Transform murky water into a sparkling spectacle with Blagdon's Water Feature Rapid Clean. This powerful, single-application treatment banishes green water swiftly and effectively from your resin, stone, metal, or concrete water feature. For consistently clear water, simply add 100g of Rapid Clean to every 25 litres of water once a month. No need to stop the water flow - just add and enjoy the results. This cleaner is suitable for use on resin, stone, metal and concrete water features. It offers a fast one shot treatment specially formulated to clear green water in your water features. Keep the water running, and simply add 100g of Rapid Clean per 25 litres of water.