bebfoo

Can one of you chem gurus explain how the recommended level of borax don't seem to jive with my calculations of ppm: 1000 ppm is defined as: 1 gram per 1 liter of liquid. So 50 ppm = 0.05g per 1 liter 1,000 gallons = 3,785 liters 0.05g/1L = X/3785L so X = 189g, or 6.67 oz of borax per 1,000 gallons to get to 50ppm of borates But everything here, and the pool calculator shows that it requires 59 oz per 1,000 gallons. Is this due to the difference due to molecular weights of the remaining borates after they are converted by the acid (HCL) in the pool? Or I am making a mistake in my calculations? I got a bit freaked out when I thought I may have just dumped 10X too much borax into my pool. I am still waiting on borate test strips, so I know I should have waited and tested before adding the entire amount recommended by the calculator. I know just enough about chemistry to be dangerous.