While the term “bigger is better” might hold true in some industries, perhaps in the pool industry as well, there are details regarding your new in-ground pool that do not abide or benefit from this type of mindset. When optimizing your new in-ground pool, you need to install the perfect pump, not the biggest or the most powerful one, but the perfect pump for your pool needs.
Installing a pump that is too big or too powerful will yield unnecessary financial expenses as it will consume more energy and put unwanted stress on your filters as well. The best solution is also the simplest one – you should look for a pump that is able to filter all of the water in your pool in an eight -hour window. Let’s take a look at how you should go about choosing the perfect pump for your in-ground pool.
Assessment and pool types
The first thing you need to do is to assess the number of gallons of water you need for your pool. Unfortunately, different pool shapes require different formulas. If you have a basic, rectangular pool, you first need to measure the average depth, length, and width. You can easily determine the average depth by adding the depth of the deep and shallow ends and dividing the sum by two. The simple formula is gallons = length x width x average depth x 7.5.
In case you have a round pool, you need to measure the diameter of the pool and its average depth. Following the same depth assessment process, you get a simple formula: gallons = diameter x average depth x 5.9.
For kidney-shaped swimming pools, you need to determine the smallest width, the largest width, and the average depth. Follow the same depth principle and use the following formula: gallons = (longest width + shortest width) x length x average depth x 3.38.
Finally, if you have an oval pool, you need to determine the longest diameter, the shortest diameter, and the average depth. Again, the depth is determined by the aforementioned formula, and brings you to the final formula: gallons = longest diameter x shortest diameter x average depth x 6.7. After you’ve determined the amount of water needed for your pool, you can move onto calculating water intake levels.
Calculating your GPH and GPM
The next step is to calculate how many gallons of water per hour you need in order for your pump to clean all the water in eight hours. All you need to do is divide the sum by eight. That said, most pump specifications are expressed in gallons per minute and you will need to convert your GPH into GPM. Simply divide your GPH sum by sixty and you will accurately determine your GPM value.
Calculating your feet of head
Next, you will need to calculate your average feet of head for your pool pump. You need to measure the length of all the pipes running from your main drains, skimmers and any other suction ports that draw water from your pool. You will need to note the depth of the pipes as well while measuring their length, noting the number of turns and twists along the way, as it will play into your final calculation.
Don’t forget the filter
The size of your filter is important as it will determine the amount of water that will be able to pass through. If the filter is too small for your pump, you will put unnecessary stress on the motor itself, decreasing its lifespan, resulting in a broken down motor and a compromised filtration system. Generally, you want to get a bigger filter than specified, so if you require a fifty GPM, you should get a sixty GPM model in order to ensure seamless water flow from the pump to the pool.
Compare your calculations
Now is the time to compare your calculations to the manufacturer’s specifications and pick out a pump for your pool. As this can be a tricky process, you can always ask for professional guidance when choosing every part and ultimately, your pump. Check out pool supplies by Mr Pool Man to find the solution that fits all the specifications, as well as your pool type.
As you can tell, calculating the values needed for determining the perfect pump for your pool is important not only for optimal pump performance but also in order to avoid unnecessary financial expenses and conserve water and energy as well. Be sure to follow these steps and you will easily make the best cost-effective solution for your pool.