I had a couple green algae outbreaks early in the summer, and I followed the SLAM method to remove the algae. Yet, I've been battling a cloudy pool on and off for the past month or so. My CC was less than 0.5ppm when I checked before I shocked the pool 2 days ago to 18ppm FC (pulling out all the stops, as I'm having a pool party this Saturday). CYA was 30 a little earlier in the summer, but had dropped since we had a ton of rain right after I measured, so I added some stabilizer after I shocked the pool. TA has consistently been 100ppm all summer, and CA is usually around 150ppm (always measures low, so may be lower than that, since I haven't tested it in a while). PH appears to be 7.5-7.6, as measured before I shocked the pool.
I think there have been 3-4 days of brilliant water clarity, and (since the early times of outbreaks of algae) I've maintained FC above 3ppm consistently. I brush the pool after each shock and at least once a week, and I run the vacuum at least every 2 days (though it doesn't always hit all the surfaces). The days when the water was clear, I noticed sediment in the corners of the pool. There's construction of a brand new subdivision going on behind my house, and I attributed the heavy sediment to the construction, but since we've had so much rain, I don't know that that is the actual cause. Any ideas?