Just got a new washing machine and found out (the hard way) that the pump is
rather faster than the on the old machine.
The current waste is 32mm (yes, I know!) that has been OK for 30 years or so
and is clear right through.
I need to fit 40mm, but making the hole (which, IIRC, is just big enough for
the 32mm) up to, say 50mm, would be rather difficult with a core drill.

Any ideas please on a way to do it - only SDS and chisel seem possible.
--
Peter.
The gods will stay away
whilst religions hold sway