Sodium Bromide for salt for salt systems in hot tubs. Works with chlorine generators or bromine generators. 99% Sodium Bromide for use with the Genesis Bromine Generator. Replacement for Tru-Blu, tru blu, true blue or HASA Spa Bromine reserve. Use 2 lbs for every 100 gallons of spa water. The Sodium Bromide or salt level in your spa should be between 1500–1900 ppm. Consult the chart on your bottle of Tru-Blu Test Strips - the reading should fall between 7.6 and 8.0. When it is time to increase the amount of sodium bromide in the water, use a two ounce measuring cup. Two ounces will increase the Sodium Bromide level by 70 ppm per 100 gallons.\r\n
