Pool test Here is my Numbers,What next?

[sisie5]

How did you calulate the volume of water

thanks

[CarlD]

Magic!

No, not really. Just some simple geometry. An 18'x33' pool is an oval.

This oval is made up of a rectangle that's 15'x18' and a circle that's 18' in diameter. The circle is cut in half and each half is stuck on the ends of the rectangle.


The area of a rectangle is Length x Width. The area of a circle is PI * R squared, where PI is 3.146 and R is the radius--9' (half the diameter).

So...15'x18'= 270 square feet.
PI* R^2
=3.1416*9*9
=3.1416*81
=255 sq ft (approx).

So the area of the oval is
270 + 255 = 525 sq ft.

The volume of the pool is
area * depth, or
525 * 4
=2100 cubic feet.

Here's the part you might not know: One cubic foot contains 7.48 gallons. So
7.48*2100
=15,708 gallons.

Use 3.5 or 3.75 to get the other volumes.