How much chlorine should be in a hot tub?
Ideal range 3-5 ppm
When first starting a spa with Chlorinating Concentrate, test the free chlorine residual frequently to determine how often you will need to apply product. Add 2 tsp. of per 200 gallons at a time with the pump running. Circulate 2 hours, then retest the free chlorine residual. Adjust as needed.
FreshWater Salt and FROG @ease SmartChlor have different instructions and ranges. Consult their respective manuals for more information.