Newbie so apologies if this has been covered loads of times before.
Wish I had found this site long ago.
I want to fit a surface mounting basin (Tilly oval one) on a 3mm thick
work surface which is immediately on top of a 1.5cm thick unit.
Do I simply fit the waste to the basin and make a clearance hole for the
waste and its fittings to go through.
If I then silicon the basin to the worktop will this be sufficient or is
there something else I should do to hold it in place.
TIA for any help.