| abstract |
A passive dispenser for codispensing a predetermined volume of a first and a second solution into a body of liquid in response to a decrease in the level of said body of liquid comprising a first product chamber having a vent conduit and a refill/discharge pathway, and a second product chamber serially connected to a third product chamber thereabove by means of a conduit entering the second product chamber proximate the bottom thereof, said second and third product chambers having respective vent conduits and said second product chamber having a refill/discharge pathway, said pathways being siphon conduits. |