Okay, watermom. Just made my first purchase on Amazon.....frightening. Estimate is 3-5 days (although there is usually an extra day or 2 since I'm rural). I added 2 Clorox gallons to pool but did not add Borax with it this time. As you probably read...my ph is 8.5 this morning, it's going to be 101 deg today and I'm dying for a swim. I'm having a friend pick me up some muriatic acid today so will have that to add by this evening to bring that ph into the right range. Awwck, the pool is so crystal clear and inviting that I want to just jump in now! Is high ph harmful?