A long-life copper based algaecide that prevents algae growth for up to 3 months. This concentrated formula is economical to use and also popular as a Winteriser. It is a long-life copper-based algaecide that prevents algae growth for up to 3 months and can be used as a winteriser. Part of the System Application Instructions: 1. Maintain pH level within the ideal range of 7.2 – 7.6. If not in this range, adjust. 2. Check the chlorine level and ensure it is established within the ideal range 1 – 3mg/l (ppm); 3. Gradually pour the solution into the pool, whilst the pump(s) are turned ‘on’ preferably near the water inlets to aid distribution. 4. After the initial dose this product should last for up to three months before further top ups are required. 5. Where used as a Winterising algaecide carry out normal end of season closure procedures (e.g. removing debris and leaves) and ensure good distribution by circulating water whilst the pump(s) are turned ‘on’ for at least 2 hours. Dose Rates: Water Volumes Litres Gallons: 4,545 (1,000), 11,360 (2,500), 22,700 (5,000), 45,450 (10,000), 68,175 (15,000). Initial or Winteriser Dose: 100ml, 250ml, 500ml, 1ltrs, 1.5ltrs. Top Up (3 months): 50ml, 125ml, 250ml, 500ml, 750ml. Stock note: In an effort to provide the quickest possible delivery for our customers we may ship an alternative premium branded product if stocks are low. These brands will only be Blue Horizons, Deep Blue Pro, Relax or Swim Fresh, all established for a long time in the water treatment industry.