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Thanks for that croppie, good idea. Maybe send mrs wifey.......... she is prettier than me!!!!
 
A DIY merchant like B&Q wont be able to help you at all with this.

I think those fittings are similar to speedfit:

ImageUploadedByTapatalk1345821636.953040.jpg

To get the inserts for this, if you manage to get the plastic elbow off the plastic pipe you can reuse that insert.
OR
If you decide to cut the plastic and put a compression straight then renew to rad valve you could take the plastic that you've cut off and go to a leading plumbing merchant such as: plumb centre, crosslings, plumbase, PTS etc

They will look at it and try different inserts or try to remove the elbow for you to get the insert out 🙂
 
IMO it's not going to cost much to get a plumber in who will sort this for you in no time. That way you know it will be done right and the work will be guaranteed/insured.
 
Oh and you'll be there forever trying to unscrew that fitting, it doesn't unscrew. It's also not one of the fittings in the picture above
 
Thanks TB and JC, thats what I thought that it could not be uscrewed! Yeah JC I have thought about getting a plumber but I don't know anyone in the trade and not had to use a plumber before, well not for a long time now anyway. So do I just close my eyes and pick one out of yellow pages? How much do you reckon.... £30/40 or are we into £100's or more?
Just a note, the last time I ever did use a plumber, was a guy recommended to me by a local businessman. He was going to plumb in a dishwasher for me. First thing he did was turn off cold supply and then cut through the hot pipe under kitchen sink. Not the most impressed I have ever been and been a bit wary ever since, but again I don't profess to be a 'good' plumber myself.
Cheers.
 
Just one more thought...... at risk of sounding really stupid, I presume there is no way I am going to be able to do this repair without draining down the whole system?
Thanks again.
 
it all depends what type of system you have really. if you have a normal boiler with loft tanks or a combi boiler.
 
Just one more thought...... at risk of sounding really stupid, I presume there is no way I am going to be able to do this repair without draining down the whole system?
Thanks again.

Yeah! A silly question.
Either go for it or get someone in who can...
 
If you're happy to drain down it will reduce the price as you will be saving the plumber time, he will need to refill to be sure the fix is sound, at a guess I'd say it will be less than £100, probably talking about an hour(ish) work with very little materials needed. Inhibitor will be needed after a drain down too, currently <£10 at toolstation for Corgi brand if I remember correctly although the plumber may be happier to supply stuff he knows and trusts which may cost a little more.
Remember though, you'll get a guaranteed and insured job and you know it will be done right.
 
That is a NON demountable Hepworth fitting, only way to get that off is by cutting the pipe, and as for fiting plastic pipe in concrete etc, nothing wrong with it as long as the pipe is pressurised before the concrete or screed is laid. Underfloor heating is plastic pipe
 
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