Plaster Stains

May 16, 2014
1
Nazareth, PA
Hello everyone. I have a SWG pool with a rock wall. I have a brownish colored stain streaming down the plaster across the whole wall. I assume the stain is from the leaching of iron out of the stone. What can I do to get rid of the stain? Thanks for your help.
 
Welcome to tfp!

The test to do on the stain is the vitamin c test ( hold a tablet on the stain and it will lift almost immediately.). If that works you can do the as ascorbic acid treatment. Instructions can be found in the how to or using the search.

Edit changed orbit to ascorbic. Darn autocorrect
 
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