Wet & Forget Outdoor Moss, Mold, Mildew, and Algae Stain Remover Spray, 64 oz
Wet & Forget Outdoor Moss, Mold, Mildew, and Algae Stain Remover Spray, 64 oz
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Wet & Forget

Wet & Forget Outdoor Moss, Mold, Mildew, and Algae Stain Remover Spray, 64 oz

4 stars out of 957 reviews
(4.0)|
957 ratings
Wet & Forget Outdoor Moss, Mold, Mildew, and Algae Stain Remover Spray, 64 ozWet Forget Liquid Outdoor Surface Cleaner Ready to Use Moss Mold Mildew Algae Stain Remover Unscented4 pack Wet Forget Liquid Outdoor Surface Cleaner Ready to Use Moss Mold Mildew Algae Stain Remover Unscented2 pack Wet Forget Liquid Outdoor Surface Cleaner Ready to Use Moss Mold Mildew Algae Stain Remover Unscented
Pack Size:Single

Key item features

  • Effortless Cleaning: This stain remover simplifies outdoor surface cleaning, effectively tackling moss, mold, mildew, and algae stains.
  • Convenient Application: The product features a ready-to-use formula with an integrated trigger sprayer for easy application.
  • Gentle Formula: Its bleach-free and non-acidic composition ensures safe use on a wide range of outdoor surfaces without causing harm.
  • Automatic Action: Simply spray and let the wind and rain naturally clean the surface over time, eliminating the need for scrubbing or rinsing.
  • Versatile Use: Ideal for various outdoor areas including porch steps, fountains, concrete, landscape stones, and fabric patio umbrellas.
  • Long-Lasting Clean: The formula effectively cleans surfaces, helping them stay cleaner for extended periods.
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Current price is $20.6432.3 ¢/fl oz
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Customer ratings & reviews

4 out of 5 stars
stars957 ratings441 reviews
How item rating is calculated
  1. 5 stars63% (599)
  2. 4 stars9% (86)
  3. 3 stars7% (67)
  4. 2 stars5% (47)
  5. 1 star17% (158)

Reviews summary

Pros
  • : Cleans dirty and green surfaces without harming vegetation.
  • : Removes algae, mold, and moss from roof surfaces.
  • : Effective on various types of fences and surfaces.
  • : Offers a reasonable cost for the product.
Neutral
  • : Effective on some surfaces, but struggles with severe cases.
  • : Effective on some surfaces, but inconsistent on others.
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Showing 1-3 of 441 reviews

Oct 12, 2025
Emma
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Surprised that this product works on Crabgrass!

Works great on green algae on my porch. I had some left over so I spritzed a few weeds. To my surprise, it worked surprisingly great on crabgrass! I know this not its intended use, but it works for those pesky weeds in cracks. I don't like using herbicides, so I was pleasantly pleased.

Helpful?11LJBKK6M6AW50819822
Sep 28, 2025
Kayk
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Workout horse. Will buy again!

The spray was easy to use! I cleaned my carport after 18 years! The instructions were easy to understand. It cleaned away dirt, mold %26 algea quite easily. Since it was so ground in in areas of not cleaning for so long, it require some elbow work- outs. Mainly, the spray melted the dirty carport very well. Didn't see a stain.

Helpful?11LJBKK6M6AW50819822
Aug 19, 2025
anonymous
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I like it. I used it years ago and that's why I bought it again. I told my neighbor about it and he got some as well. I smell isn't good but I wear a mask and leave the area . Once it dry's it's fine. It does take care of the smell of mildew. Within a few days the mold does go away.

Helpful?11LJBKK6M6AW50819822