So I found a bunch of 1 inch rust stains in the pool from an errant Bobby pin that’s been getting pushed around for a while before I noticed it. Treated a couple with vitamin c and they went away just fine. Had some others that were more stubborn so i left a tab on top of them for about half an hour. Now they look way worse and i appear to have chewed up my plaster or something. A couple tabs went off on their own and left their own orange stains in other spots. Not entirely sure what happened here, I guess the acid just discolored all the pebble/plaster? What’s the best solution here, should I try the ascorbic acid wash?
Rust stain vitamin C fail
- Thread starter Ourad
- Start date
- Jun 22, 2014
- 52,018
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Typically I would assume iron as well, but I wonder if there was another type of metal in those hairpins? Copper maybe? Do you have any dry acid (pH Down) by chance that you could try in a thin sock or nylon and rubbing on a stain?
It appears per google that at least some pins may be copper coated steel, so maybe it’s copper that oxidized? Which would be bad. I have no dry acid on hand but I could go get some, same principle as the ascorbic acid though right?
- Jul 21, 2013
- 65,150
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Clearing copper stains takes sulfamic acid.
jacksmagic.com
www.troublefreepool.com
www.troublefreepool.com
Stain ID Kit | Jacks Magic
jacksmagic.com
Copper in Pool Water - Further Reading
www.troublefreepool.com
Acid - Further Reading
www.troublefreepool.com
Interestingly all the smudgy dark stains resolved overnight. Rust stains remain and looo about the same. Guess I’ll get that test kit to confirm, thank you.
