Operating a sprayer pump without any liquid can cause serious damage to pump seals, bearings, and other working parts.

Operating a sprayer pump without any liquid can cause serious damage to pump seals, bearings, and other working parts.

• A. True
• B. False
• C. Only when using certain chemicals
• D. Only with electric pumps

Answer: (A)

Running a sprayer pump dry is dangerous because the liquid in the system also lubricates and cools the pump’s moving parts. Without liquid, there’s no lubrication film between seals, bearings, and other components, so friction and heat rise quickly. That can cause seals to crack or distort, bearings to wear or seize, and other parts to deteriorate, leading to leaks, loss of pressure, or pump failure. This risk applies to any pump and any chemical, not just a certain chemical or electric pumps. Always prime and fill the system and avoid running the pump without liquid.

Running a sprayer pump dry is dangerous because the liquid in the system also lubricates and cools the pump’s moving parts. Without liquid, there’s no lubrication film between seals, bearings, and other components, so friction and heat rise quickly. That can cause seals to crack or distort, bearings to wear or seize, and other parts to deteriorate, leading to leaks, loss of pressure, or pump failure. This risk applies to any pump and any chemical, not just a certain chemical or electric pumps. Always prime and fill the system and avoid running the pump without liquid.