Spray pressure in backpack sprayers can be supplied by which of the following?

Spray pressure in backpack sprayers can be supplied by which of the following?

• A. Lever-operated Manual Pump
• B. Engine-powered Pump
• C. Compressed Air Tank
• D. All of the Above

Answer: (D)

Backpack sprayers need a source of pressure to push the liquid through the nozzle. A lever-operated manual pump builds pressure directly in the tank by each pump stroke. An engine-powered pump does the same work automatically, driving a pump to pressurize the liquid. A compressed air tank uses stored air at high pressure to push the liquid out when you trigger the spray. Each method provides the necessary pressure, so all of the above can be used. The method chosen affects how you pressurize (manually, mechanically, or via stored air) and can influence how quickly you can spray and the spray characteristics, but they all achieve the same basic function.

Backpack sprayers need a source of pressure to push the liquid through the nozzle. A lever-operated manual pump builds pressure directly in the tank by each pump stroke. An engine-powered pump does the same work automatically, driving a pump to pressurize the liquid. A compressed air tank uses stored air at high pressure to push the liquid out when you trigger the spray. Each method provides the necessary pressure, so all of the above can be used. The method chosen affects how you pressurize (manually, mechanically, or via stored air) and can influence how quickly you can spray and the spray characteristics, but they all achieve the same basic function.