Suction Pool Cleaners: 5 Fast Facts

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Fact #1. Swimming pools came to mainstream popularity in the West during the 20th century. However, the first pool was likely dug in Pakistan between 3000 BCE and 2000 BCE. It was similar to any large contemporary community pool, but the Great Bath was probably used in religious ceremonies, according to historians.
Fact #2. Pools retained a strictly ceremonial role for at least 2,000 years. Eventually, the Greeks and Romans began using them for sports and nautical military training. Romans were the first to realize the leisure potential of the pool. A number of personal pools were built by members of the wealthy set.
Fact #3. As the home swimming pool industry expanded, so too did the pool maintenance industry. For decades, consumer choices were limited and ineffective. Finally, in 1967, a so-called robotic cleaner that used electricity was invented. Many of today's suction cleaners share a number of traits with this device. Five years later the famed Polaris Pool Cleaner was released. It paired pressurized, water-dispensing hoses with the automatic functionality of earlier inventions. It was the most effective pool cleaner of its time.
Fact #4. There are primarily two categories of pool cleaning devices. The first is suction-side. Suction-side cleaners use only the water pulled out of the pool by its pump to provide suction and movement. This is regarded as the most popular and affordable pool cleaning technology. They're energy-efficient compared to other technologies. However, they can still increase electricity costs by decreasing the effectiveness of a pool's pump.
Fact #5. The second category of pool cleaning devices is pressure-side. These use an external pump to pressurize water inflow, which kicks up pool-floor silt and debris. What isn't sucked up by the cleaner itself can then be pulled into the pool's own filtration system. These are far less efficient than suction-side cleaners.