Promise rings meaning is a symbol of commitment and is often seen as a pre-engagement rings. However, it can be given for many different reasons, such as a symbol of chastity, loyalty, monogamy, friendship, or even a promise to oneself to stay clean and sober.
Length times width gives the surface area of the pool. Multiplying that by the average depth gives the volume in cubic feet. Since there are 7.5 gallons in each cubic foot, multiply the cubic feet of the pool by 7.5 to arrive at the volume of the pool (expressed in gallons).
Divide the number of gallons in the pool by 120,000. All pool measurements are in parts per million. One pound of pure chlorine will raise the chlorine concentration of 1 million pounds of water by one part per million.Therefore, adjust the pool in question by the ideal pool of 120,000 gallons, or 1 million pounds of water.ivide the number of gallons in the pool by 120,000. All pool measurements are in parts per million. One pound of pure chlorine will raise the chlorine concentration of 1 million pounds of water by one part per million.