I have in hand now a tricolor tablet and some vitamin C to see what my stains are composed of. I have owned the pool for 2 months now and this forum has been nothing short of amazing. There were some stains to begin with, but have gotten worse recently. I haven't kept my pH as low as I should have and I am in the process of SLAMing at the moment. I have brushed this stains on a daily basis and it has not gotten any better.
1. Do I need to wait until the SLAM is over to do the stain test correctly?
2. Do I put the tricolor tablet in a sock and rub it on the stain? How long do I rub for?
3. Do I put the vitamin C tablet in a sock and rub it on the stain? How long do I rub for?
Am I looking for any color change, texture change, etc.?