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Spraying water against a surface at this angle provides for the most beneficial impact force
combined with efficient removal of debris from the surface.
Distance from cleaning surface
Another factor that determines the impact force of the water is the distance from the spray
nozzle to the cleaning surface. The impact force of the water is increased as the nozzle is
moved closer to the surface.
How to avoid damaging surfaces
Damage to cleaning surfaces occurs because the impact force of the water exceeds the
durability of the surface. The impact force can be varied by controlling the three previously
noted items. Never use a narrow high impact stream or a turbo/rotary nozzle on a surface
that is susceptible to damage. Avoid spraying windows with a narrow high impact stream or
turbo nozzle as this may cause breakage.
The recommended way to avoid damaging surfaces is as follows:
-
Before triggering the gun, adjust the nozzle to a wide fan pattern.
-
Place the nozzle approximately 4-5 feet from and 45 degrees to the cleaning surface,
and trigger the gun.
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Vary the fan pattern spray angle and the distance to the cleaning surface until optimum
cleaning efficiency is achieved without damaging the surface.
Turbo nozzle
(NOT INCLUDED WITH ALL MODELS)
A turbo nozzle, sometimes referred to as a rotary nozzle, is a very effective tool that can
significantly reduce cleaning time. The turbo nozzle combines the power of a narrow high
impact stream and the efficiency of a 25 degree fan pattern. This swirls the narrow high
impact stream into a cone shape that cleans a larger area.
CAUTION:
Since a turbo nozzle uses a narrow high impact stream, only use it in
applications where the cleaning surface cannot be damaged by narrow high impact spray.
Additionally, the turbo nozzle is NOT adjustable and cannot be used to apply detergent.
Detergents
The use of detergents can dramatically reduce cleaning time and assist in the removal of
difficult stains. Some detergents have been customized for pressure washer use on specific
cleaning tasks. These detergents are approximately as thick as water. The use of thicker
detergents, such as dish soap, will clog the chemical injection system and prevent the
application of the detergent. The cleaning power of detergents comes from applying them to
a surface and giving the chemicals time to break down the dirt and grime. Detergents work
best when applied at low pressure. The combination of chemical action and high pressure
rinsing is very effective. On vertical surfaces, apply the detergent starting at the bottom and
work your way upward. This will prevent the detergent from sliding down and causing
streaks. High pressure rinsing should also progress from the bottom to top. On particularly
tough stains, it may be necessary to use a brush in combination with detergents and high
pressure rinsing.
The following cleaning procedure will help you to organize your cleaning task, and ensure
that you achieve the most beneficial results in the shortest amount of time. Remember to
use the spraying/cleaning techniques previously listed.
Surface preparation
Before starting a pressure wash cleaning job, it is important to prepare the surface that is to
be cleaned. This is done by cleaning the area of furniture, and making sure that all windows
and doors are closed tight. In addition, you should make sure that all plants and trees
Last updated 14/02/2014
Version 1.2
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