Can someone tell me what this scary junk is?

kimkats

Mod Squad
LifeTime Supporter
Jul 10, 2012
46,744
Tallahassee, FL
OH MY! I have not seen that one before!!! Have you felt it?

I would get a vinyl patch kit just in case then see if you take it off without hurting the liner. I want to see it when you get it off.

Can you rub the dark stains off?
 

kimkats

Mod Squad
LifeTime Supporter
Jul 10, 2012
46,744
Tallahassee, FL
I was going to "argue" with you but when I went back and looked at the wall and see why you say it is a plaster pool. I was looking more at the upper part that is what made me think it was liner...................plaster crack makes a LOT more sense!!! Good call!
 
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JamesW

TFP Expert
Mar 2, 2011
20,763
It's probably rust from rebar or steel wire below the surface. You can scrape it off.

Try a magnet on the area to detect metal below the surface.

You're going to need to cut out the plaster and steel near the surface and patch with some new plaster.
 
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Joeknowskinda

New member
Apr 28, 2020
2
Dallas
OH MY! I have not seen that one before!!! Have you felt it?

I would get a vinyl patch kit just in case then see if you take it off without hurting the liner. I want to see it when you get it off.

Can you rub the dark stains off?
It just becomes dust when you try to touch it. I am pretty sure they are right that it is rust coming from rebar in the plaster
 
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