Zinc Sulphate Is Registered Under Act 36/1947 As An Additive To Dip Tanks To Control Build Up Of Bacteria. *An Aid In The Prevention Of Post Dipping Lameness In Sheep And Goats And In The Control Of Lumpy Wool **Directions For Use On Lumpy Wool: Use 1Kg Zinc Sulphate Per 400L Dip Wash *For Post Dipping Lameness: Use 1Kg Zinc Sulphate Per 1000L Dip Wash.