Winter Plus (Copper Free Long Life Winter Protection) 4 x 5ltr, 2175Winter Plus - Copper Free This Long Life algaecide - is specifically formulated with additional inhibitors to deal with the decommissioned water throughout Winter. Treatment 5 litres of Winter Plus - Copper Free will treat 56 M3 (12,300 gallons) of swimming pool water. Application At the end of the season adjust the pH of pool water to pH 7.2 - pH 7.6; shockdose the pool to 6 - 8mg/litre chlorine. Clean / brush all surfaces especially where pool water circulation is low. Circulate pool water. After 24hrs add 5lt per 56M3 (12,300 gallons) evenly distributed around the swimming pool with circulation on. Ensure this product is added after water level has been dropped. Storage & Handling Store in a cool dry place, away from other chemicals Always wear suitable gloves and eye protection. Warning This container must not be used or contaminated with other materials.