Pipe sizes

[Pocster]

Grrr 😡 

 

32mm pipework everywhere ( 36mm outer ) . Saniflo fitting ; pipe too large I.e needs to be 32mm internal . Saniflo phone call confirms this . So I need a very short length of 32mm external . Any brands where this is true ? - floplast it certainly isn’t .

 

Or is this a push fit pipe v’s solvent weld size difference ??

Edited October 6, 2022 by pocster

[Carrerahill]

What is the coupling on the sani? Compression?

 

I think solvent weld is 36mm OD but push fit pipe is smaller...

 

Edited October 6, 2022 by Carrerahill

[Pocster]

Just now, Carrerahill said:

What is the coupling on the sani? Compression?

 

Yes 

 

[Carrerahill]

1 minute ago, pocster said:

Yes 

 

I'd have thought it would have taken the 36mm as the compression is often the open used when going from solvent to pushfit change over. 

 

I think you will find pushfit pipe will fit. 

[Pocster]

Found this 

 

https://www.ondemandsupplies.co.uk/plumbing-blog-on-demand-supplies/why-does-waste-pipe-come-in-different-sizes-32mm-and-36mm-40mm-and-43mm/

 

So still must find presumably 32mm (external )push fit pipe 

[Carrerahill]

Just now, pocster said:

Found this 

 

https://www.ondemandsupplies.co.uk/plumbing-blog-on-demand-supplies/why-does-waste-pipe-come-in-different-sizes-32mm-and-36mm-40mm-and-43mm/

 

So still must find presumably 32mm (external )push fit pipe 

https://www.screwfix.com/p/floplast-push-fit-pipe-white-32mm-x-3m/26334 that must fit - surely Sani don't make it so damn awkward?!? 

Edited October 6, 2022 by Carrerahill

[Pocster]

2 minutes ago, Carrerahill said:

https://www.screwfix.com/p/floplast-push-fit-pipe-white-32mm-x-3m/26334 that must fit - surely Sani don't make it so damn awkward?!? 

Funnily enough the saniflo guy checked exactly that . It just says 32mm so internal / external ? . 
its floplast so assume 36mm external - which is too large ..

Edited October 6, 2022 by pocster

[Carrerahill]

5 minutes ago, pocster said:

Funnily enough the saniflo guy checked exactly that . It just says 32mm so internal / external ? . 
its floplast so assume 36mm external - which is too large ..

Floplast solvent is 36mm but pushfit is smaller. 

 

From floplast:  

 

32mm is a nominal size. There is a tolerance allowed within the pipe dimensions so the internal diameter is between 29.6mm - 31.2mm and the outside diameter is between 34.4mm - 34.8mm.

Edited October 6, 2022 by Carrerahill

[Pocster]

No (expletive deleted)ing plumbers on this forum are there .

I put the rubber fitting in boiling water . It’s the tightest rubber I’ve ever put on but does fit 😉

[markc]

5 minutes ago, pocster said:

No (expletive deleted)ing plumbers on this forum are there .

I put the rubber fitting in boiling water . It’s the tightest rubber I’ve ever put on but does fit 😉

Too much info 😳

[Russell griffiths]

I’m confused. 

How are you going to get a dirty great Richard the third down that little  pipe. 

[markc]

Just now, Russell griffiths said:

I’m confused. 

How are you going to get a dirty great Richard the third down that little  pipe. 

Vindaloo

[Pocster]

Whilst rummaging through my plumbing box ( not a euphemism ) I found 2 other poly pipe segments . No markings on them but a few mm difference on all of them .

[joe90]

I think I remember using an odd size pipe (push fit??) with difficulty into a compression fitting and needing a thinner rubber seal ring 🤔