OK probably dumb question. I've been replacing fitting the utility room
waste with 40mm pipe and compression joints, but one spot I need a 135
degree pushfit.

Got one off Ebay advertised 40mm but it's stamped '1.5" / 38mm" and I
can't get it on the pipe. Should it fit? Those 2mm make all the
difference - I've tried chamfering the edges but it won't go.

I thought all 40mm solvent weld/compression/pushfit pipe and fittings
were pretty much interchangeable.


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