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In the USA standard water pressure can range from 35 – 80 psi, less then 35 a booster pump could be needed more the 80 a pressure reducing valve is required.
Also proper water volume is needed for proper operation of the plumbing system, in the average home we need 12 – 15 gallons per mintute.
You can have 100psi in a 1/4″ pipe and it will be enough to operate all the plumbing in a modern house because there is not enough volume.
Don’t know about the U.K. requirements.
» This message has been edited by PLUMBILL on 09 June 2004
» This message has been edited by PLUMBILL on 09 June 2004
» This message has been edited by PLUMBILL on 09 June 2004