G3 discharge material.

[kozak1968]

Can we use Polyplumb PB for unvented discharge or is it only PEX plastic as an alternative to copper.

 

[townfanjon]

As far as I know its push fit as long as the manufacturer says its suitable . I stand to be corrected !!

 

[ShaunCorbs]

No can't use plastic push fit pipe eg 15-22mm etc Needs to be high temp rated eg 100-110c

Either copper or waste pipe

 

[kozak1968]

I remember Chris Watkins saying about it on the G3 course but would like clarification of it. It would help out on some new build we are doing.

 

[kozak1968]

It appears that Polyplumb pipe is BS 7291 - 1 2010 which is suitable for unvented discharge pipe.

 

[ShaunCorbs]

It appears that Polyplumb pipe is BS 7291 - 1 2010 which is suitable for unvented discharge pipe.

That's for supply and hot distribution

 

[kozak1968]

This is what I found online. 3.57 is what I looked at and it quotes BS 7291 - 1 : 2006
https://www.gov.uk/government/uploa...207/BR_PDF_AD_G_2015_with_2016_amendments.pdf

 

[ShaunCorbs]

pg5

http://www.bbacerts.co.uk/CertificateFiles/36/3699PS1i1.pdf