Shock arrest or

[armyash]

Hi guys

Heard lads saying about a shock arrestor the other day. I have never fitted one. are they any good, are they used just to stop the noise made (this is the reason they fiitted one) or do they serve another purpose?

Is is there anywhere in particular they need to be fitted on the system?

thanks

 

[WaterTight]

before washing machine, inlet valve etc. not fitted one but presumably they work.

 

[ShaunCorbs]

normally if the incoming pressure is high, also lack of clips on hammer in combination with ceramic cartridge taps

 

[Scott_D]

Stops a combi kicking in for DHW if there is a check valve/water meter fitted
Its asked for in some MIs

 

[armyash]

before washing machine, inlet valve etc. not fitted one but presumably they work.

So would straight after the stopcock be best?

 

[dancinplumba]

Stop plastic hydro blocks from leaking

 

[tamz]

If there is a non return valve fitted to the cold main either at the stopcock or water meter you should fit one especially if you fit a plastic boiler. They are just a mini expansion vessel.
A few combi's (even cheap ones) had them inside 25 years ago. Thats progress.

 

[lame plumber]

then they saved money and just told us to install one in the MFIs