Help with 35mm copper waste pipes

[robert.m.airside]

Hi all

I'm hoping someone can help me identify how to join existing copper 35mm (outer diameter) waste pipes to plastic 40mm and 32mm. I want to transition to plastic so I can fit easy compression or push fit fittings.

I am replacing my bath and sink.

I have already tried a compression waste reducer 32mm to 40mm and it feels loose using the 32mm end. Should I pack it out?

thanks

 

[terryplumb]

The 32 mm compression fitting should accommodate the 35 mm pipe ,are you saying that you have tried this and the 35 mm is loose into the 32mm compression ??

 

[robert.m.airside]

Hi Terry thanks for the reply. Because of you surprise it wasn't working I checked again. It was still extremely loose.

I then went to my garage and brought in some other 32mm waste compression fittings. They were tight on the 35mm copper. The other fittings had thicker tampered rubber sealed. Obviously a poorly manufactured part. Thanks.