+- Woodnet Forums (https://www.forums.woodnet.net)
+-- Thread: Concrete cleaner? (/showthread.php?tid=7160568)
Concrete cleaner? - Tony (Charleston WV) - 12-05-2015
The concrete pad next to my house has turned blackish in a number of spots-mostly from leaves left on the surface too long. I'd like to clean it off, but its soft enough that a power washer causes pitting, and I don't want to use bleach or any other toxic stuff.
Any suggestions?
TIA,
Tony
Re: Concrete cleaner? - MarkSingleton - 12-05-2015
Straight Simple Green and Baking Soda mixed into a paste, scrubbed with a stiff brush.
Re: Concrete cleaner? - gMike - 12-05-2015
I dumped a bottle of windshield washer fluid on my garage floor a while back and just swept it with a still broom. I was really surprised at how clean it got the concrete. Not sure how it would do with tannin stains but it's cheap enough to give it a quick try. Let us know if you try it.
Re: Concrete cleaner? - Snipe Hunter - 12-05-2015
trisodium phosphate
If that doesn't work, muriatic acid, But read up on it first.
Re: Concrete cleaner? - Woodenfish - 12-05-2015
Wet & Forget
Re: Concrete cleaner? - dlorenz - 12-06-2015
Summer sun takes care of that at our place.