• +1 (888) 818 POOL
  • swimmingpoolsteve@gmail.com

Running A Pool Pump At 1000 RPM

SwimmingPoolSteve.com is user-supported. In order to keep this resource about pools and spas available for free to all readers I earn commissions for purchases made through links on this page. For more information see the full disclaimer page.

Running a pool pump at 1000 RPM
In this article we are going to examine a Pentair SuperFlo variable speed pool pump operating at 1000 RPM to see both the flow rates as well as the electrical consumption for this pump under these conditions. For this bench test the pump was installed with a 240 Volt electrical supply and 1.5" plumbing was used for both the suction as well as the discharge pipes. It is important to understand that every swimming pool plumbing installation is unique and this means the power consumption and volume of flow that you might experience on your pool will be different from the exact values that you see here. This is one of the main reasons why you should consider buying and installing a flow meter on your plumbing system so that you can monitor your own rate of water flow under various RPM conditions.

It is important to watch the attached video to the end as running your pool pump around the clock at 1000 RPM is not going to be sufficient for most pools. Even if you were to achieve the total flow rate for filtration that you need it is very likely that the rate of flow would be too low for peripheral items like heaters and salt water chlorinators to function. Even if your pool is very basic and does not have peripheral items that require certain flow rates, even the skimmer in your pool will fail to function properly, or at all, without sufficient suction to help create the vortex motion that enables your skimmer to work properly. If your skimmer does not collect debris then it is very likely that you will end up with more organic debris that saturates and ends up on the bottom of the pool. In addition to making more work for you, this serves to increase the rate at which your sanitizer depletes in the water which results in more chlorine being needed, as well as more subsequent chemical corrections. Saving money on electricity running your pool pump is great, but not at the expense of unmanageable or dirty pool water that uses far more chemicals than it should be using.

How much water does a pump move at 1000 RPM? - This is a dynamic question with a lot of variables. Every model of pump is different, and every swimming pool installation is unique. This test looks at a 1.5 horsepower Pentair SuperFlo VS pump on a bench test installation (which means little overall resistance to flow) in which the pump is running on 1.5" plumbing. The instrumentation for this testing shows the flow rate at 1000 RPM to be between 15 to 18 gallons per minute. Going with the conservative estimate of 15 GPM, this would be 900 gallons per hour, or 21,600 gallons based on a 24 hour run schedule.

How much power does a pump use at 1000 RPM? - Again this is a dynamic question that can only be answered effectively with specific examples. In this bench test the Pentair SuperFlo VS pump, with a 240 Volt electrical supply, consumed about 139 Watts, or 0.139 kW when running at 1000 RPM. For every hour of operation the pump will use 0.139 kWh (kilowatt hours) of electricity which you would then multiply by the electrical rate that you pay. The nationwide average of 13 cents per kilowatt hour when applied to this test means this pump costs $0.018 per hour to run like this, and the 24 hour running cost would be just over $0.43 total.

Under fifty cents per day and still able to filter over 20,000 gallons of water sounds like a great thing, and it is, but the question of how to filter pool water properly is more complicated than simply setting your pump to 1000 RPM and letting it run around the clock. The first question you need to answer is whether your pool moves any water at 1000 RPM or not. You will likely not show much, if any, pressure on the filter gauge at this low of an RPM. At best you can feel for flow at the pool returns, or look for flow in the skimmer suction, but without a flow meter you are relegated to some guess work when it comes to flow rates. Supposing you feel, or know, that you have some significant flow (anywhere from 10 to 20 GPM) when you are running your pump at 1000 RPM, this is only part of the total filtration equation.

It is not a good idea to run your pump on 1000 RPM 24 hours per day, but this is actually close to how you get the most out of a variable speed pump in terms of electrical savings. You do want to run your pump for many hours per day, probably most of the day, at 1000 RPM (or a similar low RPM which is able to realize between 10 to 20 GPM) as this will allow you to filter a great deal of water for an amazingly low electrical cost. You however still need to run your pump at higher RPM speeds to help satisfy the flow requirements for any peripheral items you have like in-floor cleaning systems, salt water chlorinators, gas heaters, electric heat pumps etc. as well as having periods of higher flow rates for better movement of the pool water and functioning of your skimmer.

This is why you should not run your pool pump at 1000 RPM only, but incorporating long periods of filtration time at low RPM's is certainly part of an effective (and efficient) filtration schedule. This article also highlights the importance of flow meters and how they help to take the guess work out of flow rates - something that is critically important if you want to get the most return out of your investment in a new variable speed pump. For more videos like this that help teach you, and show you, how pool pumps work and how to get the most out of yours, please be sure to subscribe to my YouTube channel.

Swimming pool flow meters

How much electricity does a pool pump use

How does a variable speed pump save you money

Variable speed pump schedules

Variable speed pool pump reviews

Popular variable speed pump models

Swimming Pool Steve

If you want to continue learning about pools and spas from an industry expert follow swimming pool Steve on Facebook, Twitter and YouTube

Endorsed Brands From Swimming Pool Steve

The following links and products are to affiliates of the Swimming Pool Steve website. These are brands, products and services hand selected by Steve for endorsement. Please note that these endorsements can include monetary compensation, affiliate links and referral fees to Swimming Pool Steve, however there is zero additional cost to you should you use one of these products or services. Income generated from these links helps to keep this pool and spa resource available for everyone. To have your product or service considered for listing here as an endorsed brand email SwimmingPoolSteve@gmail.com.

Amazon Disclosure Statement - As an Amazon Associate I earn from qualifying purchases.


If you need to order swimming pool equipment, parts or chemicals online then you should choose to buy from a specialist that deals exclusively with pool and spa products. InTheSwim.com would be my recommendation to pool owners looking to shop online for pool and spa supplies.

- Swimming Pool Steve

Basecrete flexible bondcoat

I can not stress enough the importance of using a waterproofing solution for concrete swimming pools. When it comes to the technical process of waterproofing concrete pools Basecrete is the most effective product that I know of. I strongly endorse the use of Basecrete products to all concrete pool owners.

- Swimming Pool Steve

LightStream swimming pool financing

Pool installations can be very expensive especially when you start to add optional extras. Building a pool is a once in a lifetime event for most people and it is important to get the pool you want. Swimming pool financing can help you get the pool you want and make sure you have the money you need to do it right the first time.

- Swimming Pool Steve

Pool Supplies Canada

When it comes to ordering pool and spa supplies online in Canada www.PoolSuppliesCanada.ca is by far the best option. They carry everything from chemicals to replacement pumps to entire pool kits, with free shipping options and more "in stock" items than any other Canadian online retailer.

- Swimming Pool Steve