Update:
Did a thorough systematic vacuum of the entire pool floor this morning, despite not being able to see what I was doing. Pump basket was packed full of pine needles, and filter was mostly plugged, pump flow was down. Did another vacuum this evening, but only got 1/3 basket full of debris, and filter flow wasn't too bad. Despite thinking that I've got the pool floor mostly cleared, I still see no improvement what so ever in clarity or color.
My initial hope of progress feels like it was just wishful thinking following the placebo of running the SWG for the first time.
Something feels off. I've SLAMed before, and almost always knock the color back to blue after 24 hrs or less. It is still green/yellow, and visibility is almost nonexistent at 18". I can see the head of the vacuum, but only just. Kind of like the CYA test, I'm pretty sure that's a vacuum head down there, but only because I know it is there.
I just checked, I purchased my TF-100 in May of 2014. I've refilled the FC test powder and drips several times, but even my last bottle refill is 2 years old, and claims to have expired in 7/17. Otherwise none of my chemicals have expiration dates. I thought I bought a CYA refill, but I've found no record of that. Is it possible my CYA is higher than I'm reading? I know I dosed to 40-50 CYA last year. Unless something consumed my CYA it shouldn't be gone. Is it possible I'm using more drips to clear the FC test, resulting in a false high reading? Is it possible my PH tests are inaccurate?
What are your experiences with old test chemicals? Inaccurate? I noticed the R-0012 has white flakes suspended in the liquid. Most of the tests I'm doing are giving predicable (expected) results. The FC readings seem to match when I was dosing without the SWG.
I just feel like something isn't quite right, I expected this algae to relent already.