Chlorine tablets were few and far to come by however you don’t want that shit. There full of cyanauric acid which your pool does not need . In fact it makes your chlorine way ineffective. Commercial pools are not allowed to use stabilized chlorine. You can create a “salt pool” without using salt. Try using just liquid shock or calcium hypochlorite tabs which is also shock. Buy a bucket of borates google pro team supreme . Get your borate level around 40-50 ppm keep your ph around 7.4 and total alkalinity around 90 ppm and calcium around 250 if plaster 200 if plastic. Tabs with stabilizer are shit bad for you . Ever smell that ammonia stink way too much tabs cyanauric lvl off the chart producing bad chlorine.
