Wet & Forget Rapid Application, Ready-to-Use Mould, Lichen & Algae Remover, Outdoor Patio Cleaner, Black Spot Remover, Bleach Free, 2LNo Scrubbing Required: Effectively works to removes outdoor mould, mildew, and algae, with no scrubbing, jet washing or rinsing needed. Simply saturate dry surface with solution and wait for product to work its magic; apply on day with no rain forecasted Versatile Application: Perfect for covering large outdoor surfaces, including patios, roofs, driveways, paving, tarmac, decking and more. Whether it's your driveway or solar panels, Wet & Forget has