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Selecting the right type of impeller is essential for the pump's performance. For instance, if a pump is expected to handle a high volume of sewage containing large solids, an open impeller would be more effective. Conversely, if the pump is mainly handling gray water with minimal solids, a semi-open or enclosed impeller would suffice.

a. Manufacturer’s Selection Chart:

b. Impeller Design:

Wear Factors: Bearings can wear out due to the mechanical loads and need periodic lubrication and replacement.

 4. Check Pump Performance Curves

b. Selection Software:

 3. Consider Material and Design