Solutions for water hammer/high pressure

[WaterTight]

Tested pressure at 4.5 bar static. Taps, toilet, washing machine all vibrate/bang at times. So I thought fitting a PRV would be a good start?

Problem is the only way to get at the internal stopcock would be highly destructive to the bathroom (and not to mention a pain in the arse) as the crutch head is protuding from a tiled wall in a corner within a vanity unit surrounded by boxing and with toilet in the way. And so putting one straight after stopcock not exactly ideal.

I'm guessing shock arrestors are more for when one appliance alone is causing hammer?

So just wondering what other options there might be.

Thanks

 

[ShaunCorbs]

Try putting a shock arrestor on either the taps or washing machine to see if that helps

But prv would be the best in combination with a shock arrestor after prv

 

[WaterTight]

I'll punt that suggestion. Thanks