Deck Washing? Ask Annie

Dear Annie,
I need to wash my deck and wonder what you suggest. All of the recommendations online are to use bleach. –Len, PA

Dear Len,
I am glad that you asked. I did a little bit of searching and came up with an eco-friendly alternative for you, including an instructional video. The ingredients used on the AskTheBuilder site are oxygen bleach (6 ounces of oxygen bleach to 1 gallon of water). Elsewhere he recommends using my fave ingredient washing soda (he calls it sal soda), and avoiding pressure washing.

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Kamia C.
Kamia T.5 months ago

I tried using oxygen bleach, which is basically dry hydrogen peroxide, and it simply didn't do the same job of getting rid of the mold and mildew as you need to before re-coating, sorry.

Chris R.
Chris R.4 years ago


Chris R.
Chris R.4 years ago


Tourism R.
Past Member 5 years ago

great tips here.

Thank you for sharing!
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Elaine Dixon
Elaine Dixon5 years ago

another safer solution to try

Josette Adubato
Josette Hower7 years ago

Dear Len, I'd love to share with you how to clean not only your deck, but your entire house and not harm the planet doing it! I'm also in PA and in the Coal region, so you have an idea of how the dirt and air is up in the mountains! LOL but seriously, please DO NOT USE BLEACH! You will ruin your deck (no matter how much it's watered down) the sun will bleach it further and you will need to reseal it several times a year after that kind of damage. check my profile and add me as a friend and I'll tell you more. The company I have and shop from is copywrited name and not allowed to use it in advertising, otherwise I'd tell you the names of the products I use. In any case to you and everyone else out there, be careful when using any bleach product! It's caustic and deadly!