First of all, I really want to thank everyone on this board for all your posts and advice. This is my first post, but I have been lurking for many months, learning about BBB. It has been great! I moved into a house with an existing 12K gallon pool. The pool was clear and sparkling, but the CYA levels were through the roof. I did a drain and refill, got my TF100 kit, and am now committed to the BBB method, although my wife now looks strangely at me when I get excited about the price of bleach at Wal-Mart . Thanks to everyone on the forum for all the great advice! I hope to be able to soon share advice on my experiences to help others in my same position.
I had a couple of questions. My TA was originally at 180, and with adding acid/aerating, I have now gotten it down to 100. I have noticed however that I am still having to add about 1/2 gallon of 29% MA every 10 days or so. I will add the MA, get my pH down to about 7.2, and without even aerating with my waterfall, 10 days later it is up to 7.8. Is this just something I need to deal with on a re-fill? I have used about 1 1/2 gallons of MA since the fill. One other detail (not sure how major or minor it is) is that when my pump turns on ever night (I have in floor cleaners), each pop up cleaning head pops up and lets out a few seconds of air bubbles before shooting out just water. I know this means a supply side air leak somewhere but I honestly don't have the time or money right now to get it figured out. Is this something that I can just live with, or could this be causing the rising pH by "aerating" every night for a few minutes at the beginning of every pump cycle. Also, if I plan on running the waterfall for 2-3 days each week, will this always be raising my pH, or does a lower TA cause aeration to have less of an effect on pH?
Thanks everyone for the help!