So, I have been a member here since 2007, opening my pool in 2008. I have followed the BBB method since day one. I have never had an algae problem in all that time, until now. And I can't seem to get convinced of yes or no that I do or do not have it. There are (or at least were before I vacuumed) yellow and brown "stuff" in spots all around the pool bottom. It wasn't on the walls that I could find. I vacuumed yesterday and swam last night and the floor did not feel slimy at all. In fact, it was "squeeky" clean feeling! When I got up this morning and checked, there was more stuff settled in places on the bottom. I decided it may be time to SLAM it for mustard algae. I should point out that my FC has never been below 5 and my CC has never been more than .5 and mostly 0 since opening in April. Last Sunday my FC was 5 and it had started getting a little cloudy so I decided to boost it a little and then forgot for a couple of days and so today's reading was 14. But, it had gotten a lot more cloudy and started getting worse when my plumbing for the cleaner went haywire. I also need to point out that I have a row of 100 ft white pines next to my property that are not mine that give me plenty of grief with those needles! But, a couple of points that make me think that I do indeed have the algae are, #1 - when I vacuumed this afternoon, the skimmer sock was clean when I finished...if it was pollen, wouldn't it have been a big bunch of muck?? And, #2 - at 3:30 when I added the bleach that the shock called for, my FC was 40. At 7 pm, it had gone down to 35 so I added the 8 c. of bleach to bring it back up to 39. At 9 when I tested again, it was still at 39.
yesterday's test results...
My #'s suggest there is not a problem but the pool says there's something going on! Is there any particular thing I can test that will tell me whether it is indeed MA? And, if it's not, is there something, maybe Polyquat 60, that wil clump this pollen out of the pool and give me sparklypoolitis again??
Thanks so much for any help you can give me!