Wet & Forget Mould, Lichen & Algae Remover, Outdoor Surface Cleaner, 5L

Customers find the cleaning agent effective and easy to use with a garden sprayer, removing dirt, stains, and moss without scrubbing. The product makes patios look like new and brings decking back to its original color. While some customers say it works quickly, others note it takes months to show results. The value for money and residue removal receive mixed feedback, with some finding it worth the money while others disagree, and some reporting dark marks on concrete while others see green stains disappear overnight.