Stain removal

[vbertone]

Hello, hope everyone is having a great summer. I have some small stains on some stairs that I believe is some scale but not really sure. What do you guys use for small areas like this? Any Jacks Magic guys out there? Thx in advance

 

[Texas Splash]

Depends on what the stain is. If it's scale, you'll need some elbow grease, or see if you can scrape and collect any of it. Place in a pile on the grass and pour a little acid on it. If it fizzles, it's calcium scale. But try the easy things first. Vitamin C tablet(s) to see if it's iron. A chlorine tab (move occasionally) to see if it's organic. Dry acid in a sock to see if it's copper.

 

[vbertone]

 

[vbertone]

I do know there is nothing to scrape. It’s flat and seems to be in the plaster. That was why I was thinking it was not scale but I have tried the tablet and had no change in color. Will try the dry acid. Thanks

 

[Texas Splash]

I see some brown spots. Kind of looks like iron. Which tablet did you try? Vitamin C tablets or chlorine tab?

 

[vbertone]

I tried the chlorine tabs.

 

[vbertone]

I’m guessing that iron does not show up in any type of testing?

 

[Texas Splash]

Vitamin C tabs will remove iron spots very quickly. Try those,