Pro-Kleen Ultimate Black Spot Destroyer for Patio, Stone, Block Paving, Indian Sandstone, and more (10 Litres)

This NEW, super concentrated, extreme black spot remover is all you need to eradicate even the most stubborn and unsightly black spots from around your garden - clean your patio, paths, Indian sandstone, block paving, and so much more with ease Helps to lift and clean dirt and grime from areas that haven't been treated for years - you'll have them looking brand new once more with this powerful black spot destroying solution Keep your patios, block paving, sandstone, and more looking bright and clean all year round with Pro-Kleen's Ultimate Black Spot Destroyer One bottle of this powerful black spot remover treats approximately 40 square metres. Wondering how to use this black spot removing formula? It couldn't be easier! Using a pressure sprayer, apply onto the affected area, leave to soak in for 2-4 hours, and then rinse thoroughly.