Pipe Insert needed for 1/2" I/D black plastc pipe circa 1974 Walsall area

[spadders]

Hi guys, I hope somebody can help me as I'm struggling a bit.
We have moved our kitchen into a different room, and a door is going where the original water main is, so it needs to be rerouted. Spoke to a plumber who said use a 22mm elbow with a 3/4 olive to connect to the old black plastic which is 1/2" inside diameter, and to re-use the insert. I cut the pipe first because the fitting was seized, and when I got it apart there was no insert, just a piece of 15mm with an olive on that was flapping around doing nothing. I pulled the old olive off and it has a lip either side to help grip the plastic.
I've reconnected, and both sides of the elbow are weeping, the plastic and the 22/15 reducer on the new pipe. I had to reconnect so we had the water back on.
Can anybody tell me where I can get a 1/2" insert for the black plastic pipe in Walsall or surrounding area?
Many thanks in advance.

 

[lame plumber]

go to an independant merchant with an offcut of the pipe

 

[GasmanxxxR1]

think you can get a philmac adaptor for this type of pipework, check with plumcentre or similar

 

[Gray0689]

Can you not use a bit of 15mm copper as an insert

 

[basildog]

If possible you need an offcut of the pipe ?
Go to a merchants or pipeline centre as the old black poly comes in many classes such as class C or D and the wall thicknesses are all different !
Try PLASSON or PHILIMAC

 

[mike-c]

If it is the same pipe that I am thinking of then a 15mm Yorkshire straight should be a neat fit. (Not sure about an end feed type though).

 

[josh]

As Gray said, you can use 15mm copper,
i have flared it like an insert by hitting the copper standing upright to stop it going into the pipe to far.

 

[GasmanxxxR1]

Its not the type of lovely 70's pipe that needs gluing is it?

 

[spadders]

Been everywhere to try and find an insert and nobody has one, tried Plumbase, City Plumbing, PTS and Yardley Holland, the guy at PTS insisted that I can use a Philmac Universal Transition Coupling without an insert, which I duly bought home, but it's really bulky and I'm struggling to get it in situ.
Would it be worth persevering with the compression fitting and maybe using Boss White and/or PTFE?

 

[ribtickler]

you can get the correct alkathene inserts off ebay. search "liner and olive for alkathene pipe"
hope this helps