Incoming mains black plastic pipe to 15mm copper

[Jim Goodenough]

Where's the new mains stop tap going if you're removing this one?

Top question JCplumb,

I reckon Jon know's... (the OP)

 

[Jim Goodenough]

oh too slow... it's that time of night 😳😛😕😵

 

[Jim Goodenough]

It will be slightly further along from the plastic pipe. About 2 foot away between 15mm copper pipe. Will that be ok?

As long as it's easy to access

 

[Jon]

Yes easily accessible thanks Jim

 

[Vicdiy]

Hi.

Have a mid 1980’s house with the mains water coming in from underground via a black plastic pipe, of which the external diameter is 27mm. There does not appear to be any markings on it, but maybe some faint green.
This goes into a 15mm copper pipe via a stop tap with compression connections. There is a slight leak and due to a new room layout I need to take apart and reconnect the black plastic pipe straight to 15mm copper pipe without the need for the tap.

Is there a straight connector out there for connecting this 27mm black plastic pipe straight to 15mm copper pipe please?

Thanks, Jon

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If that is your incoming mains you will still need a stop tap somewhere or are you putting it further up in the copper?

 

[Scott_D]

You don't need an insert with black poly

Just with a philmac type fitting?
They have always had insets when I have changed compression stop taps

 

[Jon]

If that is your incoming mains you will still need a stop tap somewhere or are you putting it further up in the copper?

Yes further along within the copper, no more than 2 feet away

 

[ShaunCorbs]

Just with a philmac type fitting?
They have always had insets when I have changed compression stop taps

The black poly is thick normally has an internal bore of around 15mm so an insert isn't needed

 

[Jon]

I have ordered a selection of different sized inserts in plastic and metal just in case when I take it apart it looks like it requires one.

 

[ShaunCorbs]

I have ordered a selection of different sized inserts in plastic and metal just in case when I take it apart it looks like it requires one.

There might be one in the compression stop tap joint

 

[Jim Goodenough]

There might be one in the compression stop tap joint

I've still got a few imperial copper inserts in my cellar somewhere 🙂😀!

 

[Best]

I have always used copper inserts in the black poly

 

[Tim S]

I always use an insert in any plastic/poly pipe, especially if your going to tighten a compression fitting on to it. Black mdpe used to come in high and low density which determined the size of the insert.