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The Dolphin Sigma is a robotic pool cleaner for in-ground residential pools up to 50 feet. It scrubs floors, walls and the waterline with dual brushes and traps debris in large top-loading cartridge filters, so there are no bags to rinse out. A weekly scheduler runs it daily, twice or three times a week, and Bluetooth lets you spot clean from a phone. It sits at the top of Dolphin's line: the swivel cable, smart navigation and 3-year warranty go beyond cheaper models that clean floors only or lack app control. Owners like the cleaning results and the easy filters; the common complaints are the weight when lifting it out and the price of entry.
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Owners report strong cleaning on floors and walls and praise the cartridge filters over mesh bags. The main complaints are the weight when hauling it out and the need to clean the filters often.
The Dolphin Sigma is a robotic pool cleaner for large residential pools up to 50 feet. It has an anti-tangling swivel cable that lets it move freely around the pool. It is backed by a 3 year quality assurance.
Two scrubbing brushes remove algae and bacteria from the floor, walls and waterline. A full cleaning cycle takes 2.5 hours. Large top-loading cartridge filters trap fine and ultra-fine debris, so there are no bags to clean.
A weekly scheduler can run the cleaner daily, 2 times per week or 3 times per week. Bluetooth connects it to a smartphone for spot cleaning when needed. Navigation and scanning software plans an efficient cleaning route and helps it work around obstacles.
