On Thu, 04 Apr 2013 16:09:30 +0200, Martin wrote:

On Thu, 04 Apr 2013 14:54:49 +0100, Judith in England
wrote:



I am making an irrigation layout at the moment :13mm and 4mm piping

I need to cut the 13mm to quite precise lengths with L's and T's. I was then
finding it quite difficult to push the piping over the barbs with the pipes in
situ

Ding!!

Put the end of the pipe in a jug of near boiling water - and then the piping
just pushes on with no problem after becoming quite soft.

People with a marine toilet uses the same method to replace plastic
plumbing in their boat. Some use a hair drier, a few use an electric
paint stripper to warm the plastic.

If the pipe is already semi flexible such as PVC and you don't have
access to a container of hot water or a source of hot air then hit the
end inch or two rapidly with a hammer with the pipe up against a hard
surface.
The energy has to go somewhere and it's surprising how short a time it
takes to soften up the end.

G.Harman