Corded robotic pool cleaners: floor, walls and waterline without relying on the filtration system
A corded robotic pool cleaner is a self-contained unit that runs from its own power supply and cleans the pool without using the filtration system, trapping the debris in its own filter. Here Q-Tech brings together Dolphin and BWT robots for private pools up to 12 m long.
How to choose between Dolphin and BWT
Q-Tech has selected the brands in this collection on technical criteria and for the good results obtained in our installations. We suggest looking at Dolphin if you want dual filtration with fine and ultra-fine cartridges, CleverClean scanning and an included transport caddy; BWT, if you prefer to choose between three models for 10 to 12 m pools with a 4D filter and, on the D600 APP, control from your phone.
| Parameter | Dolphin (Maytronics) | BWT |
|---|---|---|
| Maximum pool length | 12 m | 10 to 12 m, depending on the model |
| Cleaning areas | Floor, walls and waterline | Floor, walls and waterline |
| Floating cable | 18 m with anti-tangle swivel | 18 m with anti-tangle swivel |
Summary for information purposes only, prepared by Q-Tech in November 2026 from the technical data sheets each manufacturer publishes, to help you get your bearings among the brands we sell. It is general and indicative: manufacturers update their data and a summary may contain errors, so each product page and the manufacturer's documentation always prevail, without prejudice to your rights as a consumer (Legal Notice). It is common for customers to change their mind once they know each brand's strengths, or to find that a feature they liked is not essential in their case.
A pool cleaner runs for many years in your home, and a choice that does not fit your installation shows up in running costs and in wear on the unit. If you want to decide with the data of your own case, you can book our professional technical advice (a paid service): an Expert Technician reviews the features of your home and installation with you and guides you with Q-Tech's experience, under an obligation of means (Legal Notice).
Models in this collection
| Model | Pool | Cleaning cycle | Highlights |
|---|---|---|---|
| Dolphin Zenit 15 | Up to 12 m | 2 h 30 min | Dual filtration and transport caddy |
| BWT Tornado D600 APP | Up to 12 m | 1.5, 2 or 2.5 h | Phone control, LED light and caddy |
| BWT RC50 | Up to 12 m | 1.5, 2 or 2.5 h | Vibrating brush and hyperfine 4D filter; no caddy |
| BWT Tornado D500 | Up to 10 m | 2 h | GYRO and AQUASMART navigation and caddy |
Data according to Maytronics and BWT.
How to choose a corded robotic cleaner
- By pool length: up to 10 m, the Tornado D500; up to 12 m, the Zenit 15, the D600 APP or the RC50.
- By control: the D600 APP is steered from the mobile app; the others work on their own with their cleaning cycle.
- If there is no socket near the pool, see the cordless pool robots; if you prefer to use the filtration pump, the hydraulic pool cleaners.
Applications
- Weekly maintenance of private in-ground pools up to 12 m.
- Cleaning of walls and waterline as well as the floor.
Why buy a corded robot from Q-Tech?
- If the robot fails, the pool cleaning robot fault diagnosis gives you a report and a quote for the repair before you decide.
- The shop stocks Dolphin and BWT pool cleaner spares and accessories: cables, filters, baskets and power supplies.
- For questions before buying, you can book a technical call with an Expert Technician or message us on WhatsApp.
Frequently asked questions
What is the difference between a corded and a cordless robot?
A corded robot receives power throughout the cycle through the floating cable and does not depend on a battery; a cordless robot runs on a battery and needs no socket near the pool.
What cable length do I need?
All four models come with 18 m of cable with a swivel, according to their manufacturers, designed for pools up to 10 or 12 m depending on the model.
What should I do if the robot does not start or does not climb the walls?
Check the filter and the cable; if the problem persists, the workshop diagnosis identifies the fault with the manufacturer.
See the rest of the range in Pool cleaners and choose the robot by the length of your pool.
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