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BallsEleven
USA Fan
Member since Mar 2019
2693 posts

Any solutions to algae on back patio concrete?
My covered patio faces the north so I have to pressure wash a few times throughout the year and should probably do it more often.

Is there anything I can do to spread out the time in between deep cleanings?

Paint the concrete?


Art Vandelay
LSU Fan
LOUISIANA
Member since Sep 2005
8916 posts

re: Any solutions to algae on back patio concrete?
Paint might make it slippery. There are some mold inhibitor cleaners. Not sure how good they work but might be worth a shot.


jfw3535
Bradley Fan
South of Bunkie
Member since Mar 2008
1119 posts

re: Any solutions to algae on back patio concrete?
Following


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10
East Coast Band
Alabama Fan
Member since Nov 2010
47629 posts

re: Any solutions to algae on back patio concrete?
Turn your house around to face South. Lol.

I guess maybe a bleach solution occasionally?


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50
Shotgun Willie
Member since Apr 2016
2058 posts

re: Any solutions to algae on back patio concrete?


You will have to reapply every now and then, but this stuff works. Had some algae/moss on my roof that faces north and sprayed it on, few and it was gone in few days.


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Drunken Crawfish
USA Fan
Crushing 'skis at Tobin's house
Member since Apr 2017
2969 posts

re: Any solutions to algae on back patio concrete?
30 Seconds Cleaner. It works like a charm


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Lou the Jew from LSU
LSU Fan
Member since Oct 2006
3190 posts

re: Any solutions to algae on back patio concrete?
Pool chlorine granules.
Wet concrete, sprinkle chlorine lightly, use rubber gloves.
Let sit, over night if possible. Keep it moist but no runoff.
Next day hose off with plenty of water.
Might have to do it once a year.


Cracker
Montana Fan
in a box
Member since Nov 2009
12223 posts

re: Any solutions to algae on back patio concrete?
LINKNext time you wash it sprinkle this on it and leave it
This post was edited on 1/13 at 7:29 am


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Coater
LSU Fan
Madison, MS
Member since Jun 2005
31259 posts

re: Any solutions to algae on back patio concrete?
Straight bleach and a hand sprayer

Don’t bother mixing it with any of those other mildew concentrates.


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40
Hotgin
LSU Fan
Kazakhstan
Member since Jan 2014
520 posts

re: Any solutions to algae on back patio concrete?
This.. if it is Algae that means standing water and a little granulated chlorine will keep it at bay


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ScoobyDont
Member since Sep 2016
553 posts

re: Any solutions to algae on back patio concrete?
I have concrete that I needed to pressure wash ever 2 years or so. About 6 months after pressure washing and the concrete was still clean, I took a flower watering can, fill it about 2/3's water and 1/3 clorox. I sprinkle that about every 6 to 9 months and now I never need to pressure wash.


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