after reading some of the lost posts last year I took the plunge and poured about 5 bags of water softener ( plain ) salt into our pool. We use bleach.

I never told my wife what I was doing. Two days later she commented. Gee the pool water sure is nice. It did indeed make it feel better and the eye irritation was almost zero. We never had red eye because it was pretty well balanced following the BBB routines here. It just got nicer with the salt in it.

I put 5 bags in a 16 x 32 IG pool. I think I might have put in 1 bag more than I needed. Now you can only just taste the salt. ( idiot ... I got the salt level test kit AFTER pouring in the 5 bags )

Without the old postings, I think I put in about 1/2 of the amount they suggest for a SWG pool.

Hopefully someone else will have a real number for you.