Gleaming the View 14 Report post Posted November 30, 2007 Anyone know what to use to remove those oak leaf stains out of concrete? Share this post Link to post Share on other sites
0 Jeff 232 Report post Posted November 30, 2007 Anyone know what to use to remove those oak leaf stains out of concrete? Bleach - 12.5 % Strong mix will make it disappear Share this post Link to post Share on other sites
0 Camelot 68 Report post Posted November 30, 2007 Tim - Jeff is right on as usual...a strong mix of 12.5% works REALLY well. I just used some on a driveway that was badly stained by oak leaves and it worked great. Share this post Link to post Share on other sites
0 Neil_Asheville 114 Report post Posted November 30, 2007 A 3% to 5% strength should do ya. If you're feeling real renegade, xjet it straight out of the bucket. Rinse any grass, plants, kids, expensive stuff, etc. Share this post Link to post Share on other sites
0 MMI Enterprises 289 Report post Posted November 30, 2007 Same here...The yearly fall here sees them gone in a few minutes on commercial accounts with the 3-5% Share this post Link to post Share on other sites
0 A and J POWERWASHING 64 Report post Posted December 1, 2007 I agree most of the time 3-6% will get it , sometime like Jeff said you will need a stronger mix 12%, let it dwell for about 10 -15 min Share this post Link to post Share on other sites
0 Beth n Rod 1,279 Report post Posted December 1, 2007 One time we were out cleaning a driveway, and tried bleach. Now bleach works on many things, but it is not always the bullet. Tannin stains can be easily removed with oxalic or citric acid (or a blend thereof). Keep some acid with you, and if the bleach doesn't do it, try your acid. Beth :cup: Share this post Link to post Share on other sites
0 John Orr 206 Report post Posted December 1, 2007 One time we were out cleaning a driveway, and tried bleach. Now bleach works on many things, but it is not always the bullet. Tannin stains can be easily removed with oxalic or citric acid (or a blend thereof). Keep some acid with you, and if the bleach doesn't do it, try your acid. Beth :cup: One problem with using acid is that it tends to brighten concrete, so if used on spots, you'll have bright spots. No problem on newer concrete, but could become an issue on anything else. (Unless, of course, you spray the whole drive.) I have always had great results with downstreaming 12.5%. Give it a few minutes, re-apply if needed, touch-up with stronger if needed. Share this post Link to post Share on other sites
0 James 625 Report post Posted December 1, 2007 I use Tanninator with bleach for stone surfaces and Tanninator with acid for wood. Share this post Link to post Share on other sites
0 Beth n Rod 1,279 Report post Posted December 1, 2007 One problem with using acid is that it tends to brighten concrete, so if used on spots, you'll have bright spots. No problem on newer concrete, but could become an issue on anything else. (Unless, of course, you spray the whole drive.)I have always had great results with downstreaming 12.5%. Give it a few minutes, re-apply if needed, touch-up with stronger if needed. That's a great point, and of course regardless of what you clean with, you can end up with clean vs dirty areas, so evening it out and making sure the whole area looks good should always be the goal. Always give the best results you can for your efforts, and you'll get repeat business. :) Remember you are going for curb appeal, and this is the first area they see when they drive up. Beth :groovy3: Share this post Link to post Share on other sites
0 Gleaming the View 14 Report post Posted December 2, 2007 wow, thanx for all the intel. I really need to step up my game with bleach and the acids but they have always made me nervous for fear of killing plants and grass. sounds like theres going to be no way around it to get the desired result we strive for. Share this post Link to post Share on other sites
Anyone know what to use to remove those oak leaf stains out of concrete?
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