| 摘要 |
Beneficial chemicals and water are dispensed by an irrigation system to vegetation served thereby. The irrigation system includes a water flow path in part defined by a housing of the inventive irrigation chemical dispenser. The dispenser housing includes a single-use disposable and replaceable chambered cartridge holding a premeasured supply of chemical material. The cartridge is sealingly closed by a penetrable diaphragm prior to and after its uniting with the remainder of the dispenser housing. Penetrating means are included by the dispenser for penetrating the cartridge diaphragm in response to a flow of pressurized water in the flow path, and also in response to an additional condition, if desired. The chemical material is then communicated to the flow path for dispensing to the vegetation served by the irrigation system.
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