"Christian McArdle" wrote in message
. net...
all taps and showers in the house. But as far as I can see the mains
pipe coming in under the kitchen sink is just 15 mm. I need 22 mm.

First actually test the flow rate. Under some conditions, 15mm can
actually
give an adequete flow rate. If not, then the replacement will not be
cheap.
Think in terms approaching four figures, especially if the route goes
under
block paved driveways etc. You may be forced to have a water meter.
However,
unless you use hosepipes and sprinklers, meters are likely to save you
money.

Also, you might want to check that the mains in your area are good enough.
In some cases, ancient Victorian mains are well undersized as requirements
and housing density has increased, and will have poor flow/pressure
characteristics themselves.

Christian.


If you do some of the work yourself then there is no reason it should cost
so much. Prices only really start to rise if you have to dig up a concrete
kitchen floor, for example.

I bought a roll of 25mm MDPE blue pipe from my local merchants, dug up the
front garden and drilled a big hole through the front of the house to get
the pipe through to the sub-floor space. Be sure to sleeve the 25 mm in
28mm or 32mm plastic waste where it passes through the brick.

Then I called the water company to come and connect it which they did for
free considering I was replacing lead. They also connected me into my own
68mm main in the street so now the pressure could blow you out of the bath.
Actually, I have to reduce the pressure but it will be useful if I ever need
to do some crowd control. hehe!

From the 25mm MDPE go to 22mm copper.

HTH
Rob

--
Tel. 07010 703 702

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