must check that the pipe is secure whether its against a joist or a surface, once that’s confirmed you can now start to get rid of this problem. Find an empty yogurt pot and tie it to the arm of the float with metal wire that will not rust. Position the yoghurt pot slightly below the water line, as this will cause enough weight to stop the reverberating but will still allow the arm to rise.
You have now fixed the problem and water can easily flow through your pipes.