Wet & Forget Outdoor Cleaner in the ready to use version with included sprayer is ideal for quick application to small surfaces. Apply generously to a dry surface on a cool dry day. That’s it! Just wet it and forget it. Wet & Forget Outdoor eliminates black and green stains caused by moss, mold, mildew and algae without any scrubbing, power washing or using bleach. Wet & Forget Outdoor goes to work with the wind and rain to gently clean the surface over time. Green stains generally clean up within a few weeks. Black stains or heavy stubborn stains may take 6-12 months to fully clean up. Be Patient, Good Things Take Time! Wet & Forget Outdoor properly cleans surfaces, so they can stay clean up to 1 year or longer. Repeat application yearly or when new stains appear to maintain a clean surface. Wet & Forget Outdoor Ready to Use contains no bleach and is safe to use on any type of surface and is great for headstones, planters, statues, windowsills, screens, and outdoor furniture. Wet & Forget Outdoor will cover 60 - 180 square feet depending upon severity of the stain and porosity of the surface. Wet & Forget - the easy way to clean all your outdoor surfaces!