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PostPosted: Fri Sep 15, 2017 10:06 am 
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So, I have my yard slabs up to look at drainage and may as well sort this supply out too. Only real need is to have the supply moved closer to the party wall since I am re-configuring the kitchen. But I noticed that there is about 1.5m of 15mm copper underground and the yard stopcock is seized. So I'm thinking of putting a length of 20mm plastic pipe in with a push fit stop cock at the same time. This will also allow me to T off to a new shed supply but that's another story.

The water supply comes in under my neighbours garden wall in 1/2inch steel (or iron?) and is under a concrete slab on their side so I can only go so far and we have a shared stop tap in the street.

Is my thinking correct at all? Is it even necessary? I gain a working stopcock, a T to the shed, larger blue pipe into the house in the right location, and get rid of some of the rusty stuff.

What's the best approach to this?

Thanks.

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PostPosted: Fri Sep 15, 2017 10:10 am 
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Sounds fine to me. I would make sure that you have everything you need on hand before starting work on the pipe itself though since you have a shared stopcock, you want minimal disruption to your neighbour. Measure carefully to get the right fitting for the pipe so when you cut it you can fit right away and in theory only cut off mains supply for a few minutes.


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PostPosted: Fri Sep 15, 2017 10:48 am 
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Since the existing pipe is cruddy I've been pointed towards using a talbot Grippa fitting. Anyone have any experience of this kind of hardcore push/compression fitting?

And what do you think to lagging the pipe? It's only 300mm down...

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PostPosted: Fri Sep 15, 2017 12:28 pm 
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Just a note: the local water authority has no plan to put you on your own metered supply.
Without the extractor tool (which is still akward in a pit/trench, also you will have a puddle of water to scoop out) you have one chance to fit the Talbot, so make sure all is tidy.
Our local W.A. put in a meter at the stop valve; it should be 750mm + deep, looks less but they just put a loose polystyrene blank above it as insulation, if it has not frozen to date then!



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PostPosted: Sat Sep 16, 2017 10:11 am 
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aeromech3 wrote:
Just a note: the local water authority has no plan to put you on your own metered supply.
Without the extractor tool (which is still akward in a pit/trench, also you will have a puddle of water to scoop out) you have one chance to fit the Talbot, so make sure all is tidy.
Our local W.A. put in a meter at the stop valve; it should be 750mm + deep, looks less but they just put a loose polystyrene blank above it as insulation, if it has not frozen to date then!
I'll check on the meter install plans, not heard of any...

How clean does the pipe have to be for the Talbot? There's not a single inch which doesn't have some rust. I'm under the impression that these Grippa fixings are specifically for this situation where a smooth pipe is impossible. I'll emery cloth it as well as possible. But it's this correct?

Unfortunately there's no chance of 750mm because of it coming in so much shallower from the neighbours yard. Even if I did it would still freeze under the neighbours property . I may as well lag it and use a Polystyrene plug in the access hatch as you mentioned.

So, any more specific advice on the Grippa?

Ta very much.

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PostPosted: Sat Sep 16, 2017 10:19 am 
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Give their Technical desk a ring I am sure they can advise http://www.mains2meters.ie/docs/Talbot_ ... System.pdf

DWD



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PostPosted: Sat Sep 16, 2017 1:13 pm 
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Since you are digging it all up anyway you may as well do the job right and lag it etc. Make sure that any free floating areas are bedded with plenty of sand before putting soil and stones back on top. A bit of hazard tape over the sand wouldn't be a bad idea either.



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