I am trying to get a better handle on my pool volume. The overall shape is kidney and the depth varies from 3 ft. to 9 ft. The slope is not gradual so it is more deep than shallow. I also have steps, built in stools, and some type of shelf built in. I've used the method to measure kidney shaped pools and came out with about 21,500 gallons. Last night I measured my FC and came out with 5 ppm. Plugging the 21,500 gallon figure into pool math I needed to add 159 oz. of 8.25% bleach to bring me up to my target FC of 10 ppm. I added exactly the amount of bleach I needed and waited an hour to re-test. The re-test showed I raised my FC to 9 ppm. Playing around with pool math, I changed the target FC to 9 and kept upping the gallons until I hit the 159 oz. of recommended bleach again. This had me at 26,800 gallons.
Is this a valid method of figuring out my pool volume? Are there too many variables, such as actual bleach strength, to accurately rely on the new 26,800 gallon number?
Is this a valid method of figuring out my pool volume? Are there too many variables, such as actual bleach strength, to accurately rely on the new 26,800 gallon number?