Yellow Stains

jpwicki

Member
May 20, 2008
9
VC.jpg

Had yellow staining on stairs after opening this season. Wife flipped out, I stayed calm and went back to old reliable TFP and learned about vitamin C, worked like magic!
 

pats300zx

Well-known member
Jul 12, 2011
58
Would this work on some leaching stains from leaves? I have some stains on my stairs when I opened this year. I was also thinking of putting a chlorine puck on the stain.
 

Richard320

TFP Expert
LifeTime Supporter
Jan 6, 2010
23,932
San Dimas, CA (LA County)
Would this work on some leaching stains from leaves? I have some stains on my stairs when I opened this year. I was also thinking of putting a chlorine puck on the stain.
Vitamin C is for metals. Organic stains need chlorine. Setting a puck will likely bleach it, but pucks are acidic and might etch the plaster. A better bet would be just keep your FC at the high end and be patient. Make sure you get plenty of water circulating around the steps, even if that means brushing more. And when you add bleach, add it near the steps and then brush good so they get a good jolt before it mixes.