Abstract: Systems and methods for dispensing chemicals include a flush manifold including multiple intake ports and an outlet port. An eductor includes an inlet port fluidically coupled to a source of a diluent, a pickup port fluidically coupled to a source of a chemical product, a discharge port fluidically coupled to an intake port of the flush manifold and configured to discharge a chemical solution, and a venturi fluidically coupled to each of the inlet port, the pickup port, and the discharge port. The venturi is configured to draw the chemical product into the eductor in response to the diluent being coupled to the inlet port to form the chemical solution. A check valve is fluidically coupled to the outlet port of the flush manifold and arranged to maintain the flush manifold substantially full of fluid between dispensing operations. A vent valve fluidically coupled to an outlet of the check valve.

Abstract: Systems and methods for dispensing chemicals include an eductor having a diluent inlet, a chemical pickup port, a discharge port, and a venturi fluidly coupled between the diluent inlet and the discharge port. A diluent valve having an outlet is coupled to the diluent inlet. A chemical manifold includes a plurality of chemical inlets and a chemical outlet fluidly coupled to the chemical pickup port. A plurality of chemical valves are each coupled to one of the plurality of chemical inlets; and a controller is communicatively coupled to the diluent valve and the plurality of chemical valves and configured to operate the diluent valve and the chemical valves to dispense measured doses of individual chemicals through the chemical pickup port.