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  1. H

    Duoclear, mineral cartridge, CYA and FC question.

    Summer is well over. Just thought about this thread. 0 problems all year with mineral bag removed.
  2. H

    Duoclear, mineral cartridge, CYA and FC question.

    Just thought i'd report in half way through the summer. So far no problems. Water is crystal clear and no chemistry problems.
  3. H

    Duoclear, mineral cartridge, CYA and FC question.

    OK, I've done the same. I'll post back later this year on how things work out.
  4. H

    Duoclear, mineral cartridge, CYA and FC question.

    Looking at my cartidge, i'm pretty sure I can remove the yellow cap from it and then it will seal the duoclear up. Did you ever end up trying that?