WSD Trough Blox is a treatment for stock water troughs to control algal growth and to provide a copper supplement to livestock. Type of Preparation: WSD Trough Blox contains 63g/Kg copper in a slowly soluble block for use in stock water troughs. Indications: To control algal growth in plastic and concrete troughs. Milking sheep, dairy cattle & dairy goats: Suitable for use in the water supplies of animals producing milk for human consumption. Dosage: Always refer to the label. One 200g block is sufficient for 7000 litre capacity trough for 30 days. One 2kg block will treat 70,000 litres for 30 days. Advice On Use: WSD Trough Blox are safe to use with most livestock water supplies. Do not use in steel tanks or troughs. Do not overdose water supplies when using this product. WSD Trough Blox should not be used in human drinking water. Do not use in area WSD Trough Blox's are designed for prevention and control of algae rather than killing algae. If a trough has heavy algae growth it is advised to clean the trough first and then use a WSD Trough Blox to control the future algae growth.
