Asked by: Zaila Hertnagel
home and gardenhome entertaining

How does a variable speed pool pump work?

Last Updated: 1st May, 2020

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With a variable speed pump a pool owner can circulate their water at lower flow rates for a more prolonged period of the day without added energy consumption. As you can see, the energy cost is almost identical; however, the variable speed pump turns the water over more than twice as often.

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Similarly, how long should you run a variable speed pool pump?

(This flow rate is, on average, the middle speed on a variable-speed pump or the lowest speed of a 2-speed pump.) Using this formula, the filter should run for about 7 hours per day for one full circulation.

Secondly, how does variable speed pump work? With a variable speed pump, a pressure sensor is mounted on the outlet of the pump, and this measures the operating pressure of the pump. The VFD controller will be set so that it keeps the outlet pressure of the pump constant, no matter what flow is required out of the pump.

Subsequently, one may also ask, do variable speed pool pumps really save money?

Typically, pool owners who switch to variable-speed pumps recover the cost of the pump in energy savings in less than two years. You could save up to 83 percent in annual energy costs (give or take, depending on where you live and other variables) just by upgrading your pool pump.

Why is a variable speed pool pump better?

With a variable speed pump a pool owner can circulate their water at lower flow rates for a more prolonged period of the day without added energy consumption. This study by the National Renewable Energy Laboratory confirms that variable speed pumps are significantly more energy efficient than single speed pumps.

Related Question Answers

Honoria Imdahl

Professional

How many hours per day should I run my pool pump?

Swimming pool pumps should be run an average 8 hours a day to properly circulate and clean your water. The pump should push your entire pool in gallons in this 8 hour period of time. However, often times swimming pool pump horse power is overrated for their size swimming pool.

Weizhong Volgmann

Professional

Is it OK to run pool pump 24 hours a day?

Chemicals that you add to your pool while the water is circulating don't need to be recirculated; they will stay mixed even if you don't pump the water continually. Although it's generally recommended that all the pool water undergo filtration every 24 hours, the pump does not need to run all the time.

Ahinoam Ojeda

Professional

Is it better to run pool pump at night?

Running the pump at night should only be when you are doing a major chemical treatment such as algae clean-up. Your pool is more vulnerable during the day, plants don't grow at night the way they do during the day–that's true of ALL plants including Algae.

Qingxia Zanter

Explainer

What is the best variable speed pool pump?

  • The Hayward SP2610X15 : Best Pool Pump for a Stable Flow Rate.
  • The Pentair 011018 IntelliFlo : Best Variable Speed Pool Pump for Horsepower.
  • The Hayward SP3400VSP EcoStar : Best Variable Speed Pool Pump for Managing Debris.
  • The Hayward SP2302VSP Max-Flo : Best Variable Speed Pool Pump for Easy Installation.

Eutiquiano Kuppenbender

Explainer

How do you adjust a variable speed pool pump?

Best Setup For Variable Speed Pumps
The idea is to try and run your variable speed pump at the lowest RPMs as possible while still filtering your pool water properly. If you are running your pool pump to filter and turn your water over, we recommend using the middle and lower speed settings.

Lluisa De Vries

Pundit

Is it OK to run pool pump in the rain?

When rain is heavy, pool equipment is at risk for flooding. If flooding water threatens to submerge the pool pump, shut off power to the pool on the main panel and see if you can remove the pool pump safely and store it indoors. If a pool pump is submerged and gets waterlogged, it will need to be replaced.

Danae Govyrin

Pundit

Should I run my pool pump on low or high?

If you're wondering when to run the pump on high vs. low speed, most folks run two-speed pumps on low speed 24/7 and turn the pump to high when vacuuming the pool, running a heater (becuase it needs enough flow), or when leaves are falling and they want to blow them towards the skimmer(s).

Haide Heidekruger

Pundit

How much does a pool make your electric bill go up?

According to the study, at the national average of 11.8 cents per KWh, a pool pump alone can add as much as $300 a year to an electric bill. However, Opower's investigation revealed that its not just the actual pool that accounts for the massive increase in energy consumption of homes with swimming pools.

Changsheng Beltroo

Pundit

Are variable speed pumps worth it?

How much can I save by purchasing a variable speed pump and is it worth it? Now a standard 2.0 HP pool pump costs about $900 installed, and a high efficiency variable speed pool pump costs about $1600 installed, so the cost difference is significant, but so are the savings.

Dimitriy Lorenzana

Pundit

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

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

Kauzar Broegas

Teacher

How big of a pump do I need for my pool?

What you're looking for is a pump that will be able to pump all the water in your pool through the filter in no more than 8-10 hours. This typically looks likes 40 GPM (gallons per minute) for smaller pools and 80 GPM for larger pools.

Digno Estanislau

Teacher

How much does it cost to install a variable speed pool pump?

The labor cost for swimming pool pump installation ranges from $100 to $600 but will significantly increase with additions such as spas, fountains, and waterfalls. Two electricians can install and test a variable speed pump for an average size swimming pool in two hours.

Shishi Domaica

Teacher

Which is better Pentair vs Hayward?

When it comes down to it, both pumps have their own strengths and weaknesses. The Hayward EcoStar has better energy efficiency and the Pentair IntelliFlo has a reputation for longevity with a proven track record. It's a close battle between the two pumps and it really comes down to personal preference.

Abdessalem Ameijide

Teacher

What is the best pool pump brand?

The following are the Top 10 Pool Pumps Available on the Market Today.
  1. Intex Krystal Clear Sand Filter Pump for Above Ground Pools.
  2. Hayward Super Pump.
  3. Pentair IntelliFlo Variable Speed High-Performance Pool Pump.
  4. Hayward PowerFlo Matrix Dual-Speed Above-Ground.
  5. Pentair SuperFlo VS Variable Speed Pool Pump.

Julee Bagdad

Reviewer

How many watts does a 1hp pool pump use?

Durk Quote: "1500 watts is what the pump draws. So, in one hour, it uses 1500 watt-hours, or 1.5 kwh". Where did you get the info that a single speed 1.0 HP electric pool pump motor uses 1,500 watts per hour?

Daylos Grigoras

Reviewer

What is the difference between variable speed drive and variable frequency drive?

A variable frequency drive (VFD) refers to AC drives only and a variable speed drive (VSD) refers to either AC Drives or DC Drives. VFDs vary the speed of an AC motor by varying the frequency to the motor. VSDs referring to DC motors vary the speed by varying the voltage to the motor.

Earl Steege

Reviewer

What is a VFD pump?

A variable-frequency drive (VFD) or adjustable-frequency drive (AFD), variable-voltage/variable-frequency (VVVF) drive, variable speed drive (VSD), AC drive, micro drive or inverter drive is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor

Gaudencio Michalovic

Reviewer

Why VFD is used in pumps?

A variable frequency drive is used for adjusting a flow or pressure to the actual demand. It controls the frequency of the electrical power supplied to a pump or a fan. Significant power savings can be achieved when using a VFD. A variable frequency drive is a specific type of adjustable-speed drive.

Markus Riba

Supporter

Are variable speed pool pumps better?

This means that if the same flow rate is needed, a variable speed motor will operate more efficiently and draw less power. Wait, it gets better! Unlike single-speed motors that can only operate at maximum flow rates, the variable speed motor can slow the water flow and maximize savings.