1st off thanks to everyone on this board. My wife told me I was seeing more of the girl at the pool store than her...and she was right! 1st a little background. Purchase a home with an in-ground pool last winter and opened it about 5 weeks ago. My 1st time owning a pool. I found this board last week and have since purchased a Taylor k-2006 test kit and have adopted the BBB method. I have had a recurring problem with debris in the bottom of the pool. It always reoccurs in the same spots. In the shallow end where there are some slight recesses in the vinyl, along the ridge where the shallow end begins to slope down, and around the main drain. It seems to "grow" mainly when the filter is running. To me it LOOKS like algea although it doesn't feel slimy. It poofs up when brushed and doesn't really stain (other than when it sat for a few days but the stains were removed with only light to moderate brushing). I vacuumed to waste several times but got sick of all the water loss. When I vacuumed normally, afterwards the water coming out of my returns was discolored. I passed the OCLT this morning (went from 3.6 to 3.4). Can passing this test rule out algea and point me to a potential problem with my filter? I've been spending exponentially more time working on my pool than in it!
CYA:70 (the pool store reading was 15! I HAD been trying to work it up)
Thanks in advance! I was overwhelmed with the whole process and was lost until I found this site.