| 摘要 |
A device for delivering a chemical to an area includes a chemical supply tank and, optionally, a solvent supply line. The device includes a controller that delivers the chemicals, or a mixture of the chemicals and solvent, and actuates flow of the chemicals or chemical-solvent mixture from the controller. Optionally, the actuator includes a timer in combination with a pump and/or control valve. The chemicals or chemical-solvent mixture is delivered to a feed line, optionally through a filter and flow controller, to a dispenser.
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