Product Overview
Karcher RM110 is a specialized additive formulated to provide limescale and corrosion protection for hot water pressure washers. It is particularly effective for use in new HDS devices equipped with system care adaptation. The advanced formula helps prevent limescale deposits within the heating coil system and offers integrated corrosion protection for all water-carrying components.

Image of the Karcher RM110 Pressure Washer Additive container, typically yellow with Karcher branding.
Safety Instructions
Always prioritize safety when handling chemical products. Follow these guidelines:
- Always read the product label and safety data sheet before use.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection.
- Keep out of reach of children and pets.
- Store in a cool, dry place, away from direct sunlight and extreme temperatures.
- Do not mix with other cleaning agents or chemicals unless specified by Karcher.
- In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical advice if irritation persists.
- Dispose of contents/container in accordance with local regulations.
Product Features
The Karcher RM110 additive offers several key benefits for your pressure washer:
- Limescale Protection: Prevents limescale deposits in the heating coil system, effective up to 150 °C.
- Integrated Corrosion Protection: New formula offers enhanced protection for all water-carrying parts of the pressure washer.
- Optimized for HDS Devices: Specifically designed for use in new HDS pressure washers with system care adaptation.
Compatible Karcher HDS Devices
The Karcher RM110 additive is compatible with a wide range of Karcher HDS hot water pressure washers. Please refer to your pressure washer's manual for specific system care requirements. Compatible models include:
- HDS 10/20-4 M, HDS 10/20-4 MX, HDS 1000 Be, HDS 1000 De, HDS 12/14-4 ST, HDS 12/14-4 ST Gas, HDS 12/14-4 ST Gas LPG, HDS 12/18-4 S, HDS 12/18 -4 SX, HDS 13/20 De Tr1, HDS 13/20-4 S, HDS 13/20-4 SX, HDS 13/35 De Tr1, HDS 17/20 De Tr1, HDS 2000 Super, HDS 5/11 U, HDS 5/11 UX, HDS 5/11 2 C, HDS 5/13 U, HDS 5/13 UX, HDS 6/14 C, HDS 6/14 CX, HDS 6/14-4 C, HDS 6/14-4 CX, HDS 7/12-4 M, HDS 7/12-4 MX, HDS 7/16 C, HDS 7/16 CX, HDS 8/18-4 C, HDS 8/18-4 CX, HDS 801 B, HDS 9/14-4 ST, HDS 9/18-4 M, HDS 9/18-4 MX, HDS 9/50 De Tr1, HDS-E 8/16 -4 M 36 kW, HDS-E 8/16-4 M 12 KW, HDS-E 8/16-4 M 24KW, HWE 860.
- Compatible devices from the old range: HDS 10/20-4 M, HDS 10/20-4 MX, HDS 12/18-4 S, HDS 12/18-4 SX, HDS 13/20-4 S, HDS 13/20-4 SX SX, HDS 5/11 U, HDS 5/11 UX, HDS 5/12 C, HDS 5/13 U, HDS 5/13 UX, HDS 5/15 U, HDS 5/15 UX, HDS 6/14 C, HDS 6/14 CX, HDS 6/14-4 C, HDS 6/14-4 CX, HDS 695HDS -4 M Eco, HDS 695-4 MX Eco, HDS 7/12-4 M, HDS 7/12-4 MX, HDS 7/16 C, HDS 7/16 CX, HDS 8/17 C, HDS 8/17 CX, HDS 8/18-4 C, HDS 8/18-4 CX, HDS 8/18-4 CX, HDS 8/18-4 CX, HDS 8/18-18-4 M, HDS 8/18-4 MX, HDS 801-4 E 12 KW, HDS 801-4 E 24 KW, HDS 9/18-4 M, HDS 9/18-4 MX, HDS-E 8/16-4M 12 KW, HDS-E 8/16-4M 24 KW, HDS-E 8/16-4M M M 36 KW.
Setup and Installation
The Karcher RM110 additive is designed for easy integration into compatible Karcher hot water pressure washers. Follow these general steps for proper setup:
- Locate the System Care Tank: Identify the dedicated system care tank or inlet on your Karcher HDS pressure washer. Refer to your pressure washer's operating manual for the exact location.
- Fill the Tank: Carefully pour the Karcher RM110 additive into the system care tank. Ensure not to overfill.
- Secure the Cap: Close the system care tank cap securely after filling.
- System Activation: The pressure washer's system care adaptation will automatically draw the additive as needed during operation to provide continuous protection.
Always consult your specific pressure washer's instruction manual for detailed guidance on using system care additives.
Operating Instructions
Once the RM110 additive is loaded into the system care tank, its operation is largely automatic. The pressure washer's internal system will manage the dosage.
- Regular Operation: Use your hot water pressure washer as normal. The system care unit will dispense the RM110 additive to protect against limescale and corrosion during heating and operation.
- Monitoring Levels: Periodically check the level of the RM110 additive in the system care tank and refill as necessary to ensure continuous protection.
- Optimal Performance: For best results, ensure the system care tank is never empty when operating the pressure washer, especially when using hot water.
Maintenance and Storage
Proper maintenance and storage of the RM110 additive ensure its effectiveness and safety.
- Storage: Store the additive in its original container, tightly sealed, in a cool, dry, and well-ventilated area. Protect from frost and direct sunlight.
- Container Integrity: Do not transfer the additive to unmarked containers. Ensure the original container is not damaged.
- Disposal: Dispose of empty containers and any unused product according to local environmental regulations. Do not pour into drains or waterways.
Troubleshooting
If you encounter issues related to limescale or corrosion despite using Karcher RM110, consider the following:
- Additive Level: Verify that the system care tank contains sufficient RM110 additive. An empty tank will not provide protection.
- Correct Dosage: Ensure your pressure washer's system care setting is correctly configured, if applicable, to dispense the additive.
- Water Hardness: In areas with extremely hard water, severe limescale buildup might require additional descaling procedures or more frequent use of the additive. Consult a Karcher service center.
- System Malfunction: If limescale or corrosion persists, there might be a malfunction in the pressure washer's system care unit. Contact Karcher customer support or an authorized service technician.
Specifications
| Attribute | Value |
|---|---|
| Brand | Karcher |
| Model Number | RM110 |
| Item Weight | 6 Kilograms (approx. 13.2 pounds) |
| Tank Volume | 1250 Milliliters |
| Specification Met | CE, CSA |
Warranty and Support
For information regarding warranty coverage for your Karcher RM110 Pressure Washer Additive or for technical support, please refer to the official Karcher website or contact Karcher customer service directly. Keep your purchase receipt as proof of purchase.
You can find more information and contact details on the official Karcher website.





