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Pressure washing can be time saving and can help the environment by saving  water and energy. The pump is the most important part of the washer, which  delivers the water, or the cleaning liquid, with high pressure. However, one  must be careful in choosing the right pump, depending on the intended use of the  washer.

There are basically three types of pumps for use with pressure  washers:

For economic consumer pressure washers, there are pumps which some  manufacturers offer in ready made kits to replace or upgrade the pump in some  models. They are designed in mind for those with little or no experience or  mechanical knowledge. They are designed more for those washers used at home or  for occasional use. They can also be personalized to fit certain brands and  models, so the user only has to do is move aside the old plumbing, remove the  old washer pump and install the new one. These pumps are intended for giving the  home pressure washer more power and PSI. However, it is important to remember  that these pumps are intended for occasional home use only.

If the washer will be used in a light commercial environment, and will be  given a more than occasional use, then there are more powerful pressure washer  pumps capable of increasing the output volume and pressure. These pumps are  usually made of ceramic coated stainless steel pistons, angular contact ball  bearings and are made of heat treated steel for extended life.

Generic commercial or industrial pressure washers might require some  adjustments to take full advantage of them, and for these washers with a heavier  and more frequent workload it is recommended to use a hi-grade washer pump.  These are highly specialized and are designed to be used in particular  situations: chemical spills cleaning, high temperature, oil cleaning or any  other extreme conditions. For these types of pressure washer pumps, the user  should definitely turn to the dealer or manufacturer for proper installation and  configuration of the washer and pump.