Recent content by ninaco

  1. N

    Low PH Even After Adding Sodium Carbonate

    Hi - Total newbie here! I'm living in a rental house with in IG pool in the backyard. The pH is low - 6.8. I've added about 9 lbs. of sodium carbonate gradually over the past 36 hours, and the pH hasn't gone up. I can put in more, but I'm wondering if there's something I haven't...