| Pressure washers can be used for a variety of indoor | | | | tri-mode system is best. Tri-mode pressure cleaners |
| and outdoor commercial and industrial cleaning jobs. | | | | offer all three kinds of output: cold water, hot water, |
| For outdoor applications such as cleaning sidewalks, | | | | and steam, to meet varying applications. |
| parking lots, driveways, and building exteriors, a | | | | Power Level |
| pressure washer is simply the best option. However, | | | | The output pressure level of a power washer is |
| finding the right pressure cleaner for use outdoors | | | | important in determining its power. The output |
| can be a bit more complicated. The following are | | | | pressure level can vary from 500 psi to 8000 psi. |
| some tips to select the right power washer for | | | | Higher pressure levels translate to higher cleaning |
| outdoor cleaning and graffiti removal jobs. | | | | power. Since each application is unique, pressure |
| Mobile or Stationary | | | | levels must be selected on the basis of the intended |
| One can classify pressure washing machines based on | | | | application. |
| their portability as mobile and stationary equipment. | | | | Another specification closely related to output |
| Mobile machines are best suited for outdoor cleaning | | | | pressure is the flow rate. It is a measure of the |
| jobs, as operators can more readily reach different | | | | quantity of water that flows through the output of |
| areas. Mobile equipment can be further classified into | | | | the machine, expressed as gallons per minute (GPM). |
| wheel-mounted machines and truck- or | | | | Usually, the flow rate increases along with the output |
| trailer-mounted machines. | | | | pressure. In some cases, where drainage facilities are |
| Wheel-mounted machines, as the name suggests, | | | | poor, one may have to select a machine with a low |
| have wheels attached to the base. The operator can | | | | flow rate. |
| push these machines to transfer them from one | | | | Graffiti Removal |
| place to another. This is ideal for small-sized machines. | | | | Removing graffiti and stains from compound walls |
| For bigger machines, it is better to select truck- or | | | | and sidewalks is very common outdoor cleaning job. |
| trailer-mounted equipment. It makes the cleaning job | | | | One can find commercial pressure washers specially |
| much easier since these machines can be transferred | | | | designed for the task of removing graffiti. These |
| via means of a vehicle. | | | | machines can blast away almost all types of graffiti |
| Output Temperature | | | | and stains. |
| There are three types of industrial pressure washers | | | | One can further improve the graffiti removing |
| according to output temperature: cold water, hot | | | | capability of these machines by using a green graffiti |
| water, and steam pressure washers. Cold water | | | | remover chemical in conjunction with the system. |
| pressure washers provide an output temperature at | | | | These chemicals do not cause any harm to the |
| room temperature; hot water machines have an | | | | environment or the operator, and are produced from |
| output temperature of 210°F, while steam machines | | | | plants and vegetables. The green chemicals contain |
| have an output temperature of 330°F. | | | | lifters and emulsifiers to encapsulate and emulsify |
| Of these three machines, steam output is the most | | | | paint molecules, bringing them to the surface to be |
| powerful as it readily dissolves stubborn deposits. | | | | blasted away. |
| After all, cleaning power increases as temperature | | | | To better match a machine to your specific |
| increases. | | | | applications, it is best to contact a product specialist |
| To reap the benefits of all three machines, a | | | | at one of the industry's top suppliers. |