Here's the deal. Very happy using the BBB and TFP. Got the pool perfect! Then, I had an issue with dull looking water, and per instructions, took it back to shock and cleared up as expected. OCLT zero x2 and CC 0. Here's were I have been maintaining the levels:
Brushing/Robot at least weekly..low bather load. Looked yesterday and water looked a bit "dull" again. Looked today and found what appeared to be some brown, dead algae/dirt several places. Brushed and it stirred up green. Yep, algae.....geez.
Took the action to bring the Ph down to 7.2 and brought FC up to 16. Brushed pool very well.
So what am I doing or not doing. At these levels, I didn't think that I would be seeing algae again, at least so soon. This really has me confused... Thoughts?????