Current test results:
I test FC and CC daily, pH 2-3 times per week. Since opening in Spring, my FC has never dropped below 4. CC has never been over 0.5. My pH is rock solid. I use liquid chlorine as my sanitizer and twice I used dichlor when my CYA needed a boost. I also raise my filter psi by 1 using DE after each backwash.
I was having severe back pains and neglected brushing/vacuuming for about 3 weeks. I did feel the sides of the pool every night when getting my pool sample, and they were/are squeaky, not slimy.
I now have a grayish sediment that collects in little round clumps that can be almost as large as BB's on the bottom of the pool. When I brush, it dusts up and then shoots out of the returns as a fine powder, only to re-clump fairly quickly.
My thoughts are to vacuum to waste on Saturday, but am concerned that this sediment could be something more than fine dirt. Is it possible to have perfectly balanced water and have algae?