no backflow preventer required???
no backflow preventer required???
(OP)
5,380 sf developer retail shell. the shell upfit drawings show two single user bathrooms (1 lav, 1 gravity flush toilet) plus 1 mop sink & 1 tank hot water heater.
is a backflow preventer required by code right after the water meter?
is a backflow preventer required by code right after the water meter?





RE: no backflow preventer required???