What sort of salt do you use?
Sodium chloride also known as rock salt, is the most common deicing salt. Rock salt releases the highest amount of chloride when it dissolves. Chloride can damage concrete and metal. White Rock Salt is used where cleanliness and hygiene are a priority, as it leaves little or no residue. Conforms to BS3247:2011, the British Standard for de-icing salt. Marine salt harvested from sustainable