Since May 3, I have been attacking the swamp I inherited from a foreclosure last year, religiously following the 'Swamp... Sparkling Oasis' rules. I have even been aided by unseasonably cool temps, but the going has been S-L-O-Wwwww. It took about 3 weeks to see the bottom.
In the past week, I had seen real progress: I could finally see "clearly" to the bottom of the pool (the water wasn't sparkling clean, but I could see the pattern well and - after a brush - quite blue-ly), aside from an area in the middle which remained brown. (We get a LOT of wind, so it could very well be desert sand. When I change the filter, it is often sandy.) I cannot reach the middle with the brush (which I do several times a day), but I would switch between using the skimmer and Kreepy Krawly, centralized in the area. (I could even see the Kreepy Krawly moving around, and the liner would shine blue where it had been.)
Last night, I went to bed thinking that everything looked good, and I could see more improvement. The brown patch had shrunk again. ("Maybe this week!")
With those measurements, I added 2 extra 182oz jugs of bleach, put on the Kreepy Krawly, and let it run for the night. (The filter has been running 24/7, and I even have two cartridges to reduce downtime. I still have to change the cartridge at least twice a day if I use the Kreepy Krawly, every two days when I tried just skimmer, which showed minimal progress.) This morning, before the sun hit the pool, it was cloudy again (the pump had nearly lost flow, which I expected overnight w/ the KK), and the FC was down to 2. TWO?!?! I added 6 large jugs of bleach, and two hours later the FC is ZERO. Using the Taylor 2600 kit, I can't even get extra powder to turn the water pink.
When I originally asked, the consensus was that cleanup would take "a week" (so I budgeted 3)... (Keeping the H2O to shock for a month seems like it would have replaced the original water w/ bleach by now). what, oh what could have happened?!