How many gallons in a pool this size? 15'wx36'L by 3 1/2' to 6'deep?
Question:
Answers:
Hal R was right about the formula but the average depth is 4.75 feet = (3.5+6)/2
15ft x 36ft x 4.75ft (Average Depth) = cubic ft x 7.48gal/cu ft = 18,981 gal
That is close to the size of mine and it is 11,000 gal.
Assuming there is not a flat area at the deep end of the pool.
Treat the side as a triangle under a rectangle. the area of the triangle will be 1/2 (b * h), the area of the rectangle will be b * h. the triangle is 2.5 feet tall by 36 feet long. 1/2 times 2.5 times 36 = area is 45 square feet. the rectangle is 3.5 feet by 36 feet. area is 126 square feet. the total is 45 plus 126 = 171 square feet. The volume is equal to the area of the side times the width: 171 square feet times 15 feet = 2565 cubic feet. To convert cubic feet to gallons multiply by 7.48 gallons/cubic foot. 2565 cubic feet times 7.48 gallons/cubic foot = 19186.2 gallons approximately.
As you may or may not have noticed in the first area calculation for the triangle I forgot to divide by 2 and therefore ended up with twice the area as should have been for that section of the pool.
I hope this did not cause any problems.
Note to attorney: you have miscalculated 2565 cu ft times 7.48 gallons per cu ft.
To answer this, you need to know the conversion from cubic feet to gallons. Let's do the cubic feet, first...
15 * 36 * .5 = 270 cubic feet (.5 feet because it could rise 6 inches).
I Googled "gallons per cubic foot" (without the quotes) and got 7.481
So, it is just a a multiplication of 7.481 * 270 = 2020 gallons.
Ron.
Go to www.backyardcitypools.com/swim... It takes into consideration average
pool depth, shape of pool, etc, things you don't mention in your post.
simple math by formula volume is first to find the total ares then apply mass vs volume.
15ft x 36ft x 4.375ft (Average Depth) = 2362.5 cubic ft x 7.48gal/cu ft = 17,671.5 gal
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