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  1. D

    Pump

    I started using a new cellulose based ingredient instead of DE (environmentally friendlier and less bulky) but it seems like the pressure raises faster and need to backwash more often as much as every other week. Any experience with this?
  2. D

    Holiday

    If the pool will be unattended for two weeks could I temporarily use the pucks for chlorination or would it be better to add an algaecide?
  3. D

    Black algae

    I have a gray plaster pool and noted black spots in two areas of the pool. I have scrubbed bb daily and treated spots with "spot kill". In the morning there are occasional spots that reappear but as soon as the pump runs they disappear. I plan to continue bb daily for a week and then q week. I...