Where can I get a reducer

silentmonkey · 1 Jul 2006

Just fitting a new bathroom sink and found that the waste pipe is 1 1/2inch (38mm) The new sink/trap is 32mm. I need a reducer. I've tried B&Q and a google search but no luck.

Does any one know where I can get a 1.5inch (38mm) to 32mm reducer?

tincup · 1 Jul 2006

Hi

A local building merchants should be able to help.

Online: screwfix.com

Hope this helps.

RF Lighting · 1 Jul 2006

silentmonkey said:
Just fitting a new bathroom sink and found that the waste pipe is 1 1/2inch (38mm) The new sink/trap is 32mm. I need a reducer. I've tried B&Q and a google search but no luck.

Does any one know where I can get a 1.5inch (38mm) to 32mm reducer?

Now I'm no plumber but is this what you're after? Click Here

doitall · 1 Jul 2006

or.

http://www.screwfix.com/sfd/i/cat/38/p1066438_l.jpg

I would be amazzzzed if B&Q don't stock them, bread and butter, everyday fitting.

breezer · 1 Jul 2006

i have seen 40 -32 reducer like the small picture in b & q but not 1/2 inch reducer, the screwfix thing looks better

silentmonkey · 1 Jul 2006

Thanks guys but these are all 40mm to 32mm I need 1-1/2 inch (38mm) to 32mm.

chrishutt · 1 Jul 2006

40mm is a nominal measurement to cover anything around that size. You need to check the exact outside diameter of the nominal 40mm pipe. It may be 43mm or 41mm, since there are two different standards. Most pushfit is the 41mm size and most solvent weld the 43mm size.

silentmonkey · 2 Jul 2006

Sorry, I got the measurements wrong. I assumed 1.5inch/38mm from the drainage article. I've just measured the pipe with a vernier and the outside diameter is 36mm and the inside is 32mm.

A 32mm coupler is too small while a 40mm coupler is to large. So what size pipe is this? And where can I get a reducer to 32mm from?

chrishutt · 2 Jul 2006

32mm is also a nominal size. The pipe with an OD of 36mm is nominal 32mm. What sort of outlet does your 32mm trap have? Is it compression? It should fit the pipe. Again there are two slightly different ODs with nominal 32mm, so that may explain why some fittings don't marry up.

silentmonkey · 2 Jul 2006

Thanks chris

The new sink is further away from the wall than the other. I first tried a 32mm to 32mm push fit coupler to extend the pipe but it would not fit. The internal diameter of the connector is 35mm where as my pipe is 36.3mm and therefore will not fit. Are you saying if I purchase a 32mm compression style coupler instead of the push fit it will fit? If so you've just saved my life...

chrishutt · 2 Jul 2006

Yes, a 32mm compression connector will fit both sizes of 32mm pipe.

silentmonkey · 2 Jul 2006

Thanks guys. The problem is solved. All I really needed was a 32mm Compression coupler. So for the DIY'ers on this board let me summarize my problem and the mistakes I made.

1) I tried to extend the sink waste using a 32mm push fit coupler. It did not fit as the waste pipe is too large.
2) Tried using a 40mm push fit coupler. It did not work as the Waste pipe is too small.
3) I incorrectly assumes I needed a reducer because of some imperial/metric issue.

The professionals on the board have pointed out that the 32mm and 40mm are nominal sizes and in fact vary depending on the system used. (Push fit/compression or Solvent as in my case) And where these types come together then a 32mm Compression joint will handle all sizes within the 32mm range.

For the Professionals on the board: Sorry for stating what must be the Bleeding obvious. But you love us DIY'ers really as it gives you stories to tell your grandchildren.

Nige F · 2 Jul 2006

Best bit of the story was plumbing with a Vernier

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Where can I get a reducer

breezer

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