Last year I had a liner replaced due to seam failure after 1.5years old. 3 ft long seam separation.
Doughboy said it was due to too high chlorine level.
There was also bleaching around return fitting.
Was using Biogaurd silk sticks, 2 per week as instructed by pool vendor.CYA was around 90 and FC level maintained @ 9ppm
Doughboy says FC should only be 1-3ppm and only did a partial refund.
I dumped the silk stick stuff last year and everything the pool store gave me with the pool purchase.
Been using 12% chlorine-borax and other store items.
Checked my fill water before re filling a few days ago, as usual the TA is 380ppm, city water.
Currently the PH is 7.4 and CYA is 50ppm and TA is 180ppm.
Once I get the FC back to normal levels after season opening shock, I assume my CYA will still be at 50ppm so I will have to maintain a FC level of 6ppm. as per chart.
Am I going to go through the same problems since its over 3ppm since I should be at 6ppm?
I could dump some water and refill but then I will be raising the TA and do the M. acid stuff all over again as last year.