2.5L Black Spot Remover - ready to use formulation which powers through patio black spots, lichen and stains Directions for use: - Read all label instructions before use - The product is ready to use and applied neat through a plastic watering can or sprayable equipment - Always test in a small inconspicuous area before using to ensure it is suitable and desired effect is achieved - Apply directly to the surface to be treated and leave to soak in, product will begin to react as it gets to work - Leave product on surface between 2 - 4 hours to allow time to work - Rinse off the area thoroughly - Repeat as necessary for badly affected areas - Product can be applied to slightly damp surfaces or dry surfaces Safety Warning: - Ensure that the area to be treated is cleared of garden furniture and other items so that they are not in accidental contact with the product - Ensure that all loose dirt and other physical debris is removed first by brushing prior to application - Do not apply to surfaces where they are saturated from recent rainfall - Wash hands after use - Keep pets and other animals away from area until entire operation is completed, and surface is completely dry - Avoid contact with ponds - Rinse all equipment that has been in contact with the product with cold water after use