June 4th update. Ok so here is where I'm at. When I checked FC yesterday afternoon I recorded 18. However, I realized about a half hour after that I did not multiply my result by .5 so FC was actually only 9. So we went from FC=20 to FC=9 in 4 hours. This was the time I went to run errand, pick kids up from camps, etc. it got up to 95 degrees here yesterday so not sure if that's a contributing factor. Of course at FC=9 there was a re-emergence of that dust algae in the corners. I brushed corners and entered more bleach to bring up to FC= 20 again. It kept that value when I tested this morning but still some algae in corners. I assume I just keep brushing and checking? I left the solar cover off all day yesterday because I didn't want the water to get really hot but it seemed it didn't help because the sun burnt off the FC pretty fast. I'm getting discouraged because I'm dumping so much bleach in there and I'm worried the rest of the summer is going to require at least a gal of bleach a day just to keep up with things. Which starts to get pricey. The water looks clearer but I do have some small areas of algae in those corners. I can't even get to the stairs until this weekend and even then, I don't see honestly how we will be able to get them out of the pool and even clean inside them. They are formed plastic. I'm feeling pretty defeated.