Inlet Water Flow and Preventing Cavitation: Why you must not starve your pressure washer of water
In the world of high-pressure cleaning equipment, maintaining the health of your pressure washer pump is paramount. One often underestimated but critical factor in achieving this is the proper management of inlet water flow. In this article, we will delve into the significance of maintaining adequate water flow and the potential dangers associated with cavitation.
The Basics of Inlet Water Flow:
Understanding the mechanics of a pressure washer pump is essential to grasp the importance of proper inlet water flow. Pressure washers utilise positive displacement pumps, designed to pump a specific amount of water continuously. When the rated amount of water is not provided, a vacuum is created within the pump, initiating a chain of events that can lead to severe damage.
Dangers of Cavitation:
Cavitation is a phenomenon that occurs when the pump is starved of water, leading to the formation of a vacuum and subsequent suction of air from any leaks in the system. This air, when drawn into the pump, causes cavitation, a destructive process with various detrimental effects.
1. Soft Component Damage:
Cavitation can rapidly deteriorate the pump's soft components, such as seals and o-rings. These essential parts are crucial for maintaining the integrity of the pump and preventing water leakage.
2. Hard Component Damage:
Continued cavitation extends its impact to the pump's hard components, including valve seats, connecting rods, and plungers. In severe cases, it can even result in the cracking of pump heads, rendering the pressure washer completely inoperable.
Preventing Cavitation:
To safeguard your pressure washer from the dangers of cavitation, several preventive measures should be taken:
1. Adequate Water Supply:
Ensure that the pump receives the rated amount of water to prevent the creation of a vacuum. Inlet plumbing, such as garden hoses, should be at least 1 1/2 times the size of the water inlet on the pump.
2. Leak-Free Plumbing:
Regularly inspect and maintain all plumbing components to eliminate leaks that could contribute to air being drawn into the pump.
3. Avoiding Restrictive Factors:
Factors like bends, turns, valve restrictions, and an excessively long inlet hose can impede water flow, leading to poor pump performance.
4. Proper Inlet Water Quality:
Ensure that the water supply is free from turbulence, and avoid using hot inlet water, as these conditions can negatively impact inlet water flow.
Inlet water flow is a fundamental aspect of maintaining a pressure washer's pump in optimal condition. Understanding the dangers of cavitation and taking proactive measures to ensure proper water flow is essential for preventing unnecessary damage and extending the life of your pressure washer. By prioritising these considerations, you can enhance the efficiency and longevity of your high-pressure cleaning equipment, ultimately improving the overall performance of your business operations.