Continuous Power for Stable and Efficient Everyday Cleaning
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- Unlimited Cleaning Power: Cleans medium to large sized pools non-stop — no battery limits, ideal for heavy-duty use.
- The World's 1st Dual Cleaning System: Equipped with our latest twin inlets and a dual-zone filter basket design.
- Dual-Stage Filtration: The front filter zone captures leaves and larger debris, while the rear zone performs a precision follow-up, trapping fine particles like sand and gravel.
- HydroCurve™ S: Intelligent S-shaped cleaning path for up to 95% pool coverage.
- Enhanced Waterline Cleaning: Patented lateral jets clean 25% more edge area and remove stubborn buildup.
- 3 Cleaning Modes: Auto, Floor, and Walls & Waterline — covering every surface, even slopes and platforms.
- Ultra Cleaning Mode*: Boosts cleaning power by 30% in Ultra Mode for deep cleaning with enhanced suction and full-coverage scrubbing.
- Smarter App Control: Set weekly schedules, runtimes, and delay starts — all from your phone.
- Large Dual-Zone Filter: 4.1L basket with 180μm mesh traps 40% more debris than standard filters.
- Durable Motors: Salt- and chlorine-resistant motors last up to 3× longer than others.
- Auto-Docking: Automatically returns to pool edge — pick up effortlessly.
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Brand Notice
This product is manufactured and sold by Chasing and is not affiliated with, sponsored by, or associated with Robelle or its pool chemical products in any manner. All after-sales services, technical support, and customer assistance relating to the “POOLMATE” robotic pool cleaner products are independently provided by Chasing.
Ultra Smart. Ultra Complete.
Hydro 4 Robotic Pool Cleaner
The only pool cleaner you'll ever need for all kinds of pools.
Why Hydro 4 Stands Out as the Most Powerful Pool Vacuum
Industrial 1st Design
Power That Pulls Everything In
Dual centrifugal pumps deliver a massive 5,070 GPH through twin inlets & dual-zone basket — the front traps larger debris, while the rear captures fine sand and silt. Wider coverage, twice the cleaning, zero effort.
Chasing – Tap into Smart Control
Beyond Smart.Now Real-Time.
Experience Hydro 4’s real-time underwater operation and remote control. Steer, switch modes, or call it back — all from the app, even mid-clean. Monitor status, set timers, and customize runtimes wherever you are. OTA updates keep it smart and getting smarter.
Precision Control. Wherever You Need It.
Navigate 360° Manually
Need a spot clean or want to redirect mid-cycle? Just tap and steer. With manual 360° navigation, you can guide Hydro 4 smart pool vacuum anywhere in your pool — ideal for tight corners, quick cleanups, or custom routines. It’s remote control, redefined.
Next-Gen Horizontal Waterline Mastery
The Waterline Specialist
Unlike top-jet designs, our patented Lateral Movement Tech uses dual side jets to tilt the body up to 2 inches, delivering stable, continuous waterline cleaning. With Active Brushes and reinforced wall-climb control, this top rated robotic pool cleaner grips tile, vinyl, and mosaic for effortless 0–90° transitions and full 3D scrubbing.
It Makes Your Pool Care Effortless
Effortless Wrap-Ups
Set it and forget it — When the job’s done or the battery’s low, your robot auto-docks and floats to the surface, making pickup a breeze. Need it back early? Just tap for instant retrieval—anytime you want. At only 14.33 lbs with a snap-out filter basket, cleanup is quick and hassle-free—just like your pool should be.
Perfect For Medium to Large Pools
Hydro 4 efficiently cleans medium to large in-ground and above-ground pools up to 1,614 sq. ft. for Private pools/Public pools, geometric or freeform designs.
