I just install an above ground oval pool 18x33. Filled the pool with well water over 2 days. Got the water high enough to run the pump late Sunday night. Added recommended salt and stabilizer and let the pump run 24 hours. Turned on SWG monday night and let run until 6pm Tuesday at 70%. Took water about an hour later in for testing with the following results:
Tot. Chlorine: 2.8
Free Chlorine: 2.8
Tot. Alkalinity: 137
Adj. Total Alk. 116 (not sure what this is and how it difers from TA)
Tot. Hardness: 247
At the store they recommended removing the metals because of the iron, is this necessary?
Also, I am planning to add more salt as the SWG manual recommends 3200.
What is concerning me is the high TA and PH. My drop kit was showing the PH around 7.5. He managed to sell me a container of PH reducer. Active ingredient is sodium bisulfite. Should I go with this? Will this also help in lowering the TA?
In the pool school article it recommends adding borates also, but I believe this will raise the ph and ta correct? so not a good time for this.
I guess my plan is to add another 20lbs of salt or so (about half a bag) and starting to lower the PH. Is this safe to do with the kids swimming?
Any other suggestions?