.VALVE BACKUP FLOAT 2"" Backup valve shall install into vertically oriented drainage pipe and allow water to drain through freely under normal operation. During back-up situations float shall seal valve and prevent water backup through drain fixture.
.VALVE BACKUP FLOAT 2"" Backup valve shall install into vertically oriented drainage pipe and allow water to drain through freely under normal operation. During back-up situations float shall seal valve and prevent water backup through drain fixture.