I need to replace my mains water stopcock. It's attached to what appears to be a 22mm (or closest imperial equivalent) OD black plastic pipe that enters the house through the floor. The house was built in 1972.
Pic : http://i55.photobucket.com/albums/g136/mikej2005/stopcock_02.jpg
I've searched around on this forum and found quite a potentially useful thread here : www.diynot.com/forums/viewtopic.php?p=479298#479298
From the thread, it looks likely to be "black alkathene pipe" or "½" black low density polythene pipe (BS 1972) which has an OD of 21.5mm. (same as ¾" imperial copper)".
As you can see from the pic, I can't really afford to lose too much on the length or it's in danger of being below floor level, so taking a sample to a plumber's merchants might be tricky !
Does anyone have any suggestions or tips on how to attach a new brass stopcock to a plastic pipe like this ?
The thread mentions that a 'Plasson' or 'Philmac universal coupler' fitting could be used to convert to 15mm copper (for example) - could a coupler like this - www.philmac.co.uk/Products/UTC.asp - be used, followed by a conventional 15mm stopcock ? Would it be acceptable to have a fitting like this before a stopcock ? (Water can also be turned off at meter in the road outside)
Incidently - the current stopcock doesn't shut off the supply properly when turned off, leaks when fully opened and the run-off part also leaks when used too, so I'd rather replace it than simply add another stopcock above it.
Thanks in advance for any advice.
Pic : http://i55.photobucket.com/albums/g136/mikej2005/stopcock_02.jpg
I've searched around on this forum and found quite a potentially useful thread here : www.diynot.com/forums/viewtopic.php?p=479298#479298
From the thread, it looks likely to be "black alkathene pipe" or "½" black low density polythene pipe (BS 1972) which has an OD of 21.5mm. (same as ¾" imperial copper)".
As you can see from the pic, I can't really afford to lose too much on the length or it's in danger of being below floor level, so taking a sample to a plumber's merchants might be tricky !
Does anyone have any suggestions or tips on how to attach a new brass stopcock to a plastic pipe like this ?
The thread mentions that a 'Plasson' or 'Philmac universal coupler' fitting could be used to convert to 15mm copper (for example) - could a coupler like this - www.philmac.co.uk/Products/UTC.asp - be used, followed by a conventional 15mm stopcock ? Would it be acceptable to have a fitting like this before a stopcock ? (Water can also be turned off at meter in the road outside)
Incidently - the current stopcock doesn't shut off the supply properly when turned off, leaks when fully opened and the run-off part also leaks when used too, so I'd rather replace it than simply add another stopcock above it.
Thanks in advance for any advice.