Wet & Forget Outdoor Moss, Mold, Mildew, and Algae Stain Remover Spray, 64 oz
- Brand:
- Wet & Forget
- Model Number:
- 804064
- UPC:
- 879288000046
- EAN:
- 0879288000046
- ASIN:
- B0CXRVDVRP
- Walmart SKU:
- 50819822
Recent downward movement yesterday established $18.00 pricing, now 10.5% below the quarterly average.
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$29.54 | |
|
Lowest Price
|
$24.97 | |
|
Most Recent Price
|
$28.96 |
| Price Type | Price | Date |
|---|---|---|
|
Highest Price
|
$37.00 | |
|
Lowest Price
|
$15.20 | |
|
Most Recent Price
|
$18.00 |
Tracking History: We have tracked Wet & Forget Outdoor Moss, Mold, Mildew, and Algae Stain Remover Spray, 64 oz since 11/25/2023. The most recent price update was on Nov 15, 2026.
Price Range: Over the past 90 days, the price has ranged from $15.20 (lowest on 11/4/2025) to $37.00 (highest on 4/18/2025). The average price during this period is $19.54.
Current Trend: Walmart.com prices have ranged from $16.66 (Oct 8) to $20.64 (Nov 14) over the past 90 days. Current price is 10.5% below the 90-day average of $20.12.
Customer Insights: Rated 4.0/5 from 1501 reviews.
I ordered two items: the Wet %26 Forget pictured here and a canister of Vital Proteins collagen. The Wet %26 Forget container leaked. Although each item was in a separate Walmart bag, they were in the same larger plastic bag, and the Wet %26 Forget fluid reached the canister of powdered collagen. The outside bag contained about a quarter cup of Wet %26 Forget that soaked through the bottom of the cardboard collagen canister, so now I an afraid to use the collagen. (See photo that shows the liquid I poured out of the outside shipping bag.) That means I have to throw out a purchase that cost $31. I have used Walmart to order many items in the past and have been impressed with the ease and speed of the process. My last two orders, however, have been a disaster.
Sprayed like the directions stated. Nothing changed on my cement patio. Three days later applied my second bottle. The algae didn't lighten at all. It seems possible it's not as strong as it was when people left reviews 4 years ago. See before and after photo
After the delivery person was gone, I noticed that there was no connecting hose or tubing from the container to the hand sprayer. I called the number on the back for manufacturing customer care department, and boy she could not get it through her head that it was the hose that was missing and visible. She kept trying to explain how to hook it up! Oopsie yeah scam
This worked great for the moss/mildew gunk on my brick porch. I applied it on a Saturday. It rained a couple of times that next week. The next Saturday I was impatient and applied it again. And again it rained a few days during the next week. Now it has been two weeks since the first application and the mess seems to be gone! My photos show the before and after. It couldn't have been easier to apply. Waiting was the hard part but I didn't have to wait long.
Item is missing small refills bottle didn't come with it
Didn't work, company said that it takes months for it to get some stuff off said that the rain would eventually make it come clean. Really confused because the product claims that all you do is spray it on and it will come clean without rinsing or scrubbing. But the rain will eventually get it clean after a few months. The picture I have is after the second time I applied the product which was done on March 21st. So plain and simple the product don't work. It smelt like Windex to me just very irritated that the company acting the way they did.
It's ok. Not for very dirty concrete. I live in Florida so the recent rainy humid weather caused a lot of mold and mildew on my back patio. I applied a very generous amount of this product and waited a considerable amount of time but it only lifted very little of the dirt and mold. It's not strong enough for heavy duty jobs
This product was sprayed on my green algae boards on my deck and the algae was gone when it dried. I expected to treat the wood deck several times but it was not necessary. Great product!
I'm very impressed. I had green algae slim on the concrete base of my home. I sprayed this solution on my concrete twice (2 day gap in between treatment) and the green mess disappeared. No scrubbing needed.
The supplied sprayer needs to be carefully dislodged from the container, so not to break any of the moving parts. It's a tight fit. There is a light duty tubing connecting the sprayer to the jug's fluid reservoir. Make sure you are gentle with it when dislodging the hand-held spray head. One notes on use: This product activates when exposed to the sun, but need to be applied in the shade. 1) Pick a dry day to apply. When You know there will be several hours of direct sun later in the day. 2) Spray on mold and mildew covered outdoor items on an overcast/shady morning. 3) Let the treated area dry. Then, wait for the sun to appear and do the rest of the work.
Detailed price history for the past 90 days
Walmart.com prices have ranged from $16.66 (Oct 8) to $20.64 (Nov 14) over the past 90 days. Current price is 10.5% below the 90-day average of $20.12.
| Date | Price | Change | % Change |
|---|---|---|---|
| $18.00 | $+0.00 | +0.0% | |
| $18.00 | $-2.64 | -12.8% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+3.41 | +19.8% | |
| $17.23 | $+0.00 | +0.0% | |
| $17.23 | $+0.00 | +0.0% | |
| $17.23 | $+0.00 | +0.0% | |
| $17.23 | $+0.00 | +0.0% | |
| $17.23 | $+0.00 | +0.0% | |
| $17.23 | $+0.57 | +3.4% | |
| $16.66 | $-0.88 | -5.0% | |
| $17.54 | $-3.10 | -15.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
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| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | $+0.00 | +0.0% | |
| $20.64 | — | — |
Third-Party Sellers prices have ranged from $28.96 (Oct 13) to $28.96 (Oct 13) over the past 90 days. Current price is close to the 90-day average of $28.96.
| Date | Price | Change | % Change |
|---|---|---|---|
| $28.96 | $+0.00 | +0.0% | |
| $28.96 | $+0.00 | +0.0% | |
| $28.96 | $+0.00 | +0.0% | |
| $28.96 | $+0.00 | +0.0% | |
| $28.96 | — | — |