Wet & Forget Mold, Mildew, Moss & Algae Stain Remover Concentrate

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An easy and effective way to clean black and green mold, moss, mildew, and algae from virtually any outdoor surface, Wet & Forget requires no scrubbing, rinsing, or power washing. Just spray it onto outdoor furniture, siding, and concrete, and other surfaces.

  • Simply dilute stain remover with water and spray the surface to be cleaned
  • No scrubbing, rinsing, or power washing required
  • Non-acidic, bleach-free formula works to remove mold, moss, mildew, and algae stains
  • Net weight 0.75 gal
  • Concentrated formula makes 4.5 gallons

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Reviews & Community QA

Wet & Forget Mold, Mildew, Moss & Algae Stain Remover Concentrate is rated 4.1 out of 5 by 62.
Rated 5 out of 5 by from Works great! Sprayed siding on the north side of our house. We have had great results and will continue to use this product.
Date published: 2018-07-09
Rated 5 out of 5 by from Easy and it worked Worked as described on air and online--have tried it so far on house vinyl siding and within two days all traces of mold were gone. Next up: trying it on the flagstone patio but no reason to think it won't work there either. Easy!
Date published: 2018-06-13
Rated 1 out of 5 by from Useless This product is pretty useless, I haven’t seen any results using it in my concrete porch or patio. Don’t waste your money!
Date published: 2018-06-10
Rated 5 out of 5 by from Works Great Sprayed it on the black and green buildup and a week later it is gone. Some places I had to spray twice but once it works, it really makes a difference. Siding looks almost new. WOW!
Date published: 2018-05-12
Rated 5 out of 5 by from Great Product Have used it for two years. My husband was very skeptical about if it would work on mildew in Texas, worked great! Follow directions and it does work.
Date published: 2018-05-01
Rated 5 out of 5 by from Love Wet & Forget I have used this item for about 4 years on my stained deck and brick walls for moss and algae control. You just spray it on and wait a few days for remarkable results. I do prefer the ready to use that comes with a sprayer to this concentrated option.
Date published: 2018-04-24
Rated 5 out of 5 by from Fantastic! Always had a problem with mold and mildew on the back of my home for over 25 years. Applied wet and forget last spring, the siding is still clean one year later. Love this.
Date published: 2018-03-14
Rated 4 out of 5 by from it does work I want immediate gratification which I did not get with this. But they do say it could take a month or so. Well I used it last year and nothing happened so I put the container in the basement and didn't think anymore about it. Well now that the snow has cleared I noticed that the bricks I used it on look brand new again. I'm not sure if I didn't use enough or the temperature was too cold or something when I used it but in the end it did do as it says. I gave it the 4 stars only because I wish it worked faster.
Date published: 2018-03-02
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