Whereas the robovac maintains its popularity as much on its appearance as its practical utility, the poolbot must rely upon its work ethic alone. This is not to suggest that poolbots hold limited aesthetic appeal, just that as they work below normal human scrutiny, their virtue lies in their performance instead of their cosmetics. If poolbots worked no better than robovacs, their ratings would likely diminish markedly. The primary issue is suction. A robovac hardly bigger than a stuffed crust hubcap is not going to manifest the necessary suction to compete with an upright vacuum cleaner.
Poolbots, by their submarine nature, have to possess a lot of suck. They must run a vast amount of water through them in order to work their magic. They operate tethered, which provides them the power to run on wheels or tracks as well as enough suction to keep them affixed to bottoms and walls. Because they don’t have to look cute, they can be big enough to contain a decent amount of accumulated leavings. The Hayward Tigershark QC utilizes a cartridge filter instead of a bag, making clean-up a snap. The Aquabot Supreme is designed for in-ground pools up to 50 feet long and will clean upwards of 6800-square feet in an hour. The bubble gum-looking Water Tech Blue Diamond RC can be operated by remote control for targeted cleaning.
The Maytronics Dolphin Zenit 30 is one of a veritable school of Dolphins, each offering a variation on the one preceding. Like the Blue Diamond RC, the Zenit can be operated by remote control for either manual or automatic use. This poolbot has settings for the bottom and sides, and you can also program the duration of its cleaning cycles. The Zenit brushes, scrubs, vacuums and filters the entire pool from the bottom to the waterline. The dual-level filtration system is effective for all types of detritus and is accessible from the top, making maintenance convenient. It has one-way valves which prevent the escape of dirt back into the water. Its swivel cable reduces tangles, and a full filter bag indicator alerts you when it's time for you to do some cleaning yourself.
Zenit 30 has 36 months warranty on all parts.
It has clogged filter bag indicator to ensures ongoing cleaning efficiency