| abstract |
A feeder device for introducing a chemical into a flow of water includes a feeder inlet (36) and a feeder outlet (38), a reservoir (74) of the chemical in solid form and having a foraminate lower portion (70), a first conduit (80) having an outlet (78) and in communication with the feeder inlet (36) in at least a first feeder condition, a wall (82) surronding the conduit outlet (78) and extending upward thereof, and an outlet chamber (84) receiving overflow containing the dissolved chemical and in communication with the feeder outlet. |