WORKING WITH DETERGENTS

The high pressure setting is used for cleaning, you cannot apply detergents when working at high pressure. To apply detergents you must be operating at low pressure (“CHEM” position).

Step 1

Use triple nozzle, set to “CHEM” position, to apply detergents

Step 2

Adjust the filter end of the detergent tube for light (-), or maximum (+) detergent coverage. Place the filter end of detergent suction tube into the jug.

Always Use Kärcher

Detergents for Best Results.

Kärcher biodegradable detergents are specially formulated to protect the environment and your pressure washer. Special formula won’t clog the suction tube filter and will protect the internal parts of the pressure washer for a longer life.

For Kärcher Detergents, check with your dealer or call:

1-888-705-9444

The following detergents are available from your Kärcher dealer: Premium Vehicle Wash Heavy Duty Degreaser

Universal Detergent

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Step 3

Turn on the pressure washer. Pull trigger to operate unit: Liquid detergent is drawn into the unit and mixed with water. Apply detergent to work area, from bottom to top. Do not allow detergent to dry on surface.

Caution

Never use:

Bleach, chlorine products and other corrosive chemicals

Liquids containing solvents

(i.e., paint thinners, gasoline, oils)

Tri-sodium phosphate products

Ammonia products

Acid-based products

These chemicals will harm the unit and will damage the surface being cleaned.

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Karcher HD 425 specifications Working with Detergents, Always Use Kärcher Detergents for Best Results