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Dolphin W20 Robotic Pool Cleaner

Reviewed by Robert Knight

3.5 | Reviews

$2099

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Key Features

✓Remote Control
✓CleverClean
✓Energy Saver

Scorecard

Ratings

Waterline Cleaning	Bad
Filter	Bad
Coverage	Bad
User Experience	Good
Warranty	Excellent
Overall Score	66

Highs & Lows

The pros and cons of the Dolphin W20

Highs

Anti-Tangle Swivel - Prevents Tangles
3 Year Warranty
2 High Speed Scrubbing Brushes
Energy Efficient Motors

Lows

Restocking Fee Up to 20%
No Weekly Timer - Can't schedule Cleanings
Not a great value when compared to alternative robots
Better Value Units Avaliable
No Smartphone App

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Anti-Tangle Swivel

No more tangled cords.

With an Anti-tangle Swivel, the Dolphin W20 can fully explore and clean your pool without ever getting stuck. The innovative design allows the robot to move freely 360 degrees around your pool, without ever knotting the cord.

Ultra Efficient

Save Hundreds of Dollars Cleaning Your Pool a Year!

Dolphin W20 saves hundreds of dollars a year in energy when compared to pressure-side or suction-side cleaners.

Plug and Play

Simply Plug Dolphin W20 in and start cleaning!

Set up has never been easier. No installation needed. Dolphin W20 is ready to go right out of the box. No extra pumps, plumbing, or anything else needed. Simply plug W20 and start cleaning!

Precise Navigation

CleverClean™ coverage is powered by an advanced navigation system. This technology ensures that the most effecient route is used to clean your pool floor. So smart, the system automatically navigates around obstacles and quickly returns to its route.

Videos

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Maytronics

All Videos 1 videos

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Availability

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In-Store Exclusive

$2099

Similar Robots

The Dolphin W20 is only sold in-stores. Robots that are sold in-stores only are often overpriced when compared to their online counterparts. Usually marked up $100-300 more and with a shorter warranty, you may want to consider an alternative robot.

Looking for the best deal on the Dolphin W20 and other robotic pool cleaners? Look no further, we have you covered. We searched the web and found the best deals on Maytronics, Aquabot, Polaris, and other cleaners.

Dolphin Sigma

4.9

693 Reviews $1897

Highs

Dolphin's Best Pool Robot Yet - More Features, More Filters, & More Power.
Most Advanced Dolphin Ever - Utilizes Gyroscope
Includes NanoFilters - Unlock a Deeper Clean
Quad Scrubbing Brushes - 4X Cleaning Power
Utilizes 3 Dolphin ProLine Commercial-Grade Motors

Learn more about Sigma Compare W20 vs Sigma

Dolphin Premier

4.9

2163 Reviews $1747

Highs

Only Dolphin with a Leaf Bag - includes Multi-Media
Waterline Cleaning Beast
New, High Performing Dolphin ProLine Model
NanoFiltration - Premier's NanoFilters allow it to clean deeper than standard Dolphin pool robots
3 Year Warranty

Learn more about Premier Compare W20 vs Premier

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Questions & Answers

Common questions about the Dolphin W20

Why won't this cleaner climb the walls?

Above-ground robotic pool cleaners are designed to clean the floor only. In-ground cleaners with wall-climbing capability are built differently; check your model's specs for floor-only vs floor, walls, and waterline.

How long do robotic pool cleaners last?

With proper care and normal use, most robotic pool cleaners last 3–7 years. Lifespan depends on usage frequency, pool chemistry, surface type, and whether you store and maintain the unit as recommended.

Can I leave my robotic pool cleaner in the pool?

It's best to remove the cleaner after each cycle and store it in a shaded, dry place. Leaving it in the pool can expose it to sun, chemicals, and debris, which can shorten its life.

Do robotic pool cleaners need to be plugged in?

Most plug into a standard 120V outlet via a low-voltage cable and control unit. A few models are cordless and run on a rechargeable battery; check your product's specifications.

How often should I run my robotic pool cleaner?

Running it 2–3 times per week is typical for many pools. Heavy debris, high use, or large pools may require more frequent runs; smaller or covered pools may need less.

Why is my robotic pool cleaner not moving?

Check that the power supply is on and the cable isn't tangled or caught. Ensure the filter basket isn't overfull and that the unit isn't stuck on a step or drain. If it still doesn't move, refer to the manual or contact support.

Do I need to use my pool pump when running the robot?

No. Robotic pool cleaners run on their own power and filtration. You can run them with the pump off, which can save energy compared to pressure or suction-side cleaners.

What voltage does a robotic pool cleaner need?

Most residential robotic pool cleaners use a standard 120V outlet. The control box steps this down to low voltage for the floating cable. Check your manual for your model's requirements.

Can I repair my robotic pool cleaner myself?

Simple tasks like cleaning filters and unclogging impellers are usually fine. For motor, cable, or electronics issues, use an authorized technician or the manufacturer's support to avoid voiding the warranty.

What's the difference between cartridge filters and a debris bag?

Cartridge filters are reusable: you rinse or wash them and put them back. Debris bags are often disposable or optional for heavy leaf pickup. Some robots include both; check your model for options.

What is the typical life span of a Dolphin robot?

Dolphin robots are designed to last many seasons. Lifespan varies by model, amount of use, pool chemistry, and pool surface. Following the manual and storing the unit properly helps maximize life.

What DIY repairs can I complete on my Dolphin?

DIY repairs should be done by an authorized technician. Contact your local retailer, Maytronics at 1-888-365-7446, or the support page on the manufacturer's website for service.

What are the voltage requirements for the Dolphin power supply?

Dolphin units use a standard 120V outlet. The power supply converts this to the low voltage used by the cleaner. Do not use extension cords unless specified in the manual.

Where can I get Dolphin replacement parts and filters?

Replacement parts and filters are available through authorized Dolphin/Maytronics dealers, the manufacturer's website, and many pool retailers. Use genuine parts to keep the warranty valid.

Does my Dolphin work with saltwater pools?

Yes. Dolphin robotic pool cleaners are built to work in both chlorine and saltwater pools. Rinse the unit with fresh water after use to limit chemical and salt buildup.

Pool Types	In Ground
Pool Size	68 ft
Pool Shape	Rectangular, Free Shape, Hopper, Kidney, Zero (beach) entry
Obstacles	Steps, Ladder, Drain Cover, Ledges, Pop-Ups
Surface	Gunite, Fiberglass, Vinyl, Liner

Product Manual

Quick Start Guide

Waterline Cleaning	No
Number of Filters Included	1
Filter Cleaning	Bottom Access
Cleaning Coverage	Floor
Cleaning Cycle(s)	3 hrs
Number of Brushes	2

Remote operation	Yes
WiFi / Bluetooth	WiFi: No Bluetooth: No
Smartphone App	No
Automated Weekly Timer	No

Full Bag Indicator	No
Cable Length	80 ft
Anti-Tangling Swivel	Yes
Restocking Fee	No No Restocking Fee Ever.
Warranty	3 Years
Caddy Included	Optional Caddies Available
Part Number	99996904-US
ASIN