Mineral Purifiers

• Mineral purifiers are a popular choice for people who seek a somewhat natural option for sanitizing their swim spa water. It is the best choice for those who do not use their swim spa that often, as mineral purifiers require very little maintenance. The mineral purifier is simply placed inside of the spa's filter, and you add an activator to the water before each use. The mineral purifier needs replacement every four months (as long as the spa is not drained) and requires no other maintenance. Mineral purifiers meet all standards for sanitation and disinfection. This would be the best way to sanitize your swim spa if you do not use it regularly and are seeking a low-maintenance option.
  
  

Chlorine

• The most common type of swim spa sanitizer is chlorine. Chlorine is a chemical sanitizer that works by killing bacteria, keeping it clean and controlling bacterial proliferation. Chlorine must be added to every other day to make sure that the water maintains a consistent level of chlorine, somewhere in the range of one to three parts per million. Various test kits measure the level of chlorine in your swim spa water. Chlorine may not be the best option if you do not regularly use your swim spa, as it requires constant maintenance even while not in use.
  
  

Two-Part Bromine

• Two-part bromine is an extremely effective way of sanitizing your swim spa without chlorine, which many people find irritates their eyes and skin. A two-part bromine system consists of adding a sanitizer (bromine liquid salts) every week, ensuring that there is a ready supply when you need to sanitize the water. Then every week (or after every use of the spa), simply add the activator to clean the water. This method is a good option for people who use their spas once every week or so, perhaps on the weekends.