Question 760319
Part a)
convert the diameter and depth of the pool to inches
diameter = 18.6 * 12 = 223.2 inches and radius is 1/2 of this = 111.6 inches
depth = 4.2 * 12 = 50.4 inches
volume (v) = pi * 111.6^2 * 50.4 = 1.972802 * 10^6 cubic inches
v (in gallons) = 1972802 / 231 =  8540 gallons
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Part b)
t = 8540 / 2500 = 3.4 hours necessary to run filter
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Part c)
n = 8540 / 10000 = .85 lbs of chlorine is necessary