Chlorine Cant Kill Cryptosporidium

Chlorine may be the most common pool sanitizer, but can it kill Cryptosporidium?

August 25, 2021
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The Silent Killer in Chlorine Pools

Chlorine is the most widely used swimming pool sanitizing method worldwide.  In spite of its prolific use, cautious and concerned swimmers are beginning to question the health side effects of swimming in a chlorine pool. Many people are aware of the commonly known issues such as dry hair, itchy skin, breathing problems, and even long term health side effects.

While chlorine is advertised to be able to sanitize most pathogens in pool water, one parasite that has developed a resistance to chlorine is crypto. No, not Bitcoin or Ethereum, but Cryptosporidium,  a microscopic parasite that causes the diarrheal disease cryptosporidiosis. Both the parasite and the disease are commonly known as “crypto.”

Like many parasites, there are many species of Cryptosporidium and some are considered quite dangerous to humans. The parasite itself is protected by an outer shell that allows it to survive outside a host for long periods of time which makes it very tolerant to chlorine disinfection.

Approximately 35% of Cryptosporidium outbreaks occur in swimming pools (the rest in farm animals), 99.9% of which are sanitized by chlorine, which has been unable to stop this outbreak on the rise. According to the CDC, from 2009 to 2017 there was a 13% annual increase in Cryptosporidium outbreaks, and the numbers are rising.

Internationally, this is one of the more important pathogens to be on everyone’s radar,” says Joseph Eisenberg, Ph.D., M.P.H., chair of epidemiology at the University of Michigan's School of Public Health. Crypto often enters the body by swallowing pool water. Infants in swimmer diapers are a major culprit in transferring the parasite, as they have often not perfected their "toileting skills".

In spite of the resistance Cryptosporidium has developed to chlorine, public health experts still recommend hyper-chlorination after a pool has been exposed to crypto. What does this mean? While the CDC advises that people should be "safe" to swim in pools that have a chlorine level of between 2.0 to 4.0 ppm, the same agency recommends that following a crypto incident a pool should be hyper-chlorinated with shock and other chemicals so the pool maintains a chlorine level of between 10.0 to 20.0 ppm!!

Not only is this unsafe and toxic to humans, but it may not even eliminate the actual crypto problem!

 Did you know that the Aquastaser can destroy Cryptosporidium with zero chlorine or chemicals?

The Aquastaser's patented process is based on a scientific principle called hydrodynamic cavitation (HDC). HDC is also utilized in many industrial applications, including waste-water treatment facilities. While tremendous research has been invested in the science behind HDC and its ability to clean polluted water, a brand new application is its ability to clean and sanitize swimming pools.

"The science behind cavitation can transform sewage into grey water, and the Aquastaser uses it to perfectly clean swimming pools", says Aquastaser founder and inventor Rich Wambsgans.

Extensive studies testing HDC have demonstrated that HDC neutralizes toxic cyanobacteria (Microcystis aeruginosa), green microalgae (Chlorella vulgaris), bacteria (Legionella pneumophila) and pathogens in water, including Cryptosporidium.

While the ordinary benefits of the Aquastaser on a residential pool are revolutionary - no chemicals, no chlorine, balanced pH, huge cost savings, natural and organic, etc. - pathogens and bacteria can not survive in a pool with an Aquastaser, and of course can not develop resistance to its process.

For more information on the Aquastaser and for all of the ways it can transform your pool into a natural and clean, chlorine free swimming oasis, without any chemicals ,learn more at

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