Too much salt?

[chem geek]

IF your pool is 20,000 gallons, every 50 lbs of salt you add should increase the salt level 30 ppm.

I believe this is a typo and should be "300 ppm" since 50 pounds of salt in 20,000 gallons raises the salt level by 300 ppm. So 9 bags each with 50# of salt would result in adding 2700 ppm of salt. Chris' initial salt level from the initial calcium hardness and pH adjustment is probably around 350 ppm so the total salt would be expected to be close to 3050 ppm (the salt test actually measures just the chloride ion level, but reports this as ppm sodium chloride "salt" equivalent).

Richard