Noisy water inlet

[timbalcombe]

Water pipe into house has a restrictor valve on it which does make some rattling noise but I'm sure is not the cause of my problem
I looks like an old lead pipe comes up from the floor of which a 15mm coper pipe feeds in to the combi into the floor above.
When water is run there is a huge amount of noise which sounds like sssshhhh (I know! but how can you describe sound of rushing water)

Question If the pipe was replaced with 22mm then a small run of 15mm into combi would this likely quieten down the volume of water being squeezed through the 15mm?
I'm looking at getting the resrtictor valve removed and replce with a stopcock as the screw valve is shot.

 

[ChrisR]

Er, a restrictor valve? Is that some sort of tap, or just a restrictor?!
15mm is the same size as the normal lead (1/2" internal if it's about 21mm o/diameter) so doesn't make a nise like that. More likely your RV is part shut.

 

[timbalcombe]

cheers for reply.
I believe it is a restrictor valve. It is a shared supply so I'm told its common to have these fitted due to higher pressure??

 

[Nige F]

Replace with Pressure Reducing Valve.....£15.oo from PTS plumbers merchants Wait until May ...when the noise has driven you mad .er YES it WILL reduce your pressure to 3Bar...ha.ha. See you next Christmas

 

[timbalcombe]

What but that will reduce my pressure, or, will it?

 

[meldrew's_mate]

Water pipe into house has a restrictor valve on it ....

That'll make some noise

I'm looking at getting the restrictor valve removed and replce with a stopcock as the screw valve is shot.

That wouldn't be a "screwdriver" slot 1/4 turn ball valve would it? Use one of these to restrict flow and your rather accurate description of the noise holds true. Use a proper stop-cock and the noise will be reduced significantly.