What is the purpose of an agitator?

• A. To maintain a uniform spray mix and keep particles suspended
• B. To heat the tank
• C. To filter the liquid
• D. To measure spray volume

Answer: (A)

Keeping the liquid in the spray tank well mixed is the main job of an agitator. Many spray formulations are suspensions or contain materials that tend to settle out or separate over time. If the mixture isn’t kept in motion, solids can fall to the bottom or separate from the liquid, leading to uneven concentration and clogged or inconsistent spray once you start applying. The agitator, usually a motor-driven propeller or paddle, continuously stirs the contents so the active ingredients stay evenly distributed and the spray concentration stays consistent from start to finish. It isn’t used for heating, filtering, or measuring; those functions come from other equipment in the system.