I dont quite understand why its not all done in plastic -if you are going to use push fit, why bother using some copperHard to tell, but does the copper look like new piping I have general?
If they've foamed over the underfloor air bricks, you're going to have problems in the future.It's icynene spray foam and fully breathable. It was not done by this same builder but a well rated insulation company who gave a guarantee and assured me its fully breathable even over the ventilation bricks. So I was not particularly worried. It was dry as a bone under there but admittedly we're just coming out of summer..
I very much doubt he has a reason. I did not realise he was doing the pipework - he is not a plumber either he's just a general builder. Thanks for your input @Lower and @johnny2007 - pretty much confirms it is all old pipework. The leak detection engineer confirmed where the leak is using a gas detection kit last Friday, and now all of a sudden there is no leak. I have reason to suspect he filled the affected pipe with leak sealant in secret to avoid having to replace the pipework, he was acting suspicious and checking the pressure for no good reason. Bled the valve after he left and the water was mild-moderately cloudy..I dont quite understand why its not all done in plastic -if you are going to use push fit, why bother using some copper
Im only guessing not being a plumber, there may be a good reason -its just that all refurb / extensions Ive seen have been all plastic in the floors and walls
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