Model # 800003

Internet #203247152

Wet & Forget 0.5 gal. Moss Mold Mildew and Algae Stain Remover
0879288000039

Wet & Forget

0.5 gal. Moss Mold Mildew and Algae Stain Remover

  • Safe to use on any outdoor surface
  • Non-caustic, non-acidic, contains no bleach
  • Covers 375 to 1125 sq. ft.
$27.32 /each

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Product Overview

Wet and Forget 0.5 Gal. Moss, Mold, Mildew and Algae Stain Remover is the easy, one-step solution to removing outdoor moss, mold, mildew and algae. No scrubbing, rinsing or power washing required. This EPA-registered product is non-caustic, non-acidic and contains no bleach. Wet and Forget is safe to use on all outdoor surfaces. Simply dilute and apply with a pump-up garden sprayer, then sit back and let Mother Nature do the rest. Wet and Forget works gently over time, and is safe around plants and landscaping when used as directed.

  • Removes moss, mold, mildew and algae stains
  • Easy to use, 1-step application
  • Works great as a vinyl siding cleaner, deck cleaner (wood and composite), roof cleaner
  • No scrubbing, rinsing or pressure washing required
  • Gentle, biodegradable cleaning formula
  • Unlimited shelf life
  • Makes 3 Gal.
  • Subject to or will include a recycling fee in the following states: CA, OR
  • Does not ship to California - California residents please click here to purchase

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Customer Questions & Answers

33 Questions53 Answers

Customer Questions & Answers

0.5 gal. Moss Mold Mildew and Algae Stain Remover
0.5 gal. Moss Mold Mildew and Algae Stain Remover

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3 answers

how do you apply this product?

This question is from 0.5 gal. Moss Mold Mildew and Algae Stain Remover
Asked by
lebanon nh
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August 10, 2014
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Answers (3)

Asked by
Humid Virginia
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June 6, 2016
Answer: 
Use a pump sprayer
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Asked by
Fairfax, Va.
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Home Improvement Profile: Other
September 3, 2014
Answer: 
use a hand pump sprayer! I used a bottle sprayer on the end of the hose for the roof, and that worked to get the solution up there, but it runs off as the pitch is very steep!
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August 11, 2014
Answer: 
The product is a concentrate, so you would mix 5 parts water and 1 part Wet & Forget in a garden sprayer (tank sprayer). Apply to a dry surface and saturate very well. Once the product dries, the rain and wind will gently wash away the growth over a period of time.
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3 answers

Can this product be used indoors on wall studs and then covered with sheetrock?

This question is from 0.5 gal. Moss Mold Mildew and Algae Stain Remover
Asked by
Lava Hot Springs, ID 83246
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April 17, 2014
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Asked by
Central Florida
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May 20, 2014
Answer: 
No. But if you check the site they may have an indoor product that might work.
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April 28, 2014
Answer: 
No, Wet & Forget Moss, Mold, Mildew and Algae Stain Remover cannot be applied inside your home. The product is for outdoor surfaces such as roofs, decks, driveways, siding, and patios.
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Asked by
Atlanta, GA
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Home Improvement Profile: Professional
April 18, 2014
Answer: 
Hi DW42212,
I'm Travis from The Home Depot. Thanks for visiting our site.
This Wet & Forget product is labeled for exterior use only. It is not recommended for indoor use.
Read and follow all label instructions.
Thank you for asking,
-Travis
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3 answers

can this be used on stuccko blocks and gutters?

This question is from 0.5 gal. Moss Mold Mildew and Algae Stain Remover
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cape coral florida
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February 27, 2014
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Asked by
Central Florida
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May 20, 2014
Answer: 
Yes! It works great on a very shady area of stucco under my daughters window.
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April 7, 2014
Answer: 
Yes, you can use the Wet & Forget on your stucco blocks and gutters. The Wet & Forget is a gentle product that works with the rain to gently wash away the moss, mold, mildew and algae stains away.
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March 3, 2014
Answer: 
Hello ech1!
Yes, this product will work on your stucco blocks and gutters. :)
Have a great day!
Christine :)
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2 answers

Can you use this to clean mold from tents?

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October 23, 2016
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October 24, 2016
Answer: 
Wet & Forget is safe to use on tents to clean mold stains.
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October 23, 2016
Answer: 
This can be used to clean mold from tents.
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Customer Reviews

0.5 gal. Moss Mold Mildew and Algae Stain Remover is rated 3.5 out of 5 by 29.
Rated 4 out of 5 by from It will take time I used it on my roof with heavy moss growth, it browned out that most quickly, waited two months applied again where it may have not got enough. Some green was coming back. A year later most the dead brown moss is gone. I did have to hand pick some of the big area off by hand. I also used it on sidewalk that had black mold. It cleaned the sidewalk but again one application it took 9 months to be gone of the deep black, it is still gone, been 12 months. It will work just give it time and follow the instructions. I applied it with a two gallon pump sprayer.
Date published: 2016-06-07
Rated 5 out of 5 by from wet & forget only product I have found that keeps algae, mold,etc. at bay for an extend length of time. I resprayed my cutters after about 8 months and they still look clean. I did hand scrub with the first application.
Date published: 2016-07-26
Rated 1 out of 5 by from Dissatisfied It says it won't kill your grass. Well, it washed off onto our new sod. It's brown and crisp I'm so angry . We followed exact instructions
Date published: 2016-09-16
Rated 1 out of 5 by from No change yet Bought this in the hopes it would clean my pavers. Mixed as directed and applied a month ago, so far no change.
Date published: 2016-09-12
Rated 4 out of 5 by from Wet & Foget Review The product worked well for the moss on my house siding.
Date published: 2016-08-09
Rated 5 out of 5 by from Works This product works. I know for sure . I live in Naples Fl.. About as far south as you can go...mold on my tile roof has always been an issue. I applied as per the instructions. I waited for months and could not really tell how well it was working. So I went back up and walked around to look more closely . Yes, it was starting to work. Two months later I notices two rows of tiles on the back side that I had missed... It was so obvious . I reapplied and in 3 months my roof looked like new. Any one that says that it doesn't work is misapplying or doesn't have the patience and wants instant results. No odors or smell
Date published: 2015-06-20
Rated 5 out of 5 by from Wet and Forget I have read other reviews and I am truly amazed. It works beautifully in Central Florida on shady concrete with black mold building up. I have pressure washed every year for 16 years which is a tedious chore, spending hours trying to remove the mold. I used this on alternating sections of the sidewalk to give myself the ability to make a side by side comparison in different degrees of sunlight exposure. There was no reaction when it was applied, there was a very slight odor, but there was a little tint of wet look immediately after the application. One week later there was a visible difference. Each day after that resulted in less mold and discoloration. The sidewalk brightened up after about three weeks. I have now applied the product to the other sections that I skipped. I don't know why other reviews mention chemical reactions. color changes, and odors. I can only assume that there may have been other chemicals already on the sidewalk before trying to use this which resulted in some sort of reaction and maybe is preventing it from working as intended? So far it even removed the serious mold built up around my AC unit. That was real bad. I highly recommend this but make sure this is not being used after you have already attempted to use other cleaners - just a thought. I know I had not cleaned my walkway since last spring so there was nothing to react with this.
Date published: 2014-05-20
Rated 5 out of 5 by from Does the job, am very pleased I applied this in the early spring 1-1/2 years ago on a stone patio and steps in a very humid, lakefront area in WV. Within a couple of months the areas were brighter and cleaner. I sprayed in the fall, and again the following spring and the patio area has never looked nicer. Great product, not as environmentally damaging as bleach, although you do have to be patient for results and remember to reapply occasionally in order to keep things looking good. I also used this on a bluestone patio at our primary residence in PA and have had the same great results.
Date published: 2014-08-19
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