Step 3. Spraying - North Star M157115C.2 Owner's Manual

•
It mixes the cleaning chemical into a low-pressure spray. Cleaning chemicals applied under low
pressure adhere better to the surface being cleaned, allowing the formula time to react and remove dirt
more effectively.
Note: An external chemical injector pump is not recommended for use with this pressure washer, and if
used would obviously alter the 15 to 1 dilution ratio.
WARNING: Chemical spraying
• Never spray acids, corrosives, or abrasive or flammable liquids. Breathing hazards, surface
burns/corrosion, or fire/explosion could result.
• Follow the chemical manufacturer's label instructions for proper use and handling of the
chemical. Understand all safety hazards and first aid for all chemicals being used. Always
wear protective gloves when handling and cleaning with chemicals and wear other
protective gear as directed by chemical manufacturer. Always dispose of hazardous fluids
per local, state, and national guidelines.
Acquire cleaning Use only NorthStar pressure washer chemicals or chemicals specifically formulated for
chemical use with pressure washers.
CAUTION: Non-approved chemicals can damage pressure washer components (seals,
Prepare for Prepare the pressure washer for chemical spraying using the following steps:
chemical spray
1. Prepare (dilute) chemical cleaning solution as required for the job.
(if planning to
use)
2. Press the braided
3. Submerge the suction
Safety rules for Before starting the pressure washer, review the following general safety rules for
operation:
operation
Know how to stop. Be thoroughly familiar with proper use of the equipment and all
Operation
wand, hoses, pump, etc.) and be harmful to the environment.
(Note: the chemical
solution will be
automatically mixed
with the water at a
ratio of 15 parts water
to 1 part chemical
solution.)
chemical hose over
the chemical injector
not on pump.
strainer connected to the braided chemical hose into a bucket containing the
chemical solution.

STEP 3. SPRAYING

controls and connections. Know how to stop the pressure washer and depressurize
system quickly if needed (see "Step 4. Stopping").
STRAINER
DILUTED
CHEMICAL
Conditions for Use
24
Fig157115_7
HIGH
PRESSURE
OUTLET
CHEMICAL
INJECTOR