Our Pool Cleaner Review Panel says:
The Dolphin Diagnostic DL2019 comes in 3rd place in our top 5 pool cleaners due to its affordability, design and functionality. Though the Diagnostic lacks in a couple different areas when compared to its rival the Aquabot, it is still a decent cleaner with a moderate price tag. Maytronics is the manufacturer of Dolphin cleaners and has 25 years of history in creating quality pool cleaners. This unit also comes with a 2 year warranty on the motor along with a 1 year “bumper to bumper” warranty on the unit.

When you lift the Diagnostic out of the box, you will find a pretty simple 21 lb. pool cleaner with a unique color distinction. Almost all Dolphin pool cleaners are easily identified by their multi-colored body. When we went to test the unit, it was very similar in operation to other models like the Aquabot. The robot has a 65’ average length cord that reaches to the transformer box. This box controls the power which is supplied to the pool cleaner and cleans your pool fairly similar to any other manufactured pool cleaner.

One thing about the Dolphin pool cleaner that we didn’t seem impressed with was the average cleaning time. For pool owners who aren’t concerned with the time it takes to clean their pool and would rather have it clean all night, the 3 hour cleaning time for the Diagnostic will be just fine. Though one thing they could have improved on is keeping the competition with other companies. For instance, if you were to compare the Aquabot T2 or T4RC, both of those units are machines rated to clean your pool in 1 hour. Of course speed comes with a higher price tag, which some people could do without. Also, this unit will not come with an adjustable timer feature like other models, but instead an auto-shut-off timer which shuts the unit off after 6 hours of continuous use.

Like other pool cleaners, the Dolphin Diagnostic has a cloth filter for collecting debris and filters down to 2 microns which seems to be the average filtration rate for pool cleaners of today. Bacteria that equals 2 microns in size is not visible to the eyes, therefore it does a great job of filtering the water and keeping a pool clean with very little maintenance.

The Diagnostic is also rated high on cleaning your entire pool which includes the surface, side walls up to the water line and steps. When we tested the machine and it’s climbing abilities, it did a decent job. We found that the Aquabot seemed to navigate better than the Diagnostic leaving places like steps and ladders harder to reach. It is designed with a standard brush system with vacuum ports that stick out facing the surface floor. These vacuum ports are diagonal from one another and are designed for complete control throughout the unit. This design is standard on most cleaners and by no means is an industry breakthrough; it’s just the proven way that pool cleaners vacuum the most efficiently.

Conclusion: All in all, we gave the Dolphin Diagnostic DL2019 our 3rd place award based on comparisons to other models and the overall performance and features of the unit. If you want a standard cleaner with a good warranty, the Diagnostic might be your choice. If you want any additional features or latest technology, you’re more likely better off with an Aquabot T series cleaner.

Power supply

IP 54
Output less than 30 VCD

Dolphin Diagnostic DL2019:
The Dolphin™ is the world’s first and best selling robotic pool cleaner. And after 25 years of scrubbing pools clean, it still leads the industry with its advanced electronics, rugged construction, superior cleaning performance, and unequalled service record. The Dolphin scrubs and vacuums the pool floor, walls and waterline and microfilters the pool water - it’s like adding another filter to your pool! The Dolphin’s reusable filter bag is designed with the optimum porosity to catch the smallest debris yet avoid clogging. It operates with it’s own pump and filter system which avoids the wear and tear on your pool pump and filter caused by water-powered cleaners. In fact, the Dolphin™ saves you up to 50% on electricity and backwashing costs and up to 30% on chemical costs! The Dolphin’s water-cooled motors (no oil to leak) are guaranteed for 24 months. Its extra long 50 ft. self-floating cord is attached to a weatherproof 24 volt transformer which is ETL listed for outdoor use. No installation is required – just plug it in. It even has a built-in 6 hour auto shutoff and advanced, self-diagnostic software.

* Recommended for pools up to 12m. (40ft.) in length.
* Cleans pool floor, walls and water line.
* Scrubs, brushes, vacuums and filters the entire pool, floor walls and water line in just 3 hours.
* Large ultra fine filter bag collects dirt, debris and even dust particles.
* Advanced self-learning scanning programme, optimizing pool coverage.
* Environmentally-friendly cleaning process, requiring less chemicals.
* Reduces the use of chlorine and other chemicals, helps eliminate algae and bacteria.
* 36 months warranty.