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  1. L

    CYA from 180 to 0? How?

    It's possible that I'm misunderstanding something, but I thought the main thing that's been draining water from the pool is evaporation. I get probably ~10 inches of rain in a year and figured that evaporation was what covered for that.
  2. L

    CYA from 180 to 0? How?

    Yes. But I figured that the CYA would stick around regardless since it doesn't evaporate.
  3. L

    CYA from 180 to 0? How?

    It did rain, but I never had to drain water. I'll go forward with that ammonia test before trying to increase the CYA. Thanks!
  4. L

    CYA from 180 to 0? How?

    Thanks for responding! The water temperature on average is probably 10-20 degrees below 80. The date on the CYA reagent is 6/23, so expiring soon but not yet. I already threw out the CYA test in tube -- I can redo the test (I have enough reagent for probably only one more), but the tube was...
  5. L

    CYA from 180 to 0? How?

    Hi everyone, I've got a weird problem here and I'm not sure if I should trust my test results. I inherited a pool a year ago and used a Taylor test kit to get a CYA reading of ~180. Obviously not good, but I put off draining the pool at the time and instead only switched from stabilized to...