I've bought one of these bottle traps (and paid over double that price in B&Q I need to learn not to buy things as soon as I see them lol) to save space under a new sink.
http://www.tapstore.com/acatalog/Wirquin-Espace-Extra-Flat-Bottle-Trap.html
If you look at the diagram at the below link, you will see that the waste outlet will only allow for a 40mm OD pipe (I've tried a Marley 41mm OD push-fit pipe and this won't fit) and they suggest using an adaptor from 40mm to 43mm to connect to a 43mm solvent weld pipe.
http://www.tapstore.com/acatalog/31000201_TECH.jpg
My question is where can I get such a fitting?
http://www.tapstore.com/acatalog/Wirquin-Espace-Extra-Flat-Bottle-Trap.html
If you look at the diagram at the below link, you will see that the waste outlet will only allow for a 40mm OD pipe (I've tried a Marley 41mm OD push-fit pipe and this won't fit) and they suggest using an adaptor from 40mm to 43mm to connect to a 43mm solvent weld pipe.
http://www.tapstore.com/acatalog/31000201_TECH.jpg
My question is where can I get such a fitting?