In message , Peter
Taylor writes

"Vass" wrote in message
.uk...
Any reason why I can't connect my wash basin waste to the Bath waste
before it goes out through the wall?
-- Vass

If you're not worried about the basin water coming up through the bath
plughole,

Never happened on ours, seems pretty unlikely.

and not concerned about going against Building Regulations and all good
advice, then no.

Is it against building regs?

Our old house had the wastes combined. You may find that you get get
gurgling from the other was, this can be sorted with an air admittance
trap.
--
Chris French