"John F." wrote in message
...
Hello all..........How is venting handled for sinks in free standing
kitchen islands? Thanks. John

vent up to a 45 then to a 90 then to a 45 aiming down (Get all this as
high as possible under counter) then pipe down from 45 under floor and up a
wall and out the roof. You could pipe up to a 90 pointed horizontal then to
a 90 pointed down pipe from there under floor over to wall and up. If you
tie into an existing vent you must make your connection 6" above flood rim
of sink ( top of sink)