We filled up our Intex pool (6500 gallons 18x48) with well water and finally got it cleared up and we were using bleach but I felt like I was adding it every day so we switched to some chlorine tablets in the skimmer. We had added CYA and today it tested at 55, pH is 7.2, Chlorine is ZERO. I don't know what we should do to get our Chlorine up and keep it up. Maybe it is easier to just use bleach...I'm so confused. Can someone help me figure this out? Thx.