Yesterday afternoon my water tested high pH and low salt in my 35k gallon SWG pool. So, I added a gallon of muriatic acid, which I've done a few times already this season, and 3 40lb bags of pool salt.
I added the acid first, all around the pool. About 15 minutes later, I added the salt by pouring it all along the edges. Some of the salt was in big, hard clumps, so I tossed them in. They stayed in clumps at first, but I knew they'd dissolve overnight.
This morning I go out to find staining on my plaster at the bottom. Did I screw up and add the salt clumps too soon after adding the acid, causing the acid to aggregate around the salt and "sit" on the plaster long enough to stain it? Is there a good way to fix the stain?
Picture of the pool bottom where there is no stain, followed by a picture of one of the stains. More noticeable in person.
I added the acid first, all around the pool. About 15 minutes later, I added the salt by pouring it all along the edges. Some of the salt was in big, hard clumps, so I tossed them in. They stayed in clumps at first, but I knew they'd dissolve overnight.
This morning I go out to find staining on my plaster at the bottom. Did I screw up and add the salt clumps too soon after adding the acid, causing the acid to aggregate around the salt and "sit" on the plaster long enough to stain it? Is there a good way to fix the stain?
Picture of the pool bottom where there is no stain, followed by a picture of one of the stains. More noticeable in person.