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    Pump/filter schedule

    Hello! I have a question about the schedule. What is better, to run the filter for shorter time (6-7 hours) at higher speed, or longer (8-9 hours) at lower speed? I am trying to balance the energy costs with the quality of water. I have a sand filter, Pantair inteliflo vari pump, in-floor...
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    Different Total Alkalinity tests

    I have question about TA results. I finally got my TF-100 and that test shows TA 120, I also have BioGuard test (previous owners left that test behind) which gives TA 70, I have also results from 3 different pool stores (I know what do you think about their tests) but their results (from all 3...
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    Setup the waterfall with Pentair Easy Touch

    My pool has in floor cleaning system and the heads pop up sequentially including these in the spa. When the heads in the spa are working the waterfall is working but only until the heads switched to the pool heads. Is there any way to set it up that the waterfall will be going constantly, it...
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    Phosphates - do I treat?

    Moved from here. I am a new guy in the pool "business" but I am an experienced biologist, more, a microbiologist, and according to my knowledge if you kill algae with... anything (it does not matter how you kill them) you actually release more phosphate (other phosphate source can be bird...
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    shocking the pool

    Hi, I am a new pool owner. I just bought a house with a pool so this pool is well established. I have tested water and pH is 7.9, alkalinity 80 but CYA is 144 and high calcium. I use trichlor tablets (2-3/week, 9000 gal pool). I was told that I should use CYA, Ca2+ free shock chemistry, which...