Lobster wrote:

... however the above are 40mm pipe, I don't know if you can narrower
ones to accept condensate pipe, but you can certainly get them to fit a
40mm pipe (not from Screwfix), so at worst you might need to use two and
step down via a bit of 40mm pipe.

You can certainly get a rubber bung to drop 40mm to 20mm - I used on for
exactly that purpose to allow the condensate drain to feed into a
washing machine style stand pipe.


--
Cheers,

John.

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