Push fit pipe problem

[Iankkk]

I am trying to combine some push fit waste pipes that go directly into the outside drain. They are 34mm. Can anyone tell me where I can get this size? It all seems to be 32 or 40 mm. Thanks

 

[ShaunCorbs]

11/4 aka 32mm if your combining it tho need to step it up a size eg if your putting two into one etc

 

[JCplumb]

If your pipe diameters are a couple of mm different you probably have a combination of push fit pipe and solvent weld.
Use a multifit coupler or elbow from McAlpine to connect them.