Swimming Pool Chemistry

I'm a dummy, I use this: swimming pool maintenance guide

I have not had much to do with salt water pools but was intrigued anyway. You will lower the pH and alkalinity with the addition of muriatic acid. I am not sure what range you should maintain the alkalinity but somewhere in the 100 mg/L range, I think. I just Googled a site that suggested 75-125 mg/L for Alkalinity and that you will need to add 21 oz for each 10 mg of alkalinity/10,000 gallons of water. I take it by CA you mean Ca or calcium. If you are adding sodium salts, the Ca level should be zero. I don't think you want the calcium in pool water unless it is meant to protect some plumbing. Calcium would be difficult to add to the pool (add limestone rocks?).

I finally got a pool "expert" to talk to me on the phone. PH first is correct. Next comes CA (cyanuric acid) which needs to be 40-50, and lastly TA (total Alkalinity) which needs to be 80-100.

GA PH first - then again after all other adjustments (which could change the PH again).

I recommend that you post your question on the following web site:

www.troublefreepool.com

They will answer you quickly and they know what they are talking about. They have helped me solve numerous issues with my pool.