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.
Operation
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.
1. 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
adjacent to the cleaning
area are protected by a drop cloth. This will
ensure that your plants won’t be sprayed by
the detergents.
2. Initial High Pressure Rinse
The next step is to spray the cleaning
surface with water to clear off any dirt or
grime that may have collected on the
surface. This will allow your detergent to attack the
deep down dirt that has worked its way into the
cleaning surface. Before triggering the gun, adjust
the nozzle to a wide fan pattern and slowly adjust to
the desired spray pattern. This will help you avoid
applying too much concentrated spray to the
surface which could cause damage.
3. Detergent Application
USE THE INSTRUCTIONS
APPROPRIATE FOR MODEL
PURCHASED
NOTE: Use only detergents formulated for
pressure washes.
NOTE: Test detergent in an inconspicuous
area before use.
Figure 7- Detergent application
Units with Detergent Applicator
Included
Follow manufacturer’s label directions for
mixing correct concentrations of detergent to water
ratio through the pressure washer is approximately
5.4% (1 to 19).
1. Unscrew to top of detergent applicator and fill
applicator with detergent.
2. Replace top on applicator.
3. Remove lance from gun.
4. Attach detergent applicator to gun. ( See
Figure 8)
5. Apply detergent so it thoroughly covers
cleaning surface. Apply from bottom to top
to prevent detergent from sliding down and
streaking.
6. Allow detergent to remain on the surface
for a few minutes. This is a good time to use
a brush to lightly scrub heavily soiled areas.
Never allow detergent to dry on the
cleaning surface.
7. Remove detergent applicator from gun
and replace with the lance, or remove
applicator from end of lance.
8. Rinse detergent from surface.
NOTE: Flush detergent applicator with
clear water following each use.
4. Final Rinse
Start final rinse at bottom an work upward. Make
sure you thoroughly rinse the surface
and that all detergent has been removed.
5. Shut down
1. Be sure all detergent is flushed from system.
2. Turn off motor.
3. Turn off water supply.
4. After motor and water supply are turned
off, trigger gun to depressurize system.
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