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What Size Pump For Inground Pool

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Calculate The Total Dynamic Head

How To: Size A Pool Pump

Now that we have the flow rate , we need to calculate the TDH in metres to determine the performance of the pump needed to turn over the water. TDH refers to the total equivalent height that fluid will be pumped by taking into consideration any friction losses in the pipe. Essentially dynamic head is the measurement of resistance working against your pool pump as it pulls water from your basin and pushes it back to the pool. Most inground pools will be somewhere around 15 metres TDH. Above ground pools typically fall around 9 metres TDH.

For example:

Head Loss – Pipe = 3.80 + Head Loss – Valves & Fittings = 6.20 = 10 Total Dynamic Head

Now that you know the Total Dynamic Head and the flow rate , you can use this information to find the size of pump you will need to efficiently turn over your pool.

Other Things To Consider

Aside from the volume of your pool water, there will be other concerns to worry about like heavy usage, environmental factors like leaves that may contaminate your pool, and other small things that may contribute to your pool water needing to get circulated more often. This is why we always recommend the Water TechniX Pump Dual ECO Variable speed pool pumps. ECO pumps allow you to let the pump speed to energy saver to keep your pool clean during minimal use, and set it to full/regular mode in times when your pool water needs more circulation. A win-win situation. Not only will you get your pool water circulated at all times, but youre saving money on electricity costs as well.

Various Pool Equipment And Electricity Usage #

In case you are struggling to identify the electrical needs for your inground pool, see the below list. We outline the most common pool equipment and their estimated electric requirements.

The majority of pool pumps function with 240 voltage and ten electric amperes.

If your pool has a saltwater chlorinator, not that it requires 240 Voltage and approximately 6 amperes to function.

Pool heaters often need 240 voltage and 50 amperes.

Pool lighting requires 12 voltage and 3.5 watts to function. Lights are small water features thus, they dont have a lot of electrical needs.

On the other hand, hot tubs need a lot of electricity. Thus they require 50 amperes and 240 voltage for function.

So, typically, the size of the electrical breaker youll incorporate depends on the type of pool equipment. Pool heaters and hot tubs have more electric needs. It is always good to employ a dependable pool electrician to evaluate your electric needs. Also, note that the figures mentioned above are just estimates. Confirm the exact voltage and amperes from your pool contractor or manufacturer

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How Much Are Inground Pool Pumps

4.6/5from $150

In this regard, what size pump do I need for my inground pool?

Step 1: Determine the MINIMUM FLOW RATE.

Pool Size
10 Hours 40 GPM

Similarly, how much does it cost per month to run a pool pump? The average monthly costs for a 1 HP pump running 8 hours per day in Florida is approximately $30*. Switching to a 2-speed pool pump motor will save approximately $7 per month and switching to a variable speed motor can save approximately $21 per month.

Then, how long do pool pumps usually last?

8 to 12 years

What size pump do I need for a 15000 gallon pool?

A 15,000gallon pool needs about 20 GPM output if we want to run it 24 hours per day.

Pooline Inground 15 Hp High

What Size Pump Should I Get for My Pool?

The Pooline Inground 1.5 HP Pool Pump possesses features that are usually found in expensive pumps. But, this equipment cost less than others. This pool pump makes use of copper windings for better performance and durability while other brands use aluminum winding to reduce their costing.

This high-performance pool pump also features a considerable start capacitor to boost the starting torque and helps the motor turn over and increase its speed. Pooline Inground pump operates quietly, self-priming, and efficiently. It is known for its durability because of its corrosion-proof polymer structure. You are assured that you will be using this pump for many years.

Its large comfortable handle and transparent cover enable you to check the filter easily. The strainer is a large, easy-to-clean container. Pooline Pool Pump has suction and discharge ports that are threaded for one and a half inches fittings and offers the best water flow to make sure your pool water is clean and clear.

When it comes to maintenance, the pump has an easy-to-drain plug. Also, included in the package is the six-foot three-prong power cord that meets the ETL standards.

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How To Choose The Right Pool Pump

Before we get started, Ill give you a chance to get out of reading this article The simple way to address this topic is to purchase one of the new variable speed pumps we have available. These pumps will work on any pool, regardless of plumbing size, filter type/size or feet of head, etc. All terms we would rather not concern ourselves with! And most utility companies offer a rebate if you install one. The most popular variable speed pump on the market that will work on almost every residential pool in the industry is the Intelliflo by Pentair.
  • Not all pumps are the same and not all horse powerratings mean the same thing. For example, a 2HP pump from 15 years ago is notnecessarily as efficient or has the water flow of a 2HP pump manufacturedtoday. Additionally, all 2HP pumps made today are not the same. There arevariations that alter the performance drastically. Dont be alarmed, all youneed to know is that even though the horse power might be the same, theperformance is often much different and you might not be comparing apples toapples.
  • STEP1STEP2minimum

    For example: 24,000 gallons / 8hours = 50 gallons per minute ). 50 GPM is the minimum flow you need fromyour pool pump.

    160 GMP

    For example: If you have two 1.5suction lines then your maximum flow ratewill be 88 GPM .

    DE Filter


    Size Really Does Matter

    As with all pool heaters, if you go big, youre golden.

    A smaller pool heater pump size wont necessarily be detrimental, but youll have to run it longer and may have problems keeping the pool warm.

    Using the chart or calculation method above, you can figure out the minimum heat pump size your pool requires, and if you want, you can go bigger for faster heat times.

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    How Long Does A Pool Filter Last

    Typically, cartridge filters need to be replaced every 3 to 5 years. You can also tell your cartridge filter needs to be swapped out if you start having to clean it more often that is, if the pressure gauge increases by 8 PSI much more often than every 6 months, you may need to replace it.Apr 6, 2017


    Save Over $1100 Per Year

    How to Select an Inground Pool Pump
    All Jandy variable-speed pool pumps are ENERGY STAR certified, saving homeowners more than $1,100 per year* over energy consuming single-speed pumps.Estimate how much youll save with our energy efficient pool pumps, visit our Pool Pump Savings Calculator.Find out if you can get government rebates and tax incentives for the purchase of a new ENERGY STAR certified pool pump.

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    Is It Ok To Leave My Pool Pump Running 24

    This is one of the oldest debates among swimming pool professionals such as myself. I am a big fan of running a swimming pool pump 24-hours a day during the swim season.

    You then get continuous filtering and chemical distribution of the pool water. It also does not hurt a pool pump because they are designed to be run for long periods and they are very energy efficient when operating.

    Detractors always point out that pool pumps dont need to be run 24-hours a day to keep pool water clear, the heat buildup in the motor takes away from a pool pumps useful life, and a pool owner will waste electricity and pay more for their energy bill.

    Perhaps a better question is if its necessary to run your pump continuously? The answer to this is no. You just have to run your pump long enough to circulate all of the water in your swimming pool 2X a day.

    For example if your pump is rated at 30 gallons per minute and you have a 10,000-gallon swimming pool, it takes 5 ½ hours to circulate all of the water in your pool once. So, you will need to run your pump for at least 11 hours a day.

    Look At The Pool Pump Ratings To Find The Right Pump

    Once you have decided to buy a new pump, take some time to research your options..

    Don’t just assume that you need the same horsepower pump as you now have.

    The sample pump chart on the right shows the pump curves for different sized pumps.

    Suppose your system has 60 feet of head and you want a pump that will deliver 50 gallons per minute.

    We have added a yellow line denoting 60 ft of head, and a blue line denoting 50 GPM. Find where the two lines cross and you will see the pump that will deliver the desired rate of flow.

    From this chart, you can see that a 1 horsepower pump will give you 52 GPM flow on a system with 64 feet of head.

    We have tried to give you the flow information on each pump so that once you come up with a rate of flow, you can come up with the proper pump, the first time.

    Note: Figuring out feet of head is difficult. Typically a in-ground pool will have 50-60 feet of head pressure and an above ground pool will be somewhere around 30 feet of head. These are only approximations.

    What about ‘FEET OF HEAD’ ? What does that mean?

    The total resistance to flow is measured in “feet of head”. As you can tell from looking at the pump charts, the greater the resistance to flow , the lower the flow rate. The greater the resistance to flow, the more powerful the pump needs to be to overcome it.

    The resistance is measured in “feet of head”. The best way is to approximate the resistance is as follows:

    Start shopping for your new pool pump.

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    The Pump Fails To Pull Water

    When water isnt being pulled in to the pump, it cant reach the filter and pass through the system properly. The first thing to look for is a clog in the system.

    First, check the skimmer and the pump baskets to make sure theyre not clogged. Next, check the impeller for debris impeding its movement. Open up the pump and clear away any debris.

    Another potential cause can be an air leak in the suction line. Since air has less mass than water, the pump will suck in air instead of water. Check the lines for leaks and patch up any you find.

    How Much Water Does Your Pool Hold

    Pentair IntelliFlo VS and IntelliFlo VS+SVRS Inground Pool Pump

    The first step in determining the proper size pump for your pool is to calculate how much water it holds. The reason for this is that your pool pump should be able to turn over the water in about 8 hours. In other words, all the water in your pool should run through your pump in that time span. And that should happen once a day.

    To determine how much water your pool holds, start by looking at the paperwork that came with your pool. If you cant find the number of gallons it holds, dont worry. With a little simple math, you can figure it out on your own.

    Just follow these formulas, depending on your pools shape, or use our pool volume calculator:

    For a rectangular pool: Length X Width X Average Depth X 7.48 = Total Pool Gallons

    For a round pool: 3.14 x radius squared x average depth x 7.48

    For an oval pool: 3.14 x ½ Length X ½ Width X Average Depth X 7.48 = Total Pool Gallons

    To determine the average depth in your pool, which you will need for the above formulas, add the shallowest part of your pool and the deepest part of your pool and then divide the number by two.

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    Add In Total Dynamic Head

    So far weve covered the ideal flow rate your pool needs and the limits of the pipes and filter. There are several other factors we need to take into account that can impede the flow of water.

    Factors such as:

    • distance of the pump from the pool
    • the number of corners or bends in the pipes
    • height difference i.e. a pump may be installed higher or lower than the level of the pool
    • the size of pipes
    • other equipment installed such as heaters and water features

    All of these factors create friction losses, which means the pump will use more energy to make the water flow. In fluid dynamics, this is whats known as Total Dynamic Head.

    Its not easy for the DIYer to calculate the impact of these things without a working knowledge of fluid engineering.

    What should you do then?

    Heres a table showing an average of the total dynamic head for residential pools.

    Above-Ground Pool

    If your pool is a fairly standard pool and your pump is not 50 feet away or located well below or above the water level of your pool, use these measurements. Otherwise, you may need a larger pump and a professional to help you choose the right size pump.

    How To Choose The Right Inground Pool Pump

    Choosing the right inground pump is very important. It will help in maintaining how long you need to run the pool pump. When you get the right type of pump, it will be able to filter all your water in the pool. And it will do this within 8 to 12 running hours. Now, lets figure out some of the things you need to know to choose the right inground pool pump?

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    How Often Should You Backwash A Sand Filter

    As a general rule, you should be backwashing your pool about once a week or in conjugation with your scheduled maintenance. Another industry standard is to backwash when your filters pressure gauge reads 8-10 PSI over the starting level or clean pressure.

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    Medium Head Vs High Head Pumps

    Choosing The Correct Size Pump For Your Pool, Factors To Consider

    Medium head pumps are used when resistance in the system is low. An example of this would be a pool that only has an in-line filter , and the equipment is relatively close to the pool with very few turns in the plumbing.

    High head pumps are used when resistance in the system is high. An example of this would be a pool with a water feature, connected hot tub, solar heating, in-floor cleaning system, deck jets, therapy jets, a series of valves or turns in the plumbing, lots of in-line equipment, or an equipment pad thats quite a distance away from the pool.

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    Is It Okay To Run A Pool Pump 24 Hours A Day

    Definitely! A pool pump running 24/7 will use up a lot more electricity, so your utility costs will bump up each month. However, from a filtration perspective, an endlessly running pool pump will keep your pool crystal clear.

    Some believe that one turnover per day is enough when paired with regular pool maintenance. The pump that you need will ultimately be determined by whether you agree or disagree. Increased filtration will undoubtedly decrease pool issues and make pool maintenance a bit easier. On the downside, it will also increase the cost.

    Find The Right Size Filter

    Now that you have found the appropriate pump size for your pool, you will need to find the correct pool filter size to match. See below:

    500 W goes with 20 filter

    750 W can go with 24 filter

    750 and 1100 W can go with 25 and 28 filter

    1100 and 1500 W can go with 28 filter

    1500 and 2000 W can go with 33 filter

    Source: Fiberglass Media Filter Resources> Manual

    Find out more about the detailed calculations here or get in contact with one of our specialists if you need further assistance in your search for the right pool pump for your swimming pool.

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    Are Sand Filters Better For Pools

    Sand Filter Vs. The pool water filters through the sand, which catches debris and small particulates, and sends clean water back into the pool. Sand filters are less expensive initially than their cartridge counterparts, are easy to maintain, and only require filter media changes every 5-7 years .


    Pooline Inground Swimming Pool Pump

    In Ground Pool Pump, 2 Speed, 1

    The Pooline 1 HP Pool Pump provides superior reliability and better performance at an affordable price. This is an efficient pump that you can depend on. One of the best features is its efficiency. This is a powerful self-priming machine, a high-quality motor with quieter air ventilation, heavy-duty, and cooler operation.

    This durable pool pump has a stainless steel motor shaft and a corrosion-free polymer reinforced thermoplastic body for better strength to make it last for years. You dont have to worry about maintenance as it requires low maintenance. It has a clear acrylic twist-lock lid that enables you to see exactly which is collected in the large basket, thus reducing your pool maintenance time and boosting your pool enjoyment.

    This energy-efficient pool has two speeds high and low speed. The low speed is used for daily operation while the high speed is applied when you clean your pool or run the tools and other accessories. You can choose which of the two spend is right for your needs. Also, you can toggle between the two settings. Its corrosion-proof polymer structure will provide many years of reliable performance.

    The equipment complies with the ETL and CSA standards. Its 115-volt pump has a six-foot three-prong power cord. The pump motor has automatic thermal overload protection, which enables the pump to shut off automatically when it senses overheating.

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