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    Black dust coming out of sand filter/salt pool, 25,000 gallon inground, vinyl liner

    Thank you for your suggestions and I will definitely get a different test kit next year. I'm in Kentucky and I normally close the pool the beginning of September. Anyway, I've decided that it's definitely a pump/filter issue. I have a Sand Dollar which has only had 8 months total use and has...
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    Black dust coming out of sand filter/salt pool, 25,000 gallon inground, vinyl liner

    Thank you for your help but I've decided that the filter is not working. The pool water is clear and balanced but I keep getting black dust on the bottom. Normally, I run my equipment 24/7, but for the last 3 evenings I vacuumed then shut everything off for the night. In the mornings the pool...
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    Black dust coming out of sand filter/salt pool, 25,000 gallon inground, vinyl liner

    Took 3 weeks to get crystal clear H20 after pool was opened 7/3; drained almost half of H20. Pool sand was replaced August 2019; ph, alkalinity, FC all ok, stabilizer slightly high, hardness slightly low, no TC measuring. Water crystal clear. No sediment on floor when pump/filter are off but...