Knowing the Square Footage of a swimming pool is very important when you need to paint it. Length x width x average depth x 7. Using 4 feet in this calculation will result in a volume 33 percent greater than the actual amount of water. In the example, that was 4 feet. Circular Pools The formula:
Square or Rectangular Length x width x depth x 7. The cubic volume can be calculated by including the depth of the pool with the surface area. Kidney or Irregular Shapes There are two methods used to calculate the capacity of irregular shapes. For example, the hot tub depicted in Figure 2 is 4 feet deep, but the water is only filled to about 3 feet. Length times width gives the surface area of the pool. Estimating the amount of Paint your project will require depends on the smoothness of the surface, the number of coats recommended for a particular coating and the total square feet of the area to be painted.
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Pool recommend rounding up on the measurements and we always recommend getting an extra gallon of paint just swimming case. In measuring the capacity of a circular spa, you might need to calculate two or three areas within the hot tub and add them together to arrive at a total volume. For instance, 14 feet radius times square feet radius times 3. First, you can imagine calculating pool calculating hot tub as a combination of smaller, regular shapes. Calculating a pool's area in square feet is the first step in square information including pool gallons, maximum capacity of persons and other pool information about your pool. Following are the basic footage and calculations footage determine swimming areas: In the example, that was 4 feet.
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If most of the pool is only 3 or 4 feet and then a small area drops off suddenly to 10 feet, you will have a different average depth. In such a case, you might want to treat the pool as two parts. Measure the length, width, and average depth of the shallow section, then take the same measurements for the deeper section.
Calculate the volume of the shallow section and add that to the volume you calculate for the deeper section. Make sure to use the actual water depth in your calculations, not the depth of the container. For example, the hot tub depicted in Figure 2 is 4 feet deep, but the water is only filled to about 3 feet.
Using 4 feet in this calculation will result in a volume 33 percent greater than the actual amount of water. This could mean serious errors when adding chemicals for example, which are administered based on the volume of water in question. There might be a time when you want to know the potential volume, if filled to the brim.
Then, of course, you would use the actual depth or average depth measurement. In the example, that was 4 feet. The radius is one-half the diameter, so measure the distance across the broadest part of the circle and divide it in half to arrive at the radius. Squared means multiplied by itself, so multiply the radius by itself. For example, if you measure the radius as 5 feet, multiply 5 feet by 5 feet to arrive at 25 feet. Use the hot tub to calculate the volume of a round container. Let's do the tricky part first.
The diameter of the tub is 10 feet. Half of that is 5 feet. Squared multiplied by itself means 5 feet times 5 feet equals 25 square feet. Knowing this, you can return to the formula:. In measuring the capacity of a circular spa, you might need to calculate two or three areas within the hot tub and add them together to arrive at a total volume. An empty circular hot tub looks like an upside-down wedding cake, because of the seats. Therefore, you might want to treat it as two separate volumes-the volume above the seat line and the volume below.
In the wooden hot tub, where there is actually water above and below the seats, the tub can be measured as if there are no seats because this difference is negligible.
There are two methods used to calculate the capacity of irregular shapes. First, you can imagine the pool or hot tub as a combination of smaller, regular shapes. Measure these various areas and use the calculations described previously for each square or rectangular area and for each circular area.
Add these volumes together to determine the total capacity. The total of measurement A plus measurement B multiplied by 0. The rest of the calculations you are now familiar with. Try this volume calculation:. One of the most important calculation you will use is parts per million ppm.
The amount of solids and liquids in the water is measured in parts per million, as in three parts of chlorine in every one million parts of water, or 3 ppm. However, one gallon of chlorine, for example, poured into one million gallons of water does not equal 1 ppm. Measure the length of the rectangular or square pool. Multiply the length by the width of the pool to find the square footage.
For instance, 15 feet length times 12 feet width equals square feet. Measure a round pool across to find the radius, which is half the diameter. Find the square footage by multiplying the radius times the radius times 3.
For instance, 14 feet radius times 14 feet radius times 3. Calculate the square footage of a L-shaped pool by dividing the pool into two rectangular or square sections. Measure the length and width of both sections and add the square footages using step 1. If one section is byfeet and the other is byfeet the result will be plus square feet equals square feet.
Find the square footage of an oval pool by measuring the width and length at the center.