| 摘要 |
A liquid applicator for dispensing a chemical in dilute aqueous form. The applicator comprises a conduit adapted at one end for connection with a water source and at another end for the discharge of a chemical in dilute aqueous form. Two containers are connected with the conduit one adapted to contain a concentrated liquid chemical, the other adapted to contain the chemical premixed with water. The containers are connected with the conduit in series with a two stage aspirator so that concentrated chemical from the first container is mixed with water and passed into the second container and the mixture is then further diluted and discharged from the applicator.
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