Is cavitation good for a liquid pump?

Cavitation is generally detrimental to liquid pumps, which makes the statement that it is good for a liquid pump incorrect. Cavitation occurs when the pressure in the liquid drops below its vapor pressure, causing the formation of vapor bubbles within the pump. When these bubbles collapse or implode, they can generate shock waves and result in pitting and damage to the pump components such as the impeller and casing. This damage can lead to reduced efficiency, increased maintenance costs, and ultimately pump failure.

While there may be specific scenarios where the effects of cavitation can be managed or minimized, in general practice and for standard applications, cavitation is not beneficial to pump operation. Therefore, the idea that cavitation is good for a liquid pump is fundamentally misguided. Understanding the mechanisms and implications of cavitation is essential for effective pump operation and maintenance, which underscores why the assertion that it is good is simply incorrect.