Wet and Forget is the ultimate cleaning solution for every kind of surface, from your home driveway, to roofs, conservatories and even sailing boats! It cuts through unwanted Moss, black Mould, Algae and Lichen and takes the hard work out of your clean-up operation. Developed over the course of 35 years in New Zealand, Wet and Forget has become popular in Australia, the USA (sold in over 22,000 stores) and now in the UK, making surfaces spotless all over the world and washing the competition clean away! We are constantly testing and improving Wet and Forget to make sure it is the best cleaning solution available, and is a reliable, safe choice for all of our customers. It is non-caustic, non-acidic and contains no bleach at all. This means you never have to worry about our products causing any damage, as Wet and Forget has a pH level of 8, as close as possible to water, which has a pH level of 7. Tap water in the UK actually varies from PH 6.5 to 9.5.