Dave Liquorice wrote:

On 16 May 2005 05:50:44 -0700, Mark Trueman wrote:

So is there any way to remove the solvent weld from the fittings and
pipes in order to re-use them? Just pulling them apart and adding
more solvent weld doesnt seem to provide a particularly strong
joint.

Hum, I don't think they can hve been done properly in the first place
if you can pull 'em part. A properly made solvent weld joint becomes
one bit of plastic once the solvent has evaporated. Be aware that
diffrent makes of solvent weld are not all the same size. You need to
use only one brand of pipe and fittings not mix 'match.

With overflow (nominal 21mm) as with '32mm' (old 1 1/4") and '40mm' (old 1
1/2") waste they come in solvent weld and push-fit varieties. Unlike 32mm
and 40mm the sizes of overflow are close enough that you can often mix the
two e.g. push-fit fittings and solvent weld pipe. If you can pull the
fittings apart after 'solvent welding' them then they and/or the pipe were
probably push-fit as the sort of plastic they use for that (polypropylene?)
doesn't dissolve in the solvent.