In message , OldScrawn
writes
Anyway think I'll start buying new buckets in future

Get one of the flexible moulded jobs with integral handles. You can just let
plaster and (ten times worse) grout set in these, then knock and flex them and
it all falls out. Can't remember the name but "farm supplies" places stock them

'TubTrugs' well that's one brand name at least.
--
Chris French, Leeds