Remedial Methods

Abstract

It is often very costly and time-consuming to determine the cause of a malfunction directly. Often, it is faster and less expensive to try a simple remedy and see whether it works. In other cases, performance of a pump needs to be modified for one or more of the following reasons:

• 1. The actual resistance to flow of the pumping system is different from the calculated one. (e.g., owing to differences in the actual smoothness of the wetted surfaces, and so forth).

• 2. Time-related changes such as buildup of scale or rust in pipelines or seasonal (or permanent) changes in water levels of the well, the river, and so forth, from which the pump draws its supply of liquid.

• 3. Temporary or permanent changes in demand, such as changes in the production schedule of a processing plant, in the population, or in the manufacturing facilities located within a certain municipality.

• 4. Temporary or anticipated changes in the availability of an adequate power supply, or an anticipated increase in its availability. Similarly, a pump may have to operate under certain conditions for a limited time only, and later these conditions are expected to change.