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).
Thatâll be the number of gallons. Formula. Take the depth at each end of the pool, and at each point of the pool where the slope of the bottom changes. Call them D(1) D(2), D(3), D4, etc., for however many time the slope of the bottom changes.