Continuous Power for Stable and Efficient Everyday Cleaning
- 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.
Less Cleaning. More Living.
Hydro 4 SE Corded Robotic Pool Cleaner
Continuous Power & Heavy-Duty Cleaning for Medium to Large Pools
What Makes Hydro 4 SE Different
Industrial 1st Design
Dual Cleaning System
Dual centrifugal pumps deliver 5,070 GPH through dual inlets & dual zone basket for wider coverage and twice cleaning, front filter zone traps larger debris, while its rear zone performs a follow-up clean-up to capture minute sand and grave. This powerful cleaning system makes Hydro 4SE the best pool cleaner for leaves in fall & winter.
HydroCurve™ S-Shaped Navigation
Every Inch, Full Coverage
Patented HydroCurve™ S-shaped navigation covers 95% of your pool with less overlap than random paths, adapting to round, L-shaped, and freeform layouts while tackling slopes, steps, and corners for true wall-to-wall cleaning. This is the one corded pool vacuum for all types of swimming pools.
Next-Gen Horizontal Waterline Mastery
Cling. Scrub. Shine.
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 best suction side automatic pool cleaner grips tile, vinyl, and mosaic for effortless 0–90° transitions and full 3D scrubbing.
Chasing – Tap into Smart Control
Your Pool, Your Rules
Switch modes, set weekly timers, delay starts, and customize runtimes—all from the Chasing app. OTA updates ensure your wifi pool cleaner keeps getting smarter, giving you effortless, always-updated pool care in the palm of your hand.
Unmatched Durability with Deep-Sea Tech
Safe. Proven. Trusted.
Hydro 4SE is the best corded pool vacuum eqquipped with IP68 waterproof motor and anti-chlorine coating design. FDA-certified silicone brushes clean all pool surfaces, while the BMS battery system ensures safe, reliable operation. Two-year warranty included for worry free.
It Makes Your Pool Care Effortless
Hassle-Free Auto-Docking
Set it and forget it—when the cleaning cycle comes to an end, it automatically docks for easy retrieval. 14.33 lbs easy to lift, Quick-release filter basket makes cleaning a breeze!
Perfect For Medium to Large Pools
Hydro 4 SE is the best rated automatic pool cleaner for medium to large in-ground and above-ground pools up to 1,614 sq. ft. for Private pools/Public pools, geometric or freeform designs.
Trusted by Experts
Featured by leading media and recognized with international recognized design awards.
Frequently Asked Questions
What kind of pool is suitable for a robotic pool cleaner like Hydro 4 SE?
What kind of pool is suitable for a robotic pool cleaner like Hydro 4 SE?
This automatic pool cleaner is ideal for pools up to 15 meters long and 150 square meters in area, regardless of shape. It’s compatible with various materials, such as vinyl, fiberglass, and ceramic, making it versatile for different swimming pool types.
What types of water can this pool cleaner handle?
What types of water can this pool cleaner handle?
The Hydro 4 SE is designed for freshwater residential pools, including in-ground and above-ground pools. It works effectively in chlorinated and saltwater pools with a salt concentration of up to 5,000 ppm.
Which areas of the pool can Hydro 4 SE clean?
Which areas of the pool can Hydro 4 SE clean?
Hydro 4 SE robotic pool cleaner effectively cleans the pool bottom, walls, and waterline, providing comprehensive automatic pool cleaning for a spotless swimming experience.
Can l place Hydro 4 SE pool robot anywhere in the pool to start working?
Can l place Hydro 4 SE pool robot anywhere in the pool to start working?
Yes, you can position this robotic pool cleaner anywhere in the pool to begin the cleaning cycle. Its user-friendly design allows for flexible setup.
How many filter type does it have?
How many filter type does it have?
Hydro 4 SE robotic pool cleaner comes with a single filter type. Please refer to the filter documentation for more details on its advanced pool filtration system.
How many cleaning modes does Hydro 4 SE robotic pool cleaner have?
How many cleaning modes does Hydro 4 SE robotic pool cleaner have?
Hydro 4 SE robotic cleaner offers three cleaning modes: Standard, Fast, and Ultra, allowing you to choose the automatic pool cleaning mode that best suits your pool’s needs.
Can I use Hydro 4 SE in rainy days?
Can I use Hydro 4 SE in rainy days?
Yes, Hydro 4 SE automatic pool cleaner can be used on rainy days. However, to ensure the durability of the device, the power control box should be kept dry and placed under a sheltered area to avoid prolonged exposure to rain.
Why can't the APP connect to the Hydro 4 SE machine after it enters the water?
Why can't the APP connect to the Hydro 4 SE machine after it enters the water?
According to the product design, the Hydro 4 SE only supports communication connections in ground environments. When the device is submerged, Bluetooth signals are blocked by the underwater environment, preventing the APP from connecting to the machine.