borax in the pool

[chem geek]

Sean,

1 box of 20 Mule Team Borax is 76 ounces weight and increases Borates by about 6.5 ppm in 10,000 gallons. So it takes 7-3/4 boxes to raise the Borates by 50 ppm in 10,000 gallons.

The rate of 1 box per 1,000 gallons would yield 65 ppm which would overshoot your 50 ppm target. Adding 4 boxes to 19,000 gallons would raise the Borates by 13.6 ppm.

Also, one box of 20 Mule Team Borax requires 36.3 fluid ounces of Muriatic Acid (31.45% Hydrochloric Acid) to keep the pH the same.

Richard