30 SECONDS Outdoor Cleaner Concentrate, 1 Gallon Jug - Powerful Cleaning Power!

Tim Spatola: Absolutely love this stuff! Definitely better than simple green and is safe around plant life!

United States on Sep 07, 2023

Bookworm: I cleaned mold / mildew off a white fence and my house. This stuff is incredible. A bit expensive when you are doing large areas but it definitely cleans like advertised.

United States on Aug 19, 2023

おきなわコウジ: 6月の
つゆも過ぎていよいよ夏になってきたので、カビ取りしようとして箱を開けたら容器のふたから薬剤が漏れ出していて床板が穴が開きそうに焼きとられていたのでショックで手が付けられません。どのように対処したらよいか途方に暮れています。

Japan on Jul 21, 2023

Linda G.Linda G.: I used this product as directed, equal part water to solution. The reason for the 4-star review is that scrubbing is required. I did not use a powder hose, just muscle powder, scrub brush, scrub pads and utility scraper. I recommend gloves, face mask and eye protection. It didn’t kill my plants but it did discolor clothing. The other issue with this product is it is best used on a dry surface that must be kept wet with the solution for 5-15 minutes, scrub then hose-down, which then wets nearby area…meaning working in sections over several days. It’s a big chore but it will clean stubborn algae, etc. Good value overall.

United States on Jul 20, 2023

JD: I keep this cleaner on hand for all sorts of cleaning chores. I use it on my gutters and soffits a couple of times a year to remove the grim and dirt that builds up. It also works well for spraying on my patio furniture (not the cushions, just the frames), patio surface, pool cage frame, and even my outdoor rugs to clean them up without having to scrub things down.

It's important to spray water on any plants before and after using the cleaner in areas where it may get on the landscaping. As long as you do this, there is no worries of the cleaner affecting plants.

Hands down the easiest and best general-purpose cleaner for use around the home.

United States on Jul 06, 2023

ニャンわん: 外壁の黒ずんだ土埃汚れが、よく落ちました。塗料に与えるダメージが未知数ですが、とりあえず、きれいになりました。

Japan on Jun 08, 2023

Amazon カスタマー: 苔というよりも壁やタイルの黒カビ除去に効果覿面です。なるべくならば、しばらけ雨が降らないタイミングでの散布がよろしいかと思います。

Japan on Nov 06, 2022

shannon: Worked great for killing and rinsing off organic growth. Super easy. We used an RV brush on some spots just to spread the product and save ourselves some money by stretching it. Otherwise, you use more product to ensure 100% coverage. After a few months though, the green stuff started growing again.

Beware, this stuff has a strong bleach smell. Also, don't wear any clothes you can't afford to bleach the color out of. Also, we used on old vynil siding. As a result, there was some uneven discoloring of our siding right after the wash. Seems to have evened out over time.

As this stuff is not cheap, we refilled the hose sprayer bottle with the gallon bottles. Says not to do that, but we did, and it worked great, and saved money. Also worked great on an old teak table.

United States on Oct 24, 2022

Amazon Customer: Don’t get lured in by the 30 second phrase! The only thing that takes 30 seconds is opening the bottle!
I used it on fairly new outdoor tiles with light contamination! I tried to soak it for longer, but, naturally, it dries off very quickly. I used a scrubber, practically no difference between before and after.
So, our are better off in buying chlorine, it’s cheaper and might work better!

Japan on Sep 09, 2022

🧸: レビューを読んでいたので丈の長い雨ガッパとサングラス、マスク2枚、ゴム手袋をつけて中には汚れても良い服を着て噴霧器を使用しました。
外壁の緑の苔は噴霧した時点で溶け出しました。
黒い汚れはデッキブラシなどでゴシゴシすると元の壁の色に戻りますが、壁一面となると大変だし
塩素系の臭いもキツいです。

ウッドデッキの黒苔は、15分くらいするとふにゃふにゃに浮いて来てそこを必死でブラシで汚れを取ると新品の頃のように完全に汚れが取れました。
しかし、右腕が腱鞘炎になりました。

ウッドデッキは広範囲だし洗剤使用しなくても
結局、ケルヒャーで同じくらい綺麗になりました。
黒苔の外壁はケルヒャーではびくともしなくて汚れはほとんど落ちなかったです。

塗布しただけでは汚れは落ちず浮くだけなので
ブラシを使用しないといけないので労力と
臭いと飛び散った液は必ず変色するので要注意です。

Japan on Jun 07, 2021