Plaster stains

lafonte98

Well-known member
May 3, 2016
60
Collinsville, IL
#1
I have some stains in the deep end of my plaster bottoms pool. I have taped sandpaper to a brush I use to normally brush the pool which has helped remove stains in the past. Its just kind of a hassle. Does anyone recommend a brush made for this or had something they have tried that worked good?

Thanks,

Greg

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JoyfulNoise

TFP Expert
Platinum Supporter
May 23, 2015
14,509
Tucson, AZ
#2
Before attacking stains, it's best to figure out if they are metal stains, organic stains or calcium scale with embedded dirt. Each type of stain has a different approach to it for removal. Mechanical scrubbing only works if it's from a source that will not return; some types of stains recur in the same places because of more fundamental issues.

Have you tried identifying the stains?
 

lafonte98

Well-known member
May 3, 2016
60
Collinsville, IL
#3
Before attacking stains, it's best to figure out if they are metal stains, organic stains or calcium scale with embedded dirt. Each type of stain has a different approach to it for removal. Mechanical scrubbing only works if it's from a source that will not return; some types of stains recur in the same places because of more fundamental issues.

Have you tried identifying the stains?
They are a light brown/yellowish color and typically show up in the same places. In the deep end where the floor curves up the wall.

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JoyfulNoise

TFP Expert
Platinum Supporter
May 23, 2015
14,509
Tucson, AZ
#4
I would suggest using some Vitamin C in a sock to determine of they are metal stains. If they don't react (lighten) to that, then you can put a trichlor puck on it for a few minutes to see if it's organic/biological.
 

lafonte98

Well-known member
May 3, 2016
60
Collinsville, IL
#5
I would suggest using some Vitamin C in a sock to determine of they are metal stains. If they don't react (lighten) to that, then you can put a trichlor puck on it for a few minutes to see if it's organic/biological.
I assume I can do all of this under water without draining the pool?

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