Tank Blox can be used in small dams and large water containers to prevent algal growth. One block will treat about 70,000 litres (15,000 gal) of water. If less water is to be treated, break the block proportionately. Each block contains 63gm/kg of copper, present as copper sulphate. The block should take 2-4 weeks to dissolve. Replace when nearly all dissolved. Dams and tanks should still be cleaned regularly to ensure a clean water supply._x000D_
Note: Tank Blox are not recommended for human consumption.
Anyone wanting healthy and productive livestock of any kind will appreciate the importance of providing an adequate supply of clean water. Trough Blox are for use in any concrete or plastic water trough to prevent algal growth. Each block contains 63gm/kg of copper, present as copper sulphate. Use one block in 7,000 litres (1,500 gal) of water. Break up block for smaller troughs. The block should last 2-4 weeks. Replace when block is nearly all dissolved._x000D_
Note: Troughs should still be cleaned regularly to ensure clean water is provided to stock.