Layer Technology

Regular dilution of water is another means of reducing illness risk. This is already practiced on public pools in Europe, where the entire pool must be diluted with fresh water over a month’s time. Some other standards suggest adding 30 liters a day of fresh water for every swimmer in the pool.

Enhanced Filtration

Another viable method that any facility or pool can begin using immediately is enhanced filtration. The CDC and many aquatic experts have long considered filter enhancement with the use of specialty clarifiers. This technology uses two opposing biopolymers that quickly and effectively entrap microorganisms, such as algae, E.coli and Crypto. This method has been soundly proven through an independent study conducted at Auburn University. The study showed stable flocs of Crypto were able to form and be held in simulated sand filters. There was a 99.99 percent removal of Crypto from pool water using sand filtration treated with the two-stage polymer.

Although RWIs–especially Crypto–continue to be a major challenge for pool professionals, multiple technology layers will most likely be the key to providing safe and disease-free swimming pools.

Terry Arko has worked in the pool and spa industry for over 25 years, and has experience in service, equipment repair, retail management and chemical manufacturing. A Certified Pool/Spa Operator, he has spent the last 14 years as a technical consultant specialist in chemical water treatment. Terry is a Products Specialist for SeaKlear Pool and Spa Products, located in Bothell, Wash.

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