So it has been about a month and everything was going great, I've kept my cl between 2 and 6 for the most part. I have a bit of a problem with the pH constantly drifting up so I average around 8. my CYA is finally at 80 and I now have to balance the CH which is at 100 and the TA which is at 110 (I have a vinyl liner pool). I was planning on doing that this week however, I needed to add more water to my pool a few days ago (we have well water) and after I did this, my water turned a brownish green. The last time this happened was when I first added chlorine to the pool. I think that something in my well water is reacting to the chlorine in the pool. The last time this happened, my pool chemistry was not yet balanced and the water had been stagnant for 5 days due to the pump not running so I shocked it immediately and the water turning a beautiful blue color as the chlorine levels went to normal. Now it is this green color again and the chlorine levels are 4. Does anyone have any suggestions? I have a bit of iron in the water and I'm not sure about copper. it has been over 24 hours now....thanks!