cwarrior 14 Report post Posted May 8, 2011 Where do you guys buy your oxalic acid from? I get it from the Chemistry Store- 38lb for $140. Any cheaper places available? Also, what type of sprayer/method do you use to apply the acid? I use a pump up sprayer, but it takes too long for large areas of concrete. Thanks, Mark Share this post Link to post Share on other sites
Pat Norman 18 Report post Posted May 8, 2011 (edited) Are you near a Univar distributor? Google it. Try downstreaming it, works for me add a soap or surfactant for best results. edit oops. Was thinking caustic.....don't add anything to oxalic! Edited May 8, 2011 by Pat Norman Share this post Link to post Share on other sites
A OK Pressure Washing 14 Report post Posted May 8, 2011 Find a local chem supplier, you are paying way to much. Share this post Link to post Share on other sites
