Best for Dirty water sensor
Roborock Q Revo Pro Robot Vacuum and Mop
5.0 feature score
Highest scored product for this feature based on supporting review evidence.
Best Roborock Vacuums for Dirty water sensor
Dirty water sensor Decision Dashboard
Safest pick
Roborock Saros Z70 Robot Vacuum and Mop
5.0 feature score
Balances feature score, supporting reviews, and overall product strength.
Most evidence
Roborock Qrevo Slim Robot Vacuum and Mop
4 supporting reviews
Has the broadest review evidence for this feature.
Best overall product
Roborock Qrevo Curv Vacuum and Mop
4.5 overall score
Strongest overall product among items with scored evidence for this feature.
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Dirty-water detection was praised as impressive because it triggered extra cleaning behavior after dirty mop washing.
Pros: Build quality and durability, Dirty water sensor
Cons: Edge‑Following Accuracy (Robot), Emptying and Mess Control
Dirty-water sensing is praised in the one review that discussed it, especially for triggering remopping after dirtier mop-water readings.
Pros: Noise level, Maneuverability and Handling
Cons: Clogging and debris prevention, Bin and Bag
The dirty-water sensing and remopping features were praised as useful when mop pads came back especially dirty.
Pros: Surface safety with attachments, Area Rug Handling
Cons: Accessories and Tools, Clogging and debris prevention
The dirty-water sensing remop behavior is praised because it automatically sends the robot back over dirtier areas.
Pros: Mopping performance, Controls and UI
Cons: Area Rug Handling, Accessories and Tools
The dirty-water sensor was valued as part of the dock’s automatic rewash logic.
Pros: Tool-change simplicity, Battery and Charging
Cons: Cord management, Support and Reliability
Dirty-water detection was mixed: several tests triggered remopping successfully, while one dried-stain test failed to send the robot back automatically.
Pros: Clogging and debris prevention, Floorhead design
Cons: Adaptive chassis lift, Solution / Liquid system
Dirty-water detection was appreciated when it triggered or could trigger remopping, though one test did not activate it.
Pros: Hair Pickup — Hard Floors, Emptying and Mess Control
Cons: Filtration / Dust Containment, Bin and Bag
Dirty-water sensing and remopping were viewed as useful, with the Roborock’s one-pass remop behavior considered sufficient.
Pros: Overall cleaning convenience, Runtime
Cons: Solution / Liquid system, Crevice / Groove Pickup (Hard Floors)
The dirty-water sensor was viewed as a useful dock feature because it could detect dirty pad water and trigger additional cleaning.
Pros: Fresh Liquid Pickup Speed, Hard Floor — Large Debris Intake
Cons: Hair-removal channel issues, Accessories and Tools
Dirty-water sensing and remopping received positive but limited evidence when reviewers saw the robot return for additional cleaning.
Pros: Maneuverability and Handling, Versatility
Cons: Under-Furniture Pickup, Low-profile design
Dirty-water sensing and remopping are helpful when they trigger, but one review found automatic remopping failed on test stains.
Pros: Assembly and Setup, Clogging and debris prevention
Cons: Solution / Liquid system, Suitability for heavy-duty use
Dirty-water or dock dirt-detection feedback is moderately positive, helping trigger repeat cleaning, though not always class-leading.
Pros: Sanitizing performance, Odor control
Cons: Fresh Liquid Pickup Speed, Ongoing ownership costs (bags
The dirt-sensing auto response was mixed: some reviewers found it effective, while others found it inaccurate or hard to trigger.
Pros: Pet-Ready Features, Software-update support / feature longevity
Cons: Upholstery / Above-Floor Pickup, Area Rug Handling
The absence of dirty-pad sensing was treated as a limitation because the robot cannot detect dirty pads and return on demand.
Pros: Versatility, Floor shine after cleaning
Cons: Odor control, Stuck resistance