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    Low FC but no CC

    Thanks for the reply, for some reason my profile hasn't updated that I now have a plaster in ground pool. I have definitely read the ABC's of pool water chemistry and follow the recommendations exactly, which is why my pool has been perfect. This is the best pool site and I am very greatful...
  2. D

    Low FC but no CC

    Hello everyone. Long time user, first time poster. Random question. I accidently let my pool get down to 2.4 ppm FC. I tested for combined chlorine and got no reaction at all which tells me there is less than .2 ppm CC or more realistically from the test 0. There is no algae, the pool is...