I have brownish-yellowish-white streaks on my vinyl liner. I tried the vitamin C test and it successfully lightened the stain. I decided to try out the Jack's Magic Stain ID kit to confirm what I am dealing with. It took over a week to receive the kit (special ordered to Canada) and was pretty excited to get it going. All of my ranges were on target for testing. As the stains aren't easily accessible to the surface, I filled a nylon with the product and placed it over a part of the stain as suggested. The powder didn't really dissolve and ended up trying to pour it over the stains. Overall, it was a bit of a disaster and do not feel any closer to confirming the stain ID. The 1st test - Iron, Cobalt & Spot etching stuff "seemed" to be the best, but I think I basically threw my $30 down the pool drain. I'm feeling a bit frustrated.
Since the Vit C Ascorbic Acid worked --- any suggestions on bypassing another test kit and getting straight to a product? I'm wondering if I should just go for the Iron, Cobalt & Spot Etching Stuff and cross my fingers? I've also read favorable reviews on the StainFree product. I'm trying to get my "pool legs" but don't feel cut out for this stain ID test. Please help a girl out - I will get this one day (I hope).
(Edit: I also tried a trichlor puck - the stain does not seem to be organic)