I have a new in-ground pool. The company filled it with our horrible well water and the result was severe iron/copper staining. After 3 stain treatments (one round Jack's Magic for Iron, One round pool store for copper, and one Jack's magic for copper) the stains are finally gone and we are ready to balance the water. The pool company guy put 3 chlorine tabs into the skimmer today. I tested the water at 10pm.
We have been sweeping the pool and have backwashed and added DE powder 3 times today. The filter was broken down and cleaned today.
We have a water filtration system and a bobby filter, so new water going into pool is clean as possible.
My questions are what should we do to balance the pool?
What do we need to do to prevent the staining from recurring?
pH below 6.8
CYA 0 (I shook the solution for more than 30 seconds but it was clear and I could fill the whole tube and still see the black dot. I watched a video online before test and think I did it right)
Thanks in advance!