Before adding this inhibitor, determine the pH. If the untreated brine is acidic or neutral, add caustic soda to raise the pH to 8.0. The soda must be thoroughly dissolved in warm water before adding to the brine. All air traps must be designed out. Do not use air vents as they eventually leak. Do not use any yellow brass components in pumps, fittings or valves.
Red brass is satisfactory.
Substitute 300 or 400 series stainless steel. Copper-nickel heat exchangers are more likely to survive the salt brine environment. Dissimilar metal connections should be avoided, such as cast iron to copper. An electrical insulator such as plastic should be used. If the system is drained, flush thoroughly with clean water at once.