Exploring Window Cleaning Robot: Key Grades, Specifications, and Performance Metrics

Types of Window Cleaning Robots

A window cleaning robot is an innovative, automated solution designed to simplify and enhance the process of cleaning glass surfaces. These smart devices reduce the need for manual labor, improve safety, and deliver consistent, streak-free results. With various models tailored to different environments and glass types, window cleaning robots are transforming how homes, offices, and commercial buildings maintain their appearance.

Vertical Surface Cleaning Robot

Engineered with powerful suction or advanced adhesive technology, these robots securely attach to glass and move vertically across tall or flat windows. Powered by rechargeable batteries or a direct power cord, they are equipped with fall-detection sensors for maximum safety.

Advantages

• Excellent for high-rise buildings and large glass facades
• Enhanced safety—eliminates the need for risky manual cleaning
• Energy-efficient and cost-effective over time
• Automated path planning for full coverage

Limitations

• Requires a stable power source or frequent recharging
• May struggle on uneven or textured glass
• Higher initial investment

Best for: Skyscrapers, office towers, and large vertical glass panels

Magnetic Window Cleaning Robot

Utilizing a dual-magnet system—one inside the robot and one manually guided from the opposite side—these robots glide smoothly across double-glazed windows. Ideal for cleaning the space between two panes, they are lightweight, battery-powered, and easy to control.

Advantages

• Precise control with manual guidance
• Perfect for double-pane windows and aquariums
• Compact and portable design
• Safe and simple to operate indoors

Limitations

• Only effective on glass thin enough for magnetic coupling
• Requires user presence during operation
• Not suitable for very thick or insulated glass

Best for: Double-glazed windows, patio doors, and aquarium maintenance

Scrubber-Style Cleaning Robot

These robots combine scrubbing and drying functions in one automated cycle. Equipped with rotating or oscillating microfiber cloths, they clean dirt and smudges, then use warm air blowers to dry the surface—eliminating water spots and streaks.

Advantages

• Leaves a spotless, streak-free finish
• All-in-one wash and dry function
• Ideal for indoor use and sensitive environments
• Great for car windows and home interiors

Limitations

• Limited to smaller or accessible windows
• Battery life may restrict cleaning duration
• Air drying may take longer in humid conditions

Best for: Residential homes, vehicles, and interior glass surfaces

Spray & Brush Cleaning Robot

These models feature built-in water and cleaning solution reservoirs. They spray liquid onto the glass and use rotating brushes to scrub away tough grime like mud, pollen, or bird droppings. After scrubbing, excess water is wiped or spun off for a clear, shiny finish.

Advantages

• Powerful cleaning for heavily soiled exterior windows
• Effective in all weather conditions
• Ideal for post-storm cleanup and outdoor maintenance
• Keeps storefronts and homes looking pristine

Limitations

• Requires water refill and maintenance
• May leave residue if not properly rinsed
• Not suitable for delicate or antique glass

Best for: Exterior house windows, commercial storefronts, and heavily soiled glass

Type	Cleaning Power	Best For	Drying Capability	Ideal Environment
Vertical Surface Robot	High	Tall buildings, large glass	Yes (air/wipe)	Exterior, high-rise
Magnetic Robot	Medium	Double-pane windows	No (manual wipe)	Interior, aquariums
Scrubber Robot	Medium-High	Streak-free finish	Yes (warm air)	Indoor, vehicles
Spray & Brush Robot	Very High	Tough outdoor grime	Yes (brush/wipe)	Exterior, commercial

Expert Tip: For optimal performance, always clean the robot’s brushes and sensors after each use, and use distilled water in spray models to prevent mineral buildup and streaking.

Functions & Features of Window Cleaning Robots

As an innovative cleaning solution, window cleaning robots are revolutionizing how homes and commercial buildings maintain spotless glass surfaces. Combining robotics, smart sensors, and intelligent navigation, these devices deliver efficient, safe, and hands-free window cleaning. Designed for both indoor and outdoor use, they minimize human effort while maximizing cleaning consistency and coverage.

Equipped with cutting-edge technology, modern window cleaning robots offer a wide range of features that enhance usability, safety, and integration with contemporary smart living environments. Below is a comprehensive breakdown of their core functions and standout features.

Core Functions and Intelligent Features

Automated Cleaning with Smart Navigation

At the heart of every window cleaning robot is its autonomous operation. Using advanced infrared, ultrasonic, or edge-detection sensors, the robot maps the window’s perimeter and navigates in systematic patterns—such as Z-patterns or spiral routes—to ensure complete coverage without missing spots.

Equipped with intelligent algorithms, these robots can detect obstacles, adjust pressure on curved or uneven glass, and reposition themselves if displaced. This automation drastically reduces manual labor, especially for high-rise buildings or hard-to-reach windows.

Remote Control Operation

Most models come with a dedicated remote control, allowing users to manually direct the robot’s movement, initiate cleaning cycles, pause operations, or reposition the device if needed. This is particularly useful during initial setup or when cleaning irregularly shaped windows.

Remote controls often feature intuitive buttons and real-time feedback, making it easy for users of all ages to operate the robot confidently and safely from the ground or indoors.

Scheduling & Timer Functions

Many premium window cleaning robots include programmable timer settings, enabling users to schedule cleanings at specific times—such as early morning or during low-wind hours for outdoor use.

This automation ensures consistent maintenance without requiring daily input, ideal for busy households or commercial facilities aiming to maintain a pristine appearance with minimal effort.

Multi-Surface Compatibility

Beyond standard windows, many robots are designed to clean a variety of smooth, non-porous surfaces. This includes glass doors, mirrors, shower enclosures, ceramic tiles, and even solar panels.

Their adaptable suction systems and cleaning pads allow seamless transitions between vertical and horizontal surfaces, making them a versatile addition to any cleaning toolkit.

Advanced Safety Mechanisms

Safety is paramount, especially when operating at heights. Window cleaning robots are equipped with multiple fail-safes: anti-drop sensors detect edges and prevent falls, while powerful suction systems (often exceeding 2,000 Pa) keep the robot securely attached to glass.

In addition, some models feature a backup battery that automatically activates during a power interruption, allowing the robot to complete its task or return to a safe position. A safety tether is also commonly included as a physical backup to catch the robot in rare malfunction scenarios.

Voice Control & App Integration

Top-tier models support integration with voice assistants like Amazon Alexa and Google Assistant, enabling users to start, stop, or check the status of their robot using simple voice commands.

When paired with a dedicated mobile app, users can monitor cleaning progress, receive maintenance alerts, update firmware, and control the robot remotely—adding a new level of convenience to smart home ecosystems.

Easy Maintenance & Replaceable Components

Designed for long-term use, these robots feature user-friendly maintenance. Cleaning pads (microfiber or silicone) are easily detachable and washable, while water tanks (in wet-cleaning models) can be refilled or removed for cleaning.

Many manufacturers offer replacement kits for pads, brushes, and filters, ensuring optimal performance over time. Regular maintenance extends the robot’s lifespan and maintains cleaning efficiency.

Smart Home & IoT Integration

For tech-savvy users, IoT-enabled window cleaning robots can sync with smart home platforms like Apple HomeKit, Samsung SmartThings, or IFTTT. This allows for automation rules—such as triggering a cleaning cycle after it rains or when indoor air quality drops.

This level of integration transforms the robot from a standalone device into a responsive component of a fully automated living or working environment.

Feature	Benefit	Best For
Automated Navigation	Full coverage with minimal user input	Large windows, high-rise buildings
Remote Control	Manual override and precise control	Irregular shapes, emergency stops
Timer/Scheduling	Consistent cleaning without daily effort	Commercial spaces, busy households
Voice & App Control	Hands-free operation and remote monitoring	Smart homes, tech-integrated users
Anti-Drop Sensors + Suction	Enhanced safety at heights	Outdoor use, upper-floor windows
Multi-Surface Use	Greater versatility and value	Bathrooms, kitchens, solar panels

Why Choose a Window Cleaning Robot?

Time-Saving: Complete window cleaning in minutes without ladders or squeegees—ideal for multi-story homes or large glass facades.

Safety-First Design: Eliminates the need for risky climbs, reducing the chance of accidents during high-altitude cleaning.

Eco-Friendly: Uses minimal water and cleaning solution compared to traditional methods, contributing to sustainable cleaning practices.

Consistent Results: Delivers uniform cleaning without streaks or missed spots, thanks to precise robotic movements.

Low Maintenance: Simple cleaning and part replacement make long-term ownership hassle-free.

Smart Living Ready: Seamlessly integrates into modern smart home environments for ultimate convenience.

Important: Always follow manufacturer guidelines for safe operation, especially when using robots outdoors or on tall buildings. Use the safety tether at all times, ensure sensors are clean and unobstructed, and avoid operation during high winds or rain unless the model is specifically rated for such conditions. Proper setup and maintenance are key to maximizing performance and safety.

Applications of Robot Window Cleaners

Robot window cleaners are transforming the cleaning industry by offering safe, efficient, and cost-effective solutions across residential, commercial, and industrial environments. These intelligent devices reduce reliance on manual labor, minimize safety risks, and deliver consistent, high-quality results. Below are the most common and impactful applications of window cleaning robots in real-world scenarios.

High-Rise Building Cleaning

One of the most significant applications of robot window cleaners is in skyscrapers and multi-story buildings where access is challenging and dangerous for human workers. These robots are engineered to climb vertically, adhere securely to glass surfaces, and navigate complex facades with precision.

• Eliminates the need for risky scaffolding, swing stages, or suspended platforms
• Operates efficiently in high-wind conditions with built-in safety sensors
• Programmable routes allow for full coverage of large glass exteriors
• Reduces downtime and labor costs associated with traditional high-rise cleaning

Safety advantage: Significantly lowers the risk of falls and workplace injuries in high-altitude operations.

Residential Window Cleaning

Homeowners with multi-level homes, large floor-to-ceiling windows, or hard-to-reach skylights benefit greatly from automated cleaning solutions. These robots offer a convenient, time-saving alternative to ladders and manual scrubbing.

• Ideal for two-story homes, atriums, and modern architectural designs with expansive glazing
• Remote-controlled or app-based operation allows for easy supervision
• Self-drying and anti-streak technology ensures spotless results
• Perfect for elderly or mobility-limited individuals seeking maintenance independence

Homeowner benefit: Delivers professional-grade cleaning without the need for external services or physical effort.

Window Tinting and Auto Detailing

Robot cleaners are increasingly used in automotive service centers, particularly for vehicles with tinted windows. Their gentle yet effective cleaning mechanisms preserve tint films while removing smudges, dust, and pollutants.

• Prevents scratching or peeling of high-quality window tints with soft microfiber pads
• Integrated water reservoirs and eco-friendly cleaning solutions ensure streak-free finishes
• Used in car washes and detailing shops to enhance service speed and consistency
• Reduces labor time between vehicle treatments, improving shop throughput

Industry use: A reliable tool for maintaining the clarity and longevity of professionally applied window tints.

Building Facade Maintenance

Modern architecture often features glass-intensive exteriors that require regular maintenance to maintain aesthetic appeal and structural integrity. Robot cleaners are ideal for preserving the appearance of glass facades, curtain walls, and reflective surfaces.

• Equipped with adaptive navigation to handle curved or angled glass panels
• Removes environmental pollutants, bird droppings, and urban grime effectively
• Can be scheduled for routine maintenance, reducing long-term buildup
• Preserves property value by keeping exteriors looking pristine

Architectural benefit: Ensures consistent upkeep of visually prominent building elements with minimal disruption.

Solar Panel Cleaning

Dust, pollen, and debris accumulation on solar panels can reduce energy efficiency by up to 30%. Specialized window-cleaning robots are designed to clean photovoltaic surfaces safely and efficiently, maximizing power output.

• Non-abrasive cleaning prevents damage to sensitive solar coatings
• Autonomous operation allows for scheduled cleaning during low-light hours
• Water-efficient systems use minimal liquid, ideal for arid regions
• Cost-effective alternative to manual cleaning for large solar farms or rooftop arrays

Energy impact: Regular robotic cleaning can boost solar panel efficiency and return on investment over time.

Exhibition Centers & Museums

Institutions housing valuable artifacts behind glass enclosures use cleaning robots to maintain visibility and preserve delicate items. These robots clean display cases without requiring removal of protective barriers.

• Prevents accidental contact with exhibits during cleaning
• Maintains clear viewing angles for visitors without interrupting exhibits
• Operates quietly, minimizing disruption in public spaces
• Compatible with anti-reflective and laminated glass used in display cases

Preservation benefit: Enables safe, non-invasive maintenance of sensitive environments.

Hard-to-Reach and Complex Structures

Robots excel in environments where access is limited or structurally complex, such as bridges, domes, pergolas, and glass canopies. Their compact design and strong adhesion allow them to operate in unconventional spaces.

• Capable of cleaning under overhangs, sloped roofs, and curved glass
• Used in airports, train stations, and stadiums with large glass installations
• Reduces the need for custom rigging or specialized access equipment
• Improves cleaning frequency and coverage in neglected areas

Engineering advantage: Extends cleaning capabilities beyond the limits of human reach and traditional tools.

Commercial & Public Facilities

Shopping malls, hospitals, office complexes, and educational institutions benefit from the consistent, reliable performance of robotic window cleaners. These facilities often have large glass entrances, atriums, and curtain walls requiring frequent upkeep.

• Operates during off-hours to avoid disrupting daily activities
• Integrates with facility management systems for remote monitoring
• Reduces long-term maintenance costs and service contracts
• Promotes sustainability through reduced water and chemical usage

Operational efficiency: Supports facility managers in maintaining high standards of cleanliness with minimal oversight.

Professional Insight: When recommending robot window cleaners, consider the scale, frequency, and accessibility of the cleaning task. For commercial clients, emphasize safety compliance and ROI. For residential users, highlight convenience, ease of use, and time savings. Many models now offer smart features like obstacle detection, weather resistance, and mobile app control—key selling points for tech-savvy customers.

Application	Key Benefit	Best-Suited Robot Type	Frequency of Use
High-Rise Buildings	Worker safety & efficiency	Vertical climbing robots with safety tethers	Monthly to quarterly
Residential Homes	Convenience & independence	Handheld or small autonomous units	Bi-weekly to monthly
Solar Panels	Energy optimization	Water-efficient, non-abrasive cleaners	Monthly (dry climates), quarterly (wet)
Museums & Galleries	Artifact protection	Precision micro-cleaning robots	Weekly to monthly
Commercial Facilities	Operational continuity	Programmable, quiet-operation models	Weekly
Hard-to-Reach Areas	Accessibility & coverage	Compact, multi-directional robots	As needed or scheduled

Additional Considerations

• Weather Resistance: Choose robots with IP67 or higher ratings for outdoor use in rain, wind, or dust
• Battery Life: Opt for models with extended runtime or swappable batteries for large-scale jobs
• Adhesion Technology: Magnetic, vacuum, or electrostatic systems vary by surface type—ensure compatibility
• Remote Monitoring: Advanced models offer real-time tracking and alerts via smartphone apps
• Maintenance Needs: Regular cleaning of brushes, filters, and sensors ensures long-term performance

How to Choose the Best Window Cleaning Robot

Selecting the right window cleaning robot can transform a tedious, time-consuming chore into an effortless, automated task. Whether you're maintaining a modern home with floor-to-ceiling glass or managing a commercial building with multiple high-rise windows, choosing a robot that matches your specific needs is crucial for efficiency, safety, and long-term satisfaction. This comprehensive guide outlines the key factors to consider when purchasing a window cleaning robot, helping you make an informed decision based on performance, safety, and compatibility.

Safety Warning: Always supervise the robot during its initial cleaning cycles, especially on high-rise windows. Never rely solely on suction or climbing mechanisms—use safety tethers whenever available to prevent accidental falls that could damage property or cause injury.

Key Factors to Consider When Buying a Window Cleaning Robot

1. Window Type and Surface Compatibility

   The design and material of your windows play a significant role in determining which robot will work best. Most window cleaning robots are engineered for flat, smooth glass surfaces commonly found in residential and commercial buildings. However, if your property features curved, beveled, or textured glass, you’ll need a model specifically designed to handle such surfaces.

   • Look for robots with adaptive suction or flexible cleaning pads that conform to slight curves
   • Ensure the robot can navigate window frames, mullions, and corners without getting stuck
   • Check manufacturer specifications for minimum and maximum glass thickness compatibility
   • For tinted or coated windows, confirm the robot won’t scratch or damage the surface
2. Safety Features for Peace of Mind

   Safety is paramount, especially when cleaning elevated or hard-to-reach windows. A malfunctioning robot could fall and cause damage or injury. That’s why advanced safety mechanisms are non-negotiable for high-rise or exterior applications.

   • Safety Tether: A physical rope or cable that anchors the robot to a secure point, preventing falls if suction fails
   • Anti-Fall Sensors: Built-in sensors detect edge proximity and automatically reverse direction
   • Power Backup: Some models include emergency battery reserves to maintain suction during power fluctuations
   • Obstacle Detection: Smart robots use infrared or ultrasonic sensors to avoid collisions and re-route safely
3. Robot Size and Maneuverability

   The physical dimensions of the robot directly impact its cleaning efficiency and adaptability. Larger robots typically cover more area per cycle, making them ideal for expansive windows. However, smaller units offer better access to narrow panes, corners, and complex window layouts.

   • Larger robots (8–12 inches) are efficient for standard double-hung or sliding windows
   • Compact models (5–7 inches) excel in tight spaces like bathroom windows or skylights
   • Check the turning radius and navigation pattern—Z-patterns or spiral paths improve coverage
   • Robots with modular or foldable designs can adapt to irregular shapes
4. Cleaning Speed and Efficiency

   Cleaning speed determines how quickly the robot completes a job, which is especially important for commercial buildings or homes with numerous windows. Faster robots reduce downtime and increase productivity.

   • Average cleaning speed ranges from 1 to 4 square feet per minute
   • High-performance models use dual motors and oscillating pads for faster scrubbing
   • Look for adjustable speed settings to balance thoroughness and time
   • Robots with intelligent path planning minimize redundant movements
5. Battery Life and Charging Performance

   Long battery life ensures uninterrupted cleaning, especially for large or multi-pane windows. A robot that runs out of power mid-cycle may leave streaks or require manual intervention.

   • Standard battery life ranges from 20 to 40 minutes per charge
   • Higher-end models offer 60+ minutes, sufficient for multiple windows
   • Fast-charging capabilities (1–2 hours) reduce downtime between uses
   • Some robots return automatically to a docking station when low on power
   • Consider models with removable or replaceable batteries for extended operation
6. Wall Climbing and Suction Power

   Strong suction and wall-climbing ability are essential for vertical and overhead cleaning. The robot must maintain a secure grip on glass, even when wet or after applying cleaning solution.

   • Look for suction power rated at 2,000 Pa or higher for reliable adhesion
   • Robots with dual or quad suction fans offer enhanced stability
   • Water-resistant seals prevent moisture from compromising internal components
   • In humid climates or rainy environments, choose models with anti-slip technology
7. Customer Reviews and Brand Reputation

   Real-world user feedback provides invaluable insights into a robot’s reliability, durability, and actual performance. Reading reviews helps identify common issues and confirms marketing claims.

   • Check platforms like Amazon, Best Buy, or specialized home automation forums
   • Look for consistent praise (or complaints) about suction strength, noise level, and ease of use
   • Pay attention to long-term durability—some robots degrade after a few months
   • Favor brands with responsive customer support and warranty coverage (1–2 years recommended)
   • Verify if firmware updates are available for improved navigation or features

Selection Factor	Ideal Specification	Common Trade-offs	Top-Rated Models
Window Type	Flat, curved, and beveled glass compatible	Specialized models may cost more	Ecovacs Winbot X, Wobot S500
Safety Features	Safety tether + anti-fall sensors	Added weight may reduce speed	Ilife Winbot 950, Narwal Freo X Ultra
Robot Size	7–10 inch footprint with edge detection	Larger size limits access to tight corners	Roborock W10, Dreame Bot L10 Pro
Cleaning Speed	2.5+ sq ft/min with smart pathing	Faster speed may reduce scrubbing depth	Narwal Freo X, Ecovacs Winbot W1
Battery Life	40+ minutes with auto-docking	Longer life increases charging time	Wobot S500, Ilife Winbot 950

Expert Tip: Before finalizing your purchase, check if the robot includes a remote control or smartphone app. App-enabled models allow you to schedule cleanings, monitor progress, and receive maintenance alerts—adding convenience and smart home integration.

Additional Buying Tips

• Test the robot on a small window first to evaluate suction, noise, and cleaning quality
• Ensure the included cleaning solution is non-abrasive and safe for your glass type
• Look for models with washable microfiber pads to reduce ongoing costs
• Consider a robot with a transparent body to monitor water and debris levels
• For commercial use, invest in multi-robot management systems or fleet controls

Choosing the right window cleaning robot involves balancing performance, safety, and practicality. By carefully evaluating your window types, environmental conditions, and usage needs, you can select a robot that delivers sparkling results with minimal effort. Remember, the best robot isn’t always the most expensive—it’s the one that fits your unique requirements and provides reliable, long-term value.

Frequently Asked Questions About Window Cleaning Robots

Q1: Are window cleaning robots worth it?

Window cleaning robots can be a valuable investment, especially for homes or buildings with large, high, or hard-to-reach windows. These automated devices help reduce the risks associated with manual window cleaning at heights and can save time on routine maintenance.

• Pros: Ideal for multi-story buildings, consistent cleaning patterns, and reduced physical labor.
• Limitations: Performance depends on proper setup—windows must be free of debris, and the robot requires sufficient water and cleaning solution to function effectively.
• Surface Compatibility: May struggle on uneven, textured, or heavily soiled glass surfaces. Some models still require human supervision or assistance during operation.

Overall, while not a complete replacement for professional cleaning in all cases, window cleaning robots offer convenience and safety benefits that many users find worthwhile.

Q2: How much should one spend on a window cleaning robot?

The cost of window cleaning robots varies significantly based on features, brand, and intended use, ranging from approximately $100 to over $5,000.

Price Range	Features	Best For
$100–$300	Basic suction, manual controls, limited battery life	Small windows, occasional indoor use
$300–$800	Improved suction, edge detection, app control, auto-cleaning modes	Residential homes with standard-sized windows
$800–$2,500+	AI navigation, remote monitoring, obstacle avoidance, strong adhesion for vertical surfaces	Large windows, commercial buildings, high-rise exteriors
$2,500–$5,000	Industrial-grade durability, fleet management, integration with building systems	Skyscrapers, corporate campuses, automated facility maintenance

Higher-priced models typically offer greater reliability, smarter navigation, and enhanced safety features, making them suitable for demanding environments. Consider your specific needs—such as window size, frequency of cleaning, and accessibility—when deciding on a budget.

Q3: How long do window cleaning robots last?

The lifespan of a window cleaning robot typically ranges from 2 to 5 years, depending on several key factors:

• Build Quality: Robots made with durable materials and high-quality motors tend to last longer and withstand frequent use.
• Maintenance: Regular cleaning of brushes, sensors, and water tanks, along with proper storage, can extend the device’s operational life.
• Usage Frequency: Daily use in commercial settings may shorten lifespan compared to weekly or monthly residential use.
• Environmental Conditions: Exposure to extreme temperatures, UV radiation, or salty air (e.g., near oceans) can degrade components over time.

With proper care and timely replacement of wear parts like seals and batteries, some premium models can exceed the 5-year mark, offering strong long-term value.

Q4: How frequently should one replace a window cleaning robot's cleaning pads?

Cleaning pads, water tanks, squeegees, and other accessories should be replaced when signs of wear become apparent, such as fraying, reduced absorbency, or streaking on glass.

• Typical Replacement Interval: Cleaning pads usually last between 2 to 6 months under regular use, depending on window size and dirt levels.
• Indicators for Replacement: Visible wear, decreased cleaning performance, or residue left on windows after cleaning.
• Other Components: Water tanks may crack over time, and seals can degrade—inspect these regularly to prevent leaks.

Always refer to the manufacturer’s user manual for model-specific maintenance schedules and recommended replacement parts. Keeping spare pads on hand ensures uninterrupted cleaning operations and maintains optimal performance.

Q5: Do window cleaning robots use water?

Yes, most window cleaning robots use a combination of water and a specialized cleaning solution to effectively clean glass surfaces.

• Cleaning Process: The robot sprays a fine mist of water and cleaning solution onto the window before wiping it with a damp microfiber cleaning pad, which loosens and removes dust, fingerprints, and grime.
• Purpose of Water: Moisture prevents dirt from scratching the glass and allows the cleaning pad to glide smoothly, reducing friction and improving results.
• Water Management: Many models have built-in reservoirs that allow users to control the spray amount, minimizing waste and preventing drips. Some advanced units even recycle water or detect humidity levels for efficient usage.
• Drying Mechanism: After mopping, the robot often uses a dry edge or secondary pad to leave the window streak-free.

Using distilled or filtered water is recommended to prevent mineral buildup in the spray system, especially in areas with hard water. Always follow the manufacturer’s guidelines for liquid ratios to avoid damaging the robot or leaving residue.