Is plastic pipe (HW and CW) in a flat built in the 1960s likely to be
metric or imperial?
If it's imperial how can I connect to it as inserts are not available
for imperial size pipes (I presume). The original system was all
I've replaced some that prob came from that era & it was imperial.
No inserts in mine & it was just sealed with O-rings & held with grippy
washers. Could it be that only MDPE needs stiffeners & that earlier PVC &
Polyprop doesn't? BES do universal transition fittings to MPDE only (I
think) so you'd have to use an adaptor set to copper as well, messy &
pricey. There must be a better way but here's the link anyway:
Yes, I have a nasty suspicion it may be imperial, I seem to remember
having found it was when I did some plumbing there many years ago.
The stuff in this flat is fairly hard (as plastics go) but very thin
walled I think (I'm not there to check so I can't even measure it at
the moment). I think the last plumber who did some work there has
used compression fittings on it which seem to have stayed watertight.
Since I'm chopping back the plastic even further I can maybe re-use
those same compression fittings (with new olives).
The standard of plumbing (and everything else) as originally installed
was truly awful so the more I can get rid of the happier I will be. All
the central heating has been re-done now (not by me) and the kitchen
has been re-wired. The remaining bad bits are the rest of the wiring
(the fittings are the bad bit) and the plumbing in the bathroom which
I'm about to replace.
Can you cut off a short section? If so, lug that down to your local
plumbing centre and ask for an adapter from that to a more workable
standard - say 15 or 22mm copper. If it's the thick walled black
stuff, then it probably won't need an insert, but be guided by them.
Once you've converted to copper for a few inches, you can continue in
whatever style you want.
Simon Avery, Dartmoor, UK
uk.d-i-y FAQ: http://www.diyfaq.org.uk /
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