Did you know that in just 15 minutes 1 person will use up approximately 1 ppm of Chlorine or Bromine. In other words if you and 3 friends are in the hot tub for just 30 minutes you will use up 8 ppm of sanitizer. If you are keeping your tub at the suggested 3-5 ppm you can see how the demand is higher than the treatment supply. In order to make up for this difference you will want to give the hot tub a quick treatment with granular chlorine or bromine to ensure the level returns to a safe range of 3-5 ppm. If the tub is left even just a couple of hours without sanitizer it will result in cloudy, green and/or smelly water.
The diagram below is a great guide to help you with some basic fixes for your hot tub water care.
For more information on safe and proper treatment for your hot tub, come in and see our experts at Backyard Leisure.
You can also check out our Water Care FAQ page here.