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  1. C

    Ascorbic question

    Hello, well winter is here and a good time to do some stain removal. I have ascorbic in the pool and it has cleaned up nicely. Getting ready to rebalance and bring up the chlorine. My question is, can you reccomend a time to clean my DE filter. In the past it has become very discolored by the...
  2. C

    FC 2 CC 17

    Hi, I used Jacks Magic #2 (copper and scale stuff) to remove stains in my 16,000 gal gunite pool. They say use total chlorine readings because the stuff messes with FC readings. I did. After a month of no FC readings and plenty of TC, I became worried and called Jacks help line. I was instructed...