What is the recommended bromine level for a spa and wading/therapy pool?

The recommended bromine level for a spa and wading/therapy pool is typically in the range of 4.0-8.0 ppm (parts per million). This range is crucial for maintaining effective sanitation and ensuring a safe and comfortable experience for users.

Bromine is a sanitizing agent that works effectively in higher temperatures commonly found in spas and therapy pools. The slightly elevated levels of bromine are necessary due to the reduced water volume and higher bather loads in these types of pools, which can lead to a quick depletion of sanitizers. Maintaining bromine at this level helps to control bacteria and avoid the growth of harmful microorganisms.

The alternative ranges provided in the other options do not align with the established standards for spa and therapy pools. Bromine levels below the recommended 4.0 ppm may lead to insufficient sanitation, increasing the risk of waterborne illnesses. Conversely, levels exceeding 8.0 ppm could cause irritation to bathers and potential damage to pool equipment. Therefore, the range of 4.0-8.0 ppm ensures a balance of effective disinfection while maintaining user comfort and safety.