Karcher 9.803-789.0 General Purpose Cleaner – 5 Gallon

Low-foaming, concentrated pressure washer detergent for cleaning buildings, vehicles, machinery, equipment, concrete, decks and other washable surfaces.

Professional General-Purpose Pressure Washer Cleaner

Karcher General Purpose Cleaner is a concentrated, low-foaming detergent formulated to remove everyday dirt, road film, oily residue and grime from a broad range of washable surfaces. The formula is designed to pass through compatible pressure washer detergent systems without damaging the high-pressure pump when used according to the manufacturer's directions.

Its versatile formula can be used around homes, commercial buildings, shops, garages, fleet facilities, farms and industrial work areas. It works well in hard water and can be applied with either hot-water or cold-water pressure washing equipment.

Recommended Applications

Compatible Surface Types

When properly diluted and tested before use, the manufacturer identifies this cleaner for use on many common materials, including:

• Aluminum
• Stainless steel
• Glass
• Plastic
• Painted surfaces
• Fine automotive finishes

Features and Benefits

• Highly concentrated: Standard dilution is only 1 ounce per gallon of water.
• High product yield: One 5-gallon pail can make approximately 655 gallons of ready-to-use solution.
• Low-foaming formula: Helps make pressure washer application and rinsing easier.
• Pressure washer compatible: Formulated for use through compatible pressure washer detergent systems.
• Multiple applications: Suitable for buildings, equipment, vehicles and general maintenance cleaning.
• Hard-water performance: Formulated to continue working well in hard-water conditions.
• Phosphate-free formula.
• Zero percent California Consumer Products VOC at the recommended 1:128 dilution.
• Suitable for indoor or outdoor cleaning when adequate ventilation and appropriate wastewater controls are provided.

Mixing Instructions

For general cleaning, mix at a 1:128 dilution ratio, equal to approximately 1 fluid ounce of cleaner per gallon of water. The concentration may be adjusted according to the severity of the soil and the surface being cleaned.

Stubborn areas may be pretreated with a stronger solution after confirming surface compatibility. Less detergent may be required when using a hot-water pressure washer.

Application Directions

1. Read the product label and Safety Data Sheet before use.
2. Mix the cleaner with water at the appropriate dilution.
3. Test the solution on an inconspicuous area.
4. Apply the diluted detergent from the bottom of the surface upward.
5. Allow the solution time to penetrate the soil, but do not allow it to dry on the surface.
6. Rinse thoroughly with clean water from the top downward.
7. Comply with local wastewater collection, runoff and disposal regulations.

Product Specifications

What Is Included?

• One Karcher 9.803-789.0 General Purpose Cleaner
• One 5-gallon commercial container

Pressure washer, chemical injector, spray equipment, measuring containers and accessories are not included.

Frequently Asked Questions

Is this listing for one gallon or five gallons?
This listing is for one 5-gallon pail. Karcher part number 9.803-789.0 is the 5-gallon package.

Can this cleaner be used in a pressure washer?
Yes. It is formulated for application through compatible pressure washer detergent systems. Follow the pressure washer manufacturer's chemical-injection instructions and never place detergent into a tank or pump that is intended only for clean water.

How much cleaner should I use?
The general-use recommendation is 1 fluid ounce of concentrate per gallon of water. Adjustments may be needed for heavier or lighter soil conditions.

How much ready-to-use solution does one pail make?
At the recommended 1:128 dilution, the manufacturer states that one 5-gallon pail makes approximately 655 gallons of cleaning solution.

Can it be used on vehicles?
The manufacturer lists cars, trucks, RVs and fine automotive finishes among the recommended applications. Always dilute correctly, work on a cool surface, prevent the detergent from drying and test before widespread use.

Can it be used on aluminum?
The manufacturer identifies aluminum as a compatible surface when the product is properly diluted. Because aluminum finishes and oxidation levels vary, always conduct a test before cleaning the entire surface.

Does it work with hard water?
Yes. The product is specifically formulated to work well under hard-water conditions.

Is it safe for every painted, coated or delicate surface?
No chemical should be assumed safe for every coating or surface condition. Verify the surface manufacturer's cleaning instructions and test the diluted cleaner in an inconspicuous location first.

Safety Information

Store the container tightly closed in a cool, well-ventilated location. Protect it from unauthorized access and dispose of unused product, wastewater and empty containers according to applicable regulations.

California Proposition 65 warning: The available manufacturer Safety Data Sheet contains a California Proposition 65 warning regarding exposure to ethylene oxide, which is known to the State of California to cause cancer and birth defects or other reproductive harm.

Manufacturer Documents

• Karcher General Purpose Cleaner Product Information Sheet
• Karcher General Purpose Cleaner Safety Data Sheet