This is my first post, so I hope I follow correctly the forum's rules.
So, first and foremost
I've tried lowering my pH and TA level last weekend. I had to put twice as much "pH-" product as per directions to achieve 7.2 (product was bought at the pool store and there were no indications about what was the active ingredient nor the concentration).
This weekend, pH is back up at high levels with everything else stable.
I need your help! Thanks in advance!