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One of the most critical determinants of price is the motor type and power output. Electric high-pressure washers, which are quite common for residential use, usually range from 1300 to 3000 PSI (pounds per square inch). Higher PSI ratings correlate with more powerful cleaning capabilities, making them ideal for tough jobs like removing grease or mud. Conversely, gasoline-powered models typically offer even higher pressure ratings, appealing to those who work in more demanding environments. These units, however, tend to come at a higher price point, reflecting their superior performance and durability.
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There are several types of impellers used in sewage pumps, each with distinct features catering to various types of sewage applications. The most common types include open, semi-open, and enclosed impellers. Open impellers have no front shroud, allowing for larger solids to pass through without clogging. This makes them ideal for handling raw sewage containing debris. Semi-open and enclosed impellers, on the other hand, are more suitable for cleaner liquids, offering better efficiency and pressure generation.
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