Flow control aerator

A water aerating device including a housing having a water inlet and outlet, screen means associated with said housing outlet, partition means in said housing positioned upstream of said screen means, air passage means in said housing in communication with the downstream side of said partition means, said partition means including a plurality of annularly arranged water passages extending therethrough, circumferential outer wall means integral with said partition means and extending upstream therefrom, circumferential inner wall means integral with said partition means and extending upstream therefrom, an annular flow control member formed of a distortable material positioned between and by said wall means and positioned to partially mask the upstream end of said partition means water passages, said annular member and wall means cooperating with each passage to form entrances thereto on opposite sides of said annular member.