Liquid applicator

A liquid applicator for dispensing a chemical in dilute aqueous form comprising in combination

• conduit means adapted at one end thereof for connection with a source of water under pressure and at another end thereof for the discharge of said water containing a chemical in dilute aqueous form therein, said conduit means comprising at least two aqueous passageways,
• control means at the water source end of said conduit for controlling the flow of water to said aqueous passageways,
• at least two containers connected with said conduit means, the first container adapted to contain a concentrated liquid chemical therein, the second container adapted to contain the chemical premixed with water,
• the first passageway of said conduit means leading from said water source to said second container and containing a first stage aspirator therein for withdrawal of liquid from said chemical container, the second passageway leading from said water source to the discharge end of said conduit and containing a second stage aspirator therein for withdrawal of liquid from said premix container, the passageways thereby connecting said containers in series so that concentrated chemical from said first container is premixed with water and passed into said second container and the premix is thereafter further diluted with water and discharged from the applicator.