Can this be used on area rugs?

Hello from Karcher - The detergents for cleaning rugs is very different than other detergents since they are designed to be vacuumed, not pressure washed.

If the pressure washer dilutes the concentrate 20 to 1, why can't the concentrate be added to the washer directly?

Hello from Karcher - as with many detergents, they are packaged as ready to use or are concentrated and must be diluted to be ready to use. To keep you from buying 20 gallons of ready-to-use detergent, the concentrated version is simpler to store but must be diluted with 20 parts water. Then you fill the pressure washer soap tank with the ready to use (diluted) detergent. The water from the pressure washer is the carrier of the detergent which makes the application of the detergent simpler than spraying a bottle of soap on the wall or car to be cleaned. Further dilution by the pressure washer is already calculated into the mix of soap and water.

Do you simply pour this into the soap dispenser of your pressure washer or do you need to dilute first?

Hello from Karcher - it is highly concentrated and needs to be diluted with 20 parts water to 1 part concentrated soap. Premix this first then pour the diluted solution into the tank. It is very difficult to premix in the tank and this affects how well the soap is applied. Besides, you can keep a premixed amount available ready to use.

Can this / will this clean asphalt shingles roofs?

Asphalt shingles can be easily damaged by a high pressure stream. If you try it be very careful.

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Karcher Multi-Purpose Cleaning Pressure Power Washer Detergent Soap, 1 Gallon

Product ID: 232302222

Details

Brand
KÄRCHER
Item Form
Liquid
Item Volume
128 Fluid
Item Weight
3.74 kg
Material Feature
Eco-Friendly
Net Quantity
3785.4

⚡Highly concentrated - up to 20 gal detergent

🧼Universal compatibility with gas & electric washers

🇺🇸Proudly made in the USA

Description

🧽 Clean smarter, not harder—unleash pro-level shine with every spray!

VERSATILE CLEANING - Perfect for concrete, patios, decks, cars, boats, fences, and more—your all-in-one outdoor cleaning solution.
ECO FRIENDLY FORMULA - Gentle on the environment while tough on grime, so you can clean responsibly and effectively.
POWERFUL CONCENTRATION - One gallon makes 20 gallons of ready-to-use detergent—maximize your cleaning power and value.
SEAMLESS COMPATIBILITY - Works flawlessly with most consumer gas and electric pressure washers, including all Karcher models.
TIME SAVING EFFICIENCY - Formulated to speed up your cleaning routine without sacrificing thoroughness—get spotless results faster.

Karcher's Multi-Purpose Cleaning Pressure Washer Detergent is a highly concentrated, eco-friendly liquid soap designed for universal compatibility with most gas and electric pressure washers. Made in the USA, this detergent delivers professional-grade cleaning power for a wide range of outdoor surfaces, producing up to 20 gallons of ready-to-use solution from a single gallon concentrate. Ideal for busy professionals seeking efficient, versatile, and effective cleaning with a fresh scent and no residue.

Specifications

ASIN	B01BMB4C86
ASIN	B01BMB4C86
Brand Name	KÄRCHER
Contains Liquid Contents?	Yes
Country of Origin	USA
Country of Origin	USA
Customer Reviews	4.4 4.4 out of 5 stars (5,200)
Global Trade Identification Number	00036339581446
Is Discontinued By Manufacturer	No
Item Dimensions LxWxH	18.4 x 27.9 x 10.2 Centimeters
Item Form	Liquid
Item Volume	128 Fluid Ounces
Item Weight	3.74 kg
Item Weight	3 kg 740 g
Item model number	9.558-144.0
Manufacturer	Karcher
Manufacturer	Karcher
Material Features	Eco-Friendly
Model Number	9.558-144.0
Net Quantity	3785.4 Milliliters
Number of Items	1
Part Number	9.558-144.0
Product Dimensions	18.42 x 27.94 x 10.16 cm; 3.74 kg
Scent	Fresh
Size	3.79 l (Pack of 1)
Special Features	Concentrated
Surface Recommendation	Stone
UPC	036339581446
Unit Count	3785.4 Milliliters

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