Step 2. Set Up For Chemical Spray (If Desired) - North Star 157208 Owner's Manual

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Using the proper cleaning chemical for the application can speed up cleaning jobs tremendously.

Your pressure washer is equipped with a chemical injection point on the downstream side of the

pump for introducing cleaning chemicals into the water stream. A braided chemical hose is

provided to connect at this point. Suction pressure at this connection automatically draws the

chemical solution in through the hose, mixing in 1 part chemical to 15 parts water. Adequate

suction pressure is created only when the low pressure (black) spray nozzle is used.

The introduction of cleaning chemicals via the chemical injection point affords the following

advantages:



It protects the pump from damage because no chemical passes through the pump.

CAUTION: Certain chemicals, such as bleach or those containing muriatic acid, will

cause pump damage if introduced upstream through the pump's water inlet.



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:

 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.

Use only NorthStar pressure washer chemicals or chemicals specifically

Acquire

formulated for use with pressure washers.

cleaning

chemical

CAUTION: Non-approved chemicals can damage pressure washer components

Prepare the pressure washer for chemical spraying using the following steps:

Prepare for

chemical spray

1. Prepare (dilute) chemical cleaning solution as required for the job.

(if planning to

use)

2. Press the braided chemical hose over the chemical injector on the pump.

3. Submerge the suction strainer connected to the braided chemical hose into a

Operation