28mm o.d black pipe

donkeyyy · Posted: Thu Aug 09, 2007 5:38 pm Post Subject: 28mm o.d black pipe

i have a leaking black plastic pipe just before the stopcock it seems to be about 28mm outside diameter .
any ideas about the make of pipe and would i need any specialist fittings

chr15 · Posted: Thu Aug 09, 2007 5:55 pm Post Subject:

Sounds like alcathene,you need to get the exact outside diameter and then visit your plumbing merchants and get a fitting to repair it-where is it leaking from?

donkeyyy · Posted: Thu Aug 09, 2007 6:26 pm Post Subject:

it has a small pin hole about 30 mm below stop cock ,making a right mess too.
managed to get a bit of rubber hose an jubilee clip on it

chr15 · Posted: Thu Aug 09, 2007 6:37 pm Post Subject:

donkeyyy wrote:

it has a small pin hole about 30 mm below stop cock ,making a right mess too.
managed to get a bit of rubber hose an jubilee clip on it

In that case you will need to get an adaptor that goes from black alcathene to 15mm copper-probably 25mm alcathene but make sure you measure it,then it would be best to put a new 15mm stop valve in and connect back to your existig pipework.

BoxBasher · Posted: Thu Aug 09, 2007 7:54 pm Post Subject:

Any coloured stripes on the pipe? This will classify the wall thickness of the pipe.

chrishutt · Posted: Thu Aug 09, 2007 10:20 pm Post Subject:

The pipe will be ¾" polythene, which has an OD of 27mm. If you can turn off the water upstream of the leak you could cut out the pin-holed section and refit the stop tap and liner to the new, undamaged end.

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donkeyyy · Posted: Sun Aug 12, 2007 6:04 pm Post Subject:

thanks for all the tips lads, i cut out a section of pipe and took it to the local plumb centre turned out to be 27mm black alkathene.
the guy behind the counter gave me a push on fitting to take me from the 27mm alkathene to 22mm copper , got to say had my doubts but it worked a treat.
cheers all