Inside the plating tank itself, the primary spray-equipment challenge is not spraying at all but mixing — plating solutions need continuous agitation to keep metal salts and additives evenly distributed, and heating or air-sparging solutions need a reliable way to circulate without introducing contamination. An eductor mounted in or fed from a plating tank uses the energy of a pumped liquid stream to entrain and mix additional solution, providing agitation without the maintenance burden of a mechanical mixer running continuously in a corrosive bath. Material selection is critical here, since the eductor sits in direct, sustained contact with acidic or caustic plating chemistry. BEX manufactures eductors engineered for continuous duty in corrosive plating baths, available in stainless steel, cast iron and plastic.