Outdoor Mold & Mildew Stain Remover Spray | Ready To Use | 32 fl. oz. | 2 Pack

Works well and exactly as described. Removed old mildew stains from vinyl siding easily. One bottle arrived with a crack in it and it was leaking but I assume that occurred during packing/shipping and is not the manufacturer's fault. Easy to spray on and covers well. Fairly strong bleach smell but using outside so not a problem.

So happy with this product I used it on my painted deck outside to get the black off from the winter weather. I did use a broom to scrub the deck and then hose it off.

Great product - just crappy spray bottle

I order products assuming that the promises always far exceed the actual results. This product broke that mold ---- no pun intended but it DID break through all of the mold and mildew on the side of my house, then on an exterior blind that has been turning from beige to green over the years. It worked as described and a full afternoon of work removing mildew from an exposed side of the house was reduced to about 20 minutes from start to finish. The ONLY complaint is the same as others -- the sprayer doesn't last as long as the contents of the bottle. Both bottles I got to about 15% remaining and the sprayer stopped working. I am, however, pleased enough that I am ordering another 2 bottles to clean my shed, which took a full day last year and I hope will be another short project this year.

I'm actually impressed with this product. I'd scrubbed my wooden deck with wood cleaner multiple times and it wasn't coming clean. I sprayed the deck with this, waited 15 minutes and and then hosed it down. Clean. I also had heavy mold on my brick patio and this killed it in minutes. I still had to scrape the dead mold off but it came up pretty easily. Plus, it didn't bother my asthma. Great stuff!

So I had power washed my shady, Northern exposure front entrance that consists of a concrete and brick porch and steps, bluestone stair treads, concrete walkway, and paver retaining wall. I had normally faithfully done this every spring and it looked great. However, for the last 4 years, I had skipped this chore and it looked bad. This year, I got out my power washer and things cleaned up beautifully as usual. I had removed all the thick moss and algae, but I still had some green and black spotting that remained. I decided to buy this to treat everything I had just power washed in order to get rid of the remaining stains and hopefully slow down any regrowth. I applied this as instructed. The sprayer is pretty precise with no overspray so it wasn't messy or worrisome. Getting it on my clothes, skin, or shoes was not an issue, and wearing gloves was not necessary. While the sprayer worked well, the wand is way too short. Because of this, you have to work completely hunched over, and I'm a short 5"2". The wand should have more foldable sections, like the wand that comes on RoundUp Weed Killer, so you can stand upright while spraying. Also, because you have to squeeze the trigger the whole time, the application process gets tiresome. My porch floor only measures 6' x 8' but doing a whole large patio or driveway with this applicator would be hugely challenging. As for the 30 second claim, don't waste your time or money. I left it on for 15 to 40 minutes depending on the area. The 40 minute area of my porch floor looked mildly improved. Any shorter duration was completely ineffective. The stairs which were left for 20 minutes and retaining wall left for 15 minutes, showed no improvement. Because it was getting dark out, I couldn't let those areas sit any longer before rinsing them. Given the non-results and the tiresome application process of working hunched over with the too short wand, I would never recommend this for use on any large areas. At over $30.00 a bottle, and no dramatic results, I wouldn't buy this again. At least not for this purpose. The results were very disappointing. It did nothing that my power washer didn't do, and the power washer was much easier to use.

You really need a hose. It works okay to remove mildew but it takes at least 3-5 per application minutes to do so. Likewise, one of the bottle's sprayer nozzle did not work. I have a hand sprayer, so I used that instead. You also need a strong water spray to make it work well, not a hand sprayer. All in all, I wouldn't recommend this again for the price.

This product is great! Our white outdoor furniture cleaned up so easily! No scrubbing. Mildew and pollen gone. Recommend.

Works great on my concrete pavers

A severe windstorm last year caused the siding on the house to be imbedded with dirt and grime that we were unable to remove. We heard about 30 seconds outdoor cleaner and decided to give it a try. After spraying down the siding, and waiting a few minutes before rinsing it off about 90% of the dirt and grime was gone. A but of light scrubbing removed the rest of the dirt and it now looks like new. Great product!!! Next time for a bigger job I will get the large size with the attachable hose.

I've been using this product for years. It works as advertised.

It was difficult to choose whether to purchase the trigger spray, pre-diluted, ready-to-use version, or the larger bottle which needed to be diluted before using. I had been advised to use this cleaner to remove soot and residue from my soffit and exterior wall, after using my natural gas fireplace all winter. After two separate tries made by a professional cleaning person, 30 Seconds Outdoor Cleaner did not erase or dissolve the soot and marks completely from my wood siding, or the metal soffit and gutter above. There is some improvement, but not the complete cleanup I was expecting to get from the effort put into the job, or the extensive list of surfaces for which it was suggested. On top of my disappointment with the result, there was the expense of purchasing the product; consequently, I cannot recommend this cleaner with any degree of certainty of its success, or value for money spent.