Pool Shock Calculator: How Much Shock Do You Need for a 16x32 Pool?

To properly shock your pool, you should use 2 lbs. of shock for each 10,000 gallons of water, according to the Clorox website. For a 16x32 pool, you will need 16 x 32 = 512 sq. ft. surface area. If we assume that the pool is 4 feet deep, then its approximate volume will be 512 x 4/7.5 = 2720 gallons. Thus you would need about 2720/10000 x 2 = 0.544 lbs of shock or more specifically, 8.7 ounces of shock.