$999.99 on Amazon
The iRobot Mirra 530 Pool Cleaning Robot is designed to deep clean pool water and surfaces. It can remove items ranging from bacteria two microns across to leaves, plus anything in-between like hair, algae and dirt.
Mirra 530 uses a PVC scrubbing brush to get grime off the pool walls and floor. It also scrubs the water line where bacteria and oils can accumulate. The vacuum cleaner sucks in the dirt along with the water. The robot has two motors, one of which drives it. The other motor pumps and filters 70 gallons of water per minute.
The pump and filter deposit debris into the canisters on the robot's top. The robot's movements through the pool reduces hot spots and spreads chlorinated water evenly through the pool. The robot's PVA wheels give the robot traction on slick surfaces like vinyl or ceramic. It can even climb stairs.
This cleaning robot is easy to use. No installation is needed; just put the robot in the water and turn it on by pressing the CLEAN button. Similarly, it does not need or use cumbersome hoses. It has technology, including iAdapt Nautiq Responsive Cleaning Technology For Pools, that enable it to determine the size and shape of the pool and then select the most efficient cleaning cycle. The robot makes multiples passes through the pool, thus ensuring it gets every microbe or speck of dirt.
Cleaning the robot is also easy. There are two quick-drain valves on the bottom that let the robot drain quickly. The debris that the robot collects while cleaning end up in a pair of top-load canisters. Cleaning these is just a matter of opening the doors, taking out the baskets and emptying them.
Mirra 530 is 16 by 13.8 by 12.1 inches and weighs 20 pounds. It comes with a 60 feet long power cord that floats and comes with a swivel detangler. An optional carrying caddy makes it easy to move and store the robot.