Use the hot tub to calculate the volume of a round container. For example, if you measure the radius as 5 feet, multiply 5 feet by 5 feet to arrive at 25 feet. Squared means multiplied by itself, so multiply the radius by itself. 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. The number 3.14, refers to pi, which is a mathematical constant. The formula: 3.14 x radius squared x average depth x 7.5 = volume (in gallons) In the example, that was 4 feet.Ģ5.75 ft x 10 ft x 6 ft x 7.5 = 11,587.5 gallons Then, of course, you would use the actual depth (or average depth) measurement. There might be a time when you want to know the potential volume, if filled to the brim. This could mean serious errors when adding chemicals for example, which are administered based on the volume of water in question. Using 4 feet in this calculation will result in a volume 33 percent greater than the actual amount of water. For example, the hot tub depicted in Figure 2 is 4 feet deep, but the water is only filled to about 3 feet. Make sure to use the actual water depth in your calculations, not the depth of the container. Calculate the volume of the shallow section and add that to the volume you calculate for the deeper section. Measure the length, width, and average depth of the shallow section, then take the same measurements for the deeper section. In such a case, you might want to treat the pool as two parts. 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. If the shallow end is 3 feet and the deep end is 9 feet, and assuming the slope of the pool bottom is gradual and even, then the average depth is 6 feet.Īverage depth = ( Depth at the shallow end + Depth at the deep end ) / 2 Therefore, multiply the number of inches in your measurements by 0.0833 to get the appropriate percentage of one foot.Įxample: 25 ft, 9 in. Measure the length, width, and average depth of the pool, rounding each measurement off to the nearest foot or percentage of one foot. Since there are 7.5 gallons in each cubic foot, multiply the cubic feet of the pool by 7.5 to arrive at the volume of the pool (expressed in gallons). Multiplying that by the average depth gives the volume in cubic feet. Length times width gives the surface area of the pool. Length x width x average depth x 7.5 = volume (in gallons) Variable Depth Pools: Square and Rectangular Guide to Cleaning Pool Filter Cartridges.This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen. YouTube sets this cookie to store the video preferences of the user using embedded YouTube video. YSC cookie is set by Youtube and is used to track the views of embedded videos on Youtube pages. The test_cookie is set by and is used to determine if the user's browser supports cookies.Ī cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface. Twitter sets this cookie to integrate and share features for social media and also store information about how the user uses the website, for tracking and targeting. This cookie is used for advertising, site analytics, and other operations. ![]() Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile.īing sets this cookie to recognize unique web browsers visiting Microsoft sites. The cookie helps in reporting and personalization as well. The ANONCHK cookie, set by Bing, is used to store a user's session ID and also verify the clicks from ads on the Bing search engine. These cookies track visitors across websites and collect information to provide customized ads. ![]() YouTube sets this cookie via embedded youtube-videos and registers anonymous statistical data.Īdvertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Provided by Google Tag Manager to experiment advertisement efficiency of websites using their services. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Analytical cookies are used to understand how visitors interact with the website.
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