- Not sure whether to choose a centrifugal or diaphragm pump? Know the difference between centrifugal pumps and diaphragm pumps before you buy. When you want to move liquid from one place to another, a portable water pump is a great piece of equipment for the job. But not all pumps are created equal. Some can transfer thicker liquids that contain solids… while some can’t. So it’s important to know how the different types ...

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