Pulsing Hot Water

[TheBird]

Hi,

Has anyone had this happen before? I have bleed every radiator in the house (8) which took all the pressure out of the boiler (ticker fell to 0 and in the red zone). I have re pressurised the boiler up to 1.5 bar and re checked all radiators to make sure there is no air. There is none.

When i use the hot water in the sink upstairs and only upstairs the water hot water pulses through / the pipes shake like mad. Can anyone point me to what the issue can be? I do not have the issue with the hot water tap in the bath, and i do not have the issue on the hot water tap in the kitchen.

Cheers

 

[Whn1]

Possibly a Faulty tap. What kind is it?

 

[TheBird]

Its quite old, its your basic tap really. Can a tap cause that type of issue?

 

[Whn1]

By the way your hot water and central heating are completely separate, topping up the system and venting the rads will have no effect.

 

[Whn1]

A jumpy tap washer and unsupported pipe work throughout the house can make one hell of a racket.

 

[TheBird]

its a combi boiler (no tank) would that cause any issue?

 

[Whn1]

That tells me that you have mains pressure through your hot tap which if there was a dodgy washer or something would cause it to jump aggressively. That's where I'd start looking.

 

[TheBird]

Cheers Dude, I will look into new taps etc for the sink over the weekend, its driving me mad, in the middle of the night you turn it slightly and the pipe starts shaking, then it starts pulsing the water out . Thanks

 

[Whn1]

Not saying its 100% that, I'm saying its a possibility, isolate the supply and take the tap apart to check before you go buying new ones.