Positive displacement pumps trap a fixed amount of fluid and force it into the discharge pipe, ensuring a constant flow. There are two main types: reciprocating pumps, which use pistons or diaphragms to pump fluid, and rotary pumps, which use gears or screws. Dynamic pumps use rotational energy to accelerate and move fluid radially outward, converting the kinetic energy to pressure energy. The main type is centrifugal pumps, which use an impeller to spin and move fluid outwards into a diffuser for discharge. Centrifugal pumps are commonly used in construction, manufacturing, and other industries to transport liquids and slurries. However, they can experience problems like corrosion, leakage, wear, and overheating