Water pipe replacement

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I'm replacingmy water supply pioe from 15mm copper to mdpe. United Utilities are gonna make the connection in the road at some point. I've asked them for a full quote and I'm still waiting.

Thing is, my builder (who's building a side extension at the moment) has got a small digger on site tomorrow for backfilling the founds.

I'm thinking of asking him to dig me the trench for my water pipe while he's got the digger. If he did it to 750 deep, and I lay the pipe in the trench on a bed of sand, cover it with more sand then fill it back in.... and take lots of photos and videos to show UU..... do u think they would be ok with it? I know they normally wanna inspect the trench, but times restraints won't allow it without me leaving the trench open for a month or more..... which I don't wanna do. Just wanna take advantage of the digger whilst he's here. What do u guys reckon..... Will UU see their arse and refuse to agree it retrospectively??? Do u think
 
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UU don't have to do it. I got a private firm to do mine. SE water didn't care what happened my side of the stoptap (which is on the boundary).

Find a plumber?
 
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There's a particular qualification plumber's have to have I think but can't remember what it is. Does anyone know?
 
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Using at least 25mm MDPE do everything to the book and at the external stop-cock or closest to it, say at a garden wall, then leave a coiled end of MDPE in an open pit big enough for the utility to make a connection in.
Coming into the house at 750mm depth, in an insulated sleeve, rise straight up, and fix an isolator.

When your ready, call the utility for a connection - dont go talking about anything else. If the utility wants to know any more they will ask.

Its a DIY job.
 

CBW

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I think I waited 5 days for my UU inspector, but that was pre-Covid, approx 14 years ago.
 
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