S cubic feet A Math Tutorial For Prospective CPO Students

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A Math Tutorial For Prospective

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BTU

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?Tropical Aquatics Pool Education, Inc. 2012

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Getting Ready For

the CPO? Class

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You will have to know basic things like:

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P

l

a

? Square Foot ¨C A square that is 12 inches wide nand 12 inches long.

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Square Foot is abbreviated (sq.ft.).

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c

? Cubic Foot ¨C A square foot that has a depth

du of 12 inches.

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Cubic Foot is abbreviated (cu.ft.). s

ic of 3.28 feet.

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? Meter ¨C One meter is the equivalent

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u

q

Number of meters x 3.28 = number

of feet

A

l

a

? Yard ¨C One Yard is the equivalent

of 3 feet.

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i

p

Number of yards x 3ro

= number of feet

T

? One cubic foot of water

A contains 7.5 gallons (gal)

Number of Cubic Feet x 7.5 = number of gallons

page i

?Tropical Aquatics Marketing, Inc. 2010

Topics

Area

Depth

Volume

Gallons

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A

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a

User oLoad

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Tr

A

it cs

ua

?Tropical Aquatics Pool Education, Inc. 2012

am

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P

Heater

Sizing

l

a

n

it o Turnover Rate

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u

Ed

Flow Rate

Filter Area

Media Rate

page ii

Area

Knowing how to calculate area is important for determining

amheat loss, sizing pool

r

covers, bather loads in spas, and in some states, bather loads

og in pools.

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a

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Ed

Things to know

Area of a square or rectangle:

Area (A) = Length (L) x Width (W)

The x is a way to indicate the word(s) multiply

or times.

s

c

i

t

The formula is simplified as: A = L xaW

Area of a circle:

Area (A) = ¦Ð x r2

A

page 1

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p

o

Tr

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q

A

?Tropical Aquatics Marketing, Inc. 2010

The ¦Ð is a constant number 3.14.

The r stands for radius which is the distance from the center of the circle to the

outer edge of the circle. The radius is ? of the diameter. am

r

g

r2 means radius squared, or simply r times r.

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The formula is better understood if written as: A = a3.14

l xrxr

Width = 35 feet

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Examples:

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u

d

(1) You have a pool with a length of 60 feet

and a width of 35 feet.

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What is the area?

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Length = 60 feet

The formula is A = L x W qua

L (Length) = 60 ft, W (Width)

l A = 35 ft

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ic

A=LxW

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A = 60 ft x 35 ft Tr

A

A = 2,100 ft2

?Tropical Aquatics Pool Education, Inc. 2012

page 2

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