Many enjoy the health benefits of sitting in a hot tub daily. They are proven to reduce stress, ease muscle pain, improve circulation, reduce arthritis pain, and encourage increased blood flow. To enjoy these benefits, hot tub owners must make sure their spa is clean and well maintained. According to Pool and Spa News, “Recreational water illnesses remain the No. 1 health risk plaguing the aquatic industry.”
Many hot tub owners use chlorine to maintain their hot tub, however there are some water illnesses that are very resilient to the chemical. One that is a major concern is cryptosporidium parvum. “According to the National Swimming Pool Foundation’s Pool & Spa Operator Handbook, it takes 20 ppm of chlorine at 12.75 hours to inactivate crypto.” Ozone is able to destroy cryptosporidium at a rate of 99.9%.
A 2005 article in “Water Conditioning and Purification” estimated that up to 85 percent of the chlorine used in a spa without any other water sanitation system is consumed in oxidation processes, just 2.5 percent is used for disinfection, another 2.5 percent maintains residual levels in the water and 10 percent is destroyed by the hot water in the tub.
“The most efficient, effective way to inject ozone into spa water is through a Venturi injector, which uses the flow of water through a specially constructed pair of cones to draw ozone into the liquid and create an ozone/water slurry. To maximize the draw of gas into the flow and ensure thorough mixing, both cones and the orifice of the Venturi injector must be exactingly engineered and constructed,” Aqua Magazine writes.
A2Z Ozone’s Spa and Pool products utilize the venturi injection method to pump fresh ozone into the spa water. Once installed, hot tub ozone generators are maintenance free.
A2Z Ozone manufactures two spa ozone generators. The Aquatic is made for larger spas fitting up to 10 people, or spas holding up to 1,500 gallons of water; approximately 5,678 liters of water. The Aquatic 2 is perfect for small spas that hold up to 500 liters, or 132 gallons.