Push fit problem

[Jamie3147]

Hello,
I am currently replacing my en-suite. It is mainly push fit plastic pipe work installed by the previous owner and I am keeping most of it.
I would like to put an elbow joints on the sink water supply, as it just curls up and putting a bit too much pressure on the pipe under the floor boards.
I’ve read that you need to use the same manufacturers pipe stiffeners in the pipe but I can’t seem to find the supplier.
The piping looks very similar to PolyPlumb which I’ve used in other parts of the house but this piping is stamped with ‘PB H&C Services & Central Heating’. Would you recommend using PolyPlumb stiffeners or does someone know this supplier?
Thanks

 

[Wayners]

4 mins they discuss compatibility

 

[denso13]

Hello,
I am currently replacing my en-suite. It is mainly push fit plastic pipe work installed by the previous owner and I am keeping most of it.
I would like to put an elbow joints on the sink water supply, as it just curls up and putting a bit too much pressure on the pipe under the floor boards.
I’ve read that you need to use the same manufacturers pipe stiffeners in the pipe but I can’t seem to find the supplier.
The piping looks very similar to PolyPlumb which I’ve used in other parts of the house but this piping is stamped with ‘PB H&C Services & Central Heating’. Would you recommend using PolyPlumb stiffeners or does someone know this supplier?
Thanks

That's just generic markings on the pipe, a photo of one of the fittings might help.

Use a relatively tight fitting insert and possibly a compression fitting which can be tightened on securely.

 

[Madrab]

PB H&C Services & Central Heating - that's the old HEP pipe IIRC. It's Polybutylene, OK for water services but if it is the old stuf then maybe not for CH as it may not be barrier.

 

[Jamie3147]

This is the isolation fitting. Thanks

 

[CountryFan]

This is the isolation fitting. Thanks

There should already be pipe supports in there for that, so, bing careful you can re-use the existing ones

 

[denso13]

I meant a plastic fitting which may have identified the pipe. That's just a compression isolator.

 

[Jamie3147]

This is the only fitting I can see and the rest is under the floor boards metres away

 

[Madrab]

that's the old HEP pipe IIRC.

Try HEP inserts

 

[Jamie3147]

Ok great thanks

 

[denso13]

Make sure they are a snug fit, use a compression fitting if any doubt.

 

[Madrab]

@Jamie3147 - All pipework be it plastic or copper has an OD specification of 15mm, that allows their pipe to use standard sized compression fittings and olives as well as their own fittings. Through that standardisation it means that all fittings should be able to be used on all pipework. The trouble is when it comes to ID and plastic as that allows the each manufacturer to use its own inserts making the ID of their pipe very slightly different, be it through their manufacturing and construction design differences or just so they try to ensure that their own stuff is used in combination.

When it comes to guarantees though, the manufacturers will only guarantee their own specified pipe/fitting and insert combinations.

That being said I've yet to have any issue with any mix of pipe/solid insert and fittings, only one I wouldn't mix are JG's super inserts.