New to forum. Have a one year old pool and see a lot of blotchy look on bottom of pool and edges where wall meets bottom. Not sure whether this is dirt staining or metal staining. I manage the water myself and have never tested positive for metals. I do have small copper scuppers. I did not know to use a metal sequestration product until now. Not sure the pool builder used in the beginning. Just looking for advice where to start to test stains. I notice a product online called Jack's magic stain test. Was thinking about trying that but wanted to learn more from others. Not really sure a one year old pool should have stains already. Thanks for help.
Wet Edge Northshore Tahoe (Greyish pebble finish)
Total Alkalinity: 100