I am curious as to whether anyone has ever bleached out their vinyl liner with higher than 15ppm chlorine to use for shocking? I have seen where some people are going higher than Ben's recommended 15ppm max for vinly liner pools, and wonder if going higher for at least a few days, would give an extra kick on mustard algae that 15ppm might not do?

I know when I had my new liner installed a few seasons ago, I kept a remnant that wasn't needed, and poured a bit of straight bleach on it to see what it would do, and it didn't bleach it at all. So, I am just wondering with all the dilution of water, if going above 15 for a few days max would be ok or too risky, and worth the risk? If going above 15 ppm is possible, how much higher would you suggest, max?

Thoughts??!

John