Spa Bromine Start dissolves quickly leaving no residue, establishing an instant bromine reserve. After refilling your spa or hot tub or anytime the bromine level needs a boost just add Bromine Start along with Natural Chemistry's Bromine Tablets or Spa Oxidizing Shock to activate.
Note: Sodium Bromide is not a disinfectant. It is used to establish a reserve of bromine in spa or hot tub water. Spa Bromide is recommended for use with brominating tablets.