tried fitting my waste to belfast (butler's) sink, but it leaks, so I must have got it wrong!
2x spongy foam looking washers
1 nut for threaded waste
I arranged like this (from top down)
should I have used silicone instead of boss green? or boss white instead?
not sure what I did wrong.
because the bottom of the belfast is rough and unfinished, I obviously have to do something special.
any pointers gratefully received!