Help! Algae Bricks

oldcrafty(8)March 2, 2014

Not sure if this is the right forum to post this questions, But maybe someone has an answer. Last year I laid a wide path, approximately 4 foot wide, beside my house using antique bricks. Little did I know that in the shaded area the green algae grows rampant and is VERY slick when wet or even damp. I have almost fallen several times. I bought a cheap low powered pressure washer which takes the algae off nicely but it is also damaging my bricks! It's only been about 3 months since I washed it and it desperately needs it again! Is there anything I can do to deter the growth of the algae? Don't have time to pressure it every 3 months and soon my bricks will be really messed up and pitted. Was hoping there would be something I could treat it with to deter the growth of the algae and not kill my surrounding plants and hurt the birds and squirrels that I feed.

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concretenprimroses(4B NH)

I immediately thougt vinegar. Here's a link. Bleach works too apparently but is dangerous for animals.
Good luck. Your path sounds lovely (except the slippery algae!)

Here is a link that might be useful: Removing algae from brick

    Bookmark   March 2, 2014 at 8:55AM
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Those 2 things are what I would have suggested too...

    Bookmark   March 2, 2014 at 10:25AM
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PKponder TX(7b)

Peroxide should work too, but will take a couple of treatments with a vigorous broom scrub. Plain old hydrogen peroxide, nothing special.

    Bookmark   March 2, 2014 at 11:28PM
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