Alkathene mains

[rocketman]

Got a mains with knackered stopcock which has got another stopcock fitted after the knackered one and lots of other garbage. The whole lot needs to come out and be sorted before I can fit a new wall mounted WC. It was all hidden behind a back to wall wc covered by tiles for the last 30 rears..Lots of different people have added to what is a nightmare that was hidden away. As you can see, it really does need sorting.

Never worked this stuff. I presume it's 1/2" as the OD is around 3/4? I know there there are adapters about to take it from 3/4" to 15mm.

Obviously an insert/piece of 15mm will be needed (hopefully) it's got one in. Can this stuff be brittle? Too brittle to clamp shut?? Part of the problem is the OS tap on the meter is not great and I'm gonna get wet!! It doesn't quite shut off and weeks before Anglian water can get out to sort the OS tap. I've got to get it right first time and quickly.

 

[Whyme]

Just get a philmac adapter whatever size alkathene to copper adapter, make your stop tap in ready and cut it you wont get wet for long..Might want to get that paint of though.

 

[kris]

Heres a compression fitting for that purpose rocket,,
Lead Pipe to Copper Plumbing Fittings | Stevenson Plumbing & Electrical Supplies

 

[Killy Bing]

Heres a compression fitting for that purpose rocket,,
Lead Pipe to Copper Plumbing Fittings | Stevenson Plumbing & Electrical Supplies

*slaps*

that isn't lead chris

 

[AWheating]

You can get a plasson 1/2 to 20 or 25 mm coupler and then the adaptor set down to whatever sized copper you want. It's better than a transition coupler due to the smaller size. It will fit all the different variants of the black pipe in that size and needs no inserts.

http://www.plasson.co.uk/gallery/upload/Product Information/black2blue v1.pdf

the 1/2 black measures about 21.5 mm external, you can also fit compression fittings on it with 3/4 olives but the plasson fittings are better and fill you with more confidence

 

[AWheating]

If your doing it live, set up the coupler with a stop tap ready, after the stop tap run a hose pipe to drain to take away the water pressure while you doing it. Cut it, push it on and tighten by hand then a nip with your grips. Remove the paint, make sure your going to seal on a un damaged part of the black pipe.

Oh, and good luck

 

[Ermintrude]

I'm one for the philmac universal !

 

[rocketman]

Guys, Thanks for the replies, much appreciated. It'll be a day or 2 before I get to it. The one thing that is concerning me is there is on about 5"/5.5" or pipe to play with and most of that is close to the skirting which I could take it off I suppose. I'll let you all know how I get on