Thank you for your sweet thoughts. We have a petri dish going, so that should tell us. It sure looks like dead grayish. Perhaps, leftover from the last cycle before we changed sand and cleaned the filter. Thanks again Kim! It's been 10 weeks since the pool company first started and I have been slamming here with you folks since early June. Hoping we figure it out, as the filter is off and nothing is showing up again. It dissipates in the water in the petri dish when we stir it, then reappears when it settles.My guess/hope is that it is dead algae. I like the idea of making it go to waste as in out of the pool and filter. Just remember that removing/adding water will mess with your numbers. Keep an eye on your tests.
Now go enjoy your clear pool! Float on a raft with a drink in your hand. Do not worry about vacuuming except for maybe once a day to get out the dead stuff you find.
Kim