Lack of control of the environment is often pinpointed as a cause of frustration and stress in confined animals. When the animal cannot control things, such as the feeding time or the lighting program, and when it cannot escape from things it finds unpleasant, it often behaves in a manner that indicates frustration.
Cavitation can also cause excessive pump vibration, which could damage pump bearings, wearing rings, and seals. A small number of centrifugal pumps are designed to operate under conditions where cavitation is unavoidable.
In particular, the following steps may be appropriate: 1  Increase the pressure level at the outlet of throttling valves. 2  Increase the inlet pressure at the pump suction port by supercharging the pump inlet. 3  Use anticavitation checks on negative load actuator applications.