Working with detergents

Karcher pressure washers operate only at two pressures. 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 (–).

Step 1 Install the Vario spray wand. Set the Vario spray wand to the low pressure setting (–) by turning the wand collar. The wand must be set in the low pressure (–) position to apply detergents.

Step 2 Fill the detergent reservoir with Kärcher detergent. Place the filter end of detergent suction tube into the detergent reservoir

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. Do not allow detergent to dry on surface

For best results see Cleaning Tips on pages 9 & 10

for specific information on how to clean different surfaces.

Always Use Karcher Detergents for Best Results.

Karcher 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 Karcher Detergents, check your retailer or call:

In USA Call:

1-800-537-4129

or visit our website:

www.karcher-usa.com

The following Karcher detergents are available:

One Gallon ready to use

• Vehicle Wash

• Degreaser

All Purpose Cleaner • House Wash

Deck Wash

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Detergent Concentrate Tablets

(10 Pack; makes 1 1/4 gallon RTU product)

All Purpose

Degreaser

Deck and patio

Windows and Siding

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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 K 3.99 M specifications Working with detergents, Always Use Karcher Detergents for Best Results