How do you reduce the water pressure in your house?

How to reduce your water pressure to your taps if you have a high mains pressure or an unvented cylinder such as a megaflow, boilermate ect.

Reducing water pressure in your home can be done in several ways, my video demonstrates a few. Some people turn down the isolation valves or main stopcock which is not advisable, as it can produce noise, water hammer in pipes /taps and can damage the valves and stopcock.