Sometimes when looking at pressure cleaners you can find there is a large range to choose from. To choose the right model for your application is very important, therefore the more information you have when purchasing, the better.

First of all water flow (referred to as liters per minute or LPM) that the machine pumps is one of the most important things to look at. The more liters per minute gives an indication of the time it would take to do a job. As an example, you could compare the water flow from a garden hose as opposed to a fire hose. This is why the liters per minute (or LPM) is so important.

The higher water flow has a better cleaning effect and end result because the water is the actual element that cleans. Many people are of the general belief that the larger the pressure (PSI) is the better the machine is which will give a better cleaning performance, however this simply is not the case. Pressure cleaners delivering 10 liters of water per minute at an operating pressure of 1600 PSI will clean much better and quicker and achieve a much better result than a machine delivering 7 liters a minute at 2000 PSI. So this goes to show the water flow rate is an integral element to consider when purchasing a pressure cleaner.

The second thing to look at is pressure which is needed to remove whatever substance you are trying to clean e.g dirt, grease, mould. Whilst we’ve talked about flow rate being important, it is the combination of flow rate and pressure which gives you the results you are wanting. A pressure cleaner delivering a flowrate of 10 liters per minute at 1500 PSI will not clean nearly as well as pressure cleaners delivering 10 liters at 2000 PSI which is different again to a cleaner delivering a flowrate of 7 liters at 2000 PSI.

The next thing to consider is how much work you have for the pressure cleaner for example cleaning around the house car and boat or in a business using the pressure washer three or four hours a day. This is important because when looking at the pressure cleaners there are a lot of differences in construction.

Typically, there are two types of motors which are used on most machines. There is the brush motor and the induction motor. Brush motors are generally found in smaller machines which suit light application use and should only be used for small periods at a time. If you are looking to use a machine for heavy application, an induction motor is a must.

Pump construction is another that should be looked at closely. There are generally three different types of pump constructions found within the industry.
Constructions to consider are

Motor type and size e.g brush motor or induction motor
Brush motor for small domestic use
Induction motor for more heavier usage e.g large concrete areas and industrial use

Pump construction
Fibre anti lime – light domestic use
Alluminium – heavier usage
Brass – industrial

Be sure to buy the right machine for the right application not just on price.


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