Chasing Hydro 3S Cordless Robotic Pool Cleaner

The Chasing Hydro 3S is a mid-range cordless robotic pool cleaner that extends the Hydro 3's capabilities with intelligent S-shaped path navigation, app control, four cleaning modes, and a 300-minute extended runtime in Eco mode. It targets residential pools up to 1,614 sq. ft., a roughly 50% larger envelope than the base Hydro 3. The Hydro 3S retains the cordless drop-and-go workflow while adding scheduling, mode customization, and real-time battery monitoring through the Poolmate Bot mobile app.

The Hydro 3S uses dual centrifugal pumps that move 100 gallons of water per minute, with the HydroCurve algorithm planning S-shaped cleaning paths for up to 95% pool coverage. Lateral water jets clean an additional 25% more edge and corner area than the Hydro 3, addressing waterline buildup that other cordless cleaners miss. The 4.1L dual-zone filter basket with 180 μm mesh remains the same as the Hydro 3, but the 160W motor and 11,000 mAh battery deliver longer cycles. The unit weighs 7.5 kg (16.5 lbs) and includes a 200-meter water pressure resistance rating.

This is the right cleaner for owners with mid-sized residential pools (1,000-1,614 sq. ft.) who want app control, scheduling, and longer cleaning sessions without stepping up to the corded Hydro 4 SE or the higher-priced Hydro 4. Compared to the Hydro 3, the 3S adds intelligent navigation and remote control. Compared to the Hydro 4, the 3S costs less but lacks the 4's hybrid cord option and 5070 GPH suction tier. The 3S sits at the value-performance intersection of the Chasing cordless lineup.

• Dimensions: Comparable to Hydro 3 (398 x 405 x 253 mm class)
• Weight: 7.5 kg (16.5 lbs) dry
• Motor Power: 160W
• Water Pressure Rating: 200 m
• Suction System: Dual centrifugal pumps
• Water Flow Rate: 100 gallons per minute
• Battery Capacity: 11,000 mAh
• Runtime (Eco Mode): Up to 300 minutes
• Runtime (Standard Modes): Approximately 200-240 minutes
• Maximum Pool Size: 1,614 sq. ft. (150 m²)
• Cleaning Coverage: Floor, walls, waterline; up to 95% pool coverage
• Filter Basket Capacity: 4.1L dual-zone with double-open cover
• Filter Precision: 180 μm nylon mesh
• Number of Cleaning Modes: 4 (Automatic, Floor, Walls & Waterline, Eco)
• Navigation Algorithm: HydroCurve S-shaped intelligent path
• Connectivity: Wi-Fi and Bluetooth via Poolmate Bot app
• App: Poolmate Bot (iOS and Android)
• Brush Type: Food-grade silicone roller brush
• Compatible Pool Surfaces: Tile, concrete, vinyl, acrylic, fiberglass, glass, PVC
• Pool Types: Inground and above-ground
• Auto-Docking: Yes, returns to pool edge at low battery or cycle end

• HydroCurve S-Shaped Path Navigation: Intelligent algorithm plans optimal cleaning routes for up to 95% pool coverage, reducing missed spots and repeated passes compared to random-path cleaners.
• 300-Minute Eco Mode Runtime: 50% longer cycle time than the Hydro 3 base model; lower-power mode extends battery life for thorough cleaning of larger pools.
• Four Cleaning Modes: Automatic (full cycle), Floor (debris-focused), Walls and Waterline (vertical surfaces), and Eco (energy-efficient extended). Switch via app or main button.
• Poolmate Bot App Control: Wi-Fi and Bluetooth connectivity for remote start, mode switching, real-time battery monitoring, weekly scheduling, runtime customization, and delay-start timers.
• Enhanced Waterline Cleaning: Patented lateral water jets clean 25% more edge area than standard cordless cleaners; removes stubborn buildup along the tile line.
• Dual Centrifugal Pumps: Filter 100 gallons of water per minute for super-strong suction; removes leaves, sand, pebbles, fibers, hair, and floating particles.
• 160W Motor with 200m Water Pressure Resistance: Designed for high-salt and high-chlorine environments; tested for durability in residential and commercial chemical exposure.
• Salt- and Chlorine-Resistant Motors: Lasts up to 3x longer than standard motors per Chasing testing.
• Dual-Stage Filtration: Front filter zone captures leaves and large debris; rear zone performs precision follow-up for sand and fine particles.
• Lightweight 16.5 lb Design: Easy single-person retrieval and storage; portable enough for second-home and seasonal use.
• Auto-Docking at Low Battery: Returns to pool edge automatically when battery is depleted or cycle completes; visible indicator confirms ready-to-retrieve state.
• Food-Grade Silicone Roller Brush: Combines brushing and suction for efficient debris pickup; resists chlorine and salt degradation.
• App Scheduling: Set weekly cleaning schedules, customize runtimes, and stagger start times for solar-charged accessories or off-peak hours.
• Body Indicator Light: Visible battery status display for quick visual confirmation without opening the app.
• Universal Voltage Charger: Operates on 100V to 240V outlets globally.

The Hydro 3S targets owners of mid-sized residential pools between 1,000 and 1,614 sq. ft. who want app-controlled cleaning, mode flexibility, and longer cycles than the base Hydro 3. Inground rectangular, kidney, freeform, and L-shaped pools all benefit from S-shaped path planning, which adapts to non-uniform geometries better than random-path algorithms. Owners with vinyl, fiberglass, or tile pools and standard residential chemistry will find the 3S handles routine maintenance plus periodic deep cleans across all four modes.

For luxury residential pools and salt-chlorinated installations, the 200m water pressure resistance rating and salt-resistant motor design extend service life under harsh chemical conditions. Owners who travel frequently can use the app's scheduling and remote-start features to maintain pool cleanliness during absences. Pool service contractors managing portfolios of mid-sized residential or boutique commercial pools (e.g., small spa or hospitality pools) gain a portable cordless solution with verified runtime margin.

The Hydro 3S is less suited for pools larger than 1,614 sq. ft., where the Hydro 4's 2,150 sq. ft. coverage and faster cycle handling are more appropriate, or pools requiring extreme shallow-area cleaning below 0.5 m. The 3S also does not include surface skimming; pools with heavy floating debris should pair it with a dedicated surface skimmer.

Estimated Setup Time: 30 to 45 minutes for unboxing, initial charge, app pairing, and first cleaning cycle.

1. Step 1 - Charge the Battery: Connect the included universal charger (100V-240V) and charge to full from empty in approximately 4 hours. LED transitions from red to solid green at completion.
2. Step 2 - Install the Poolmate Bot App: Download Poolmate Bot from the Apple App Store or Google Play. Create an account and select "Add Device" to begin pairing.
3. Step 3 - Pair via Bluetooth and Wi-Fi: Power on the Hydro 3S and follow in-app prompts to pair via Bluetooth, then connect to your home Wi-Fi network. Wi-Fi enables remote control beyond Bluetooth range.
4. Step 4 - Verify Pool Conditions: Confirm water chemistry (free chlorine 1-3 PPM, pH 7.2-7.8). Skim large floating debris manually. Confirm pool size is within the 1,614 sq. ft. envelope and depth is 0.5 m to 3 m.
5. Step 5 - Select a Cleaning Mode: Choose Auto, Floor, Walls and Waterline, or Eco from the app or one-touch main button. For first use, Auto mode establishes pool geometry.
6. Step 6 - Deploy the Robot: Lower the Hydro 3S into the deep end by the carry handle. Release once fully submerged. Cleaning begins automatically based on selected mode.
7. Step 7 - Monitor and Retrieve: Track progress and battery level in the app. When the cycle ends or battery reaches low threshold, auto-docking moves the robot to the pool edge. Retrieve, empty the dual-zone basket, rinse, and recharge.