Superior Pump 91330 1/3 HP Utility Pump Review: Efficient & Versatile

This low cost high quality utility pump has many, many uses which is why the Superior Pump 91330 has thousands of 4.6 star reviews. This pump is a great buy for the money. In a hurry? See it at Amazon 

Selecting the right pool cover pump is essential for keeping your pool cover dry, but what if you could have a pump that does more than just that? Meet the Superior Pump 91330 Submersible Utility Pump, a versatile workhorse that not only excels at safeguarding your pool cover but can also drain an entire pool or hot tub with ease.

In this review, we dive deep into the Superior 91330 utility pump, exploring its features, capabilities, and why it’s a favorite among homeowners.

Here are some uses for the Superior 91330 sump pump:

  • Emergency water removal from the basement
  • Descale a tankless hot water heater with vinegar. Use 5/8 inch garden hose.
  • Pools and pool covers
  • Hot tubs and spas
  • Window wells
  • Ponds
  • Rain barrel
  • Greenhouse swamp cooler
  • Garden or lawn sprinkler. So long as the sprinkler does not restrict the water flow.
  • Landscaping ponds and waterfalls
  • French drains

Superior Pump 91330 Product Overview

The Superior 91330 utility pump is proudly designed by Superior Pump Co. in Minneapolis, MN. What sets this pump apart is its robust construction, specifically its thermoplastic build. This construction makes it stand out from the competition, ensuring durability and efficient performance.

Superior Pump 91330 2400GPH Thermoplastic Submersible Utility Pump

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  • The pump will remove water down to 1/2 inch of depth. This pump only requires one inch (or more) of water depth to be started.
  • One-Piece Motor Housing: The Superior 91330 boasts a one-piece motor housing, enhancing its structural integrity and reducing potential weak points. This design facilitates better heat dissipation, ultimately contributing to the pump’s longevity and reliability.
  • Double O-Ring Seals: Superior Pump goes the extra mile by providing two double O-ring seals on the motor plate, preventing water from infiltrating the motor housing and keeping protective oil from leaking out. This meticulous sealing safeguards your investment, as it ensures that no unwanted water finds its way into critical areas.
  • High Throughput Pumping: With its 1-1/4″ discharge, the Superior 91330 offers rapid and efficient water removal. Its maximum pumping rate is 40 gallons per hour. Of course, lower pumping values are to be expected depending on how the pump is used.
  • Multi-Purpose Use: Drain yards, pools, spas, basements, window sills and more. The Superior 91330 is not limited to pool covers. It excels at draining pools, partial draining for making repairs, or preparing your pool for winter by reducing the water level. It’s versatile and reliable, saving you time and money.
  • Continuous Run Time: It can run continuously if it has at least 6 inches of water depth to keep the motor cool. One customer said he uses it for 6-8 hours at a time.


  • No On/Off Button: This pump doesn’t have an on/off button, meaning it starts working as soon as you plug it in. While it simplifies operation, it requires monitoring and should not be left unattended during operation. Unplug the pump when the water level reaches 1/2 inch.
  • Minimal Water Needed for Cooling: The pump requires a small amount of water for cooling of its parts when used for short periods of time. For continuous use there must be at least 6 inches of water to keep the motor cool..It should not be left running without any water.
  • Storage During Freezing Weather: It’s recommended to bring the pump indoors when it’s extremely cold to prolong its life. Unlike some other pumps, the Superior 91330 may not withstand very low temperatures when left outside.
Superior Pump 91330 features. Image: Superior Pump

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Optional Float Switch For Automatic Operation

Add the float switch shown below so you don’t have to be watching it to know when to unplug it. Some people use this in a sump pit and need the automatic operation. Using this pump in really dirty water will make the filter screen clog up. A much better pump for a sump pit is the Zoeller M53 sump pump.

Superior Pump 92010 Vertical Float Switch , Black
2,064 Reviews
Superior Pump 92010 Vertical Float Switch , Black
  • Universal design works with many pumps; For use with sump and utility pumps
  • Non-mercury activated switch
  • 10-foot water resistant power cord with piggyback plug, Includes mounting bracket and clamp
  • 120-Volt maximum pump running current 10 Amp, RU, CSA Certified
  • Superior Pump’s Float Switches are Built to Last, engineered with quality components and are 100% factory tested

Ease of Use

Operating the Superior 91330 is straightforward. To remove standing water from a pool cover, attach a garden hose to the discharge, place the pump on the cover where most water has accumulated, and plug it into a grounded 120V AC outlet. The lack of an on/off button means it starts pumping as soon as it’s plugged in.

With a maximum rate of 40 gallons per minute, it swiftly reduces the water level to around a 1/2″ from the surface. When you’re done, unplug the pump, and it’s ready for its next use.

Flow Rate With Different Size Hoses

The flow rate (amount of water pumped per minute or hour) will change depending on the hose size and length being used. For an example: Using a 1-1/4″ diameter hose, which is 25 feet long, will have a flow rate of about 30-35 gallons per minute. However, using a 25 foot long 3/4″ garden hose, the flow rate will drop to about 15-20 gallons per minute.

One customer said he drained his pool cover with 100 feet of garden hose and that the flow rate was about 10 gallons per minute.

Air Lock Release

The air lock release is a little hole near the bottom of the pump. It will spray a little water as the pump operates. Its purpose is to prevent the motor from “air locking” which means the air in the impeller case can be forced out when the pump is placed in water. Without that air lock release hole the pump will not pump any water.

Installation and Operation Manual

Here is the operation and installation manual for the Superior 91330 utility sump pump.


This pump features an intake screen on the bottom, which prevents dirt, sticks, leaves, etc. from jamming the pump. If stuff accumulates, you can remove and clean the screen.

To remove the screen: remove 3 small Phillips screws in the bottom filter screen. The screen will slide out. Remove the stuff stuck to the screen by any method that makes sense to you. Hose it off, use a brush – whatever works.

When you finish using the pump, store it indoors, especially during freezing weather, to extend its lifespan.

For Use In Salt Water or With Vinegar

Be sure to flush the pump out with fresh water after use to prevent damage to the pump.

User Satisfaction

The Superior 91330 has earned high praise from users, thanks to its all-around utility and exceptional construction. Users appreciate its longevity, especially in a market flooded with short-lived products. It’s known for its reliability and multi-use applications.

What Users Are Saying

  • “I would definitely recommend it…”
  • “If you need to drain your pool, don’t rent a pump. Just buy this one…”
  • “I would recommend this product for anyone who needs to pump water at a quick rate…”
  • “This pump performed very well… 5-Star Pump!”
  • “A convenient and powerful pump for general household use…”
  • “Excellent pump, works great outdoors and in the rain…”
  • “I have tried several other utility pumps, but this is the best pump that I have found…”
  • “I would definitely buy this pump again…”


The Superior Pump 91330 Submersible Utility Pump stands out as one of the best utility pumps on the market, thanks to its versatility and robust construction. It offers reliable performance for various water removal tasks, making it an excellent choice for homeowners. While it is not suitable for leaving out during freezing weather, its reliability and price make it a top contender in the utility pump market.

If you’re looking for a utility pump that’s a “jack of all trades,” offering efficient water removal and a great price, the Superior 91330 is a fantastic solution. It’s ideal for those who don’t mind a bit of manual operation to ensure it remains in top condition.

Superior Pump 91330 2400GPH Thermoplastic Submersible Utility Pump with 10-Foot Cord, 1/3 HP
36,258 Reviews
Superior Pump 91330 2400GPH Thermoplastic Submersible Utility Pump with 10-Foot Cord, 1/3 HP
  • 1/3 HP Utility pump moves up to 2,400 gallons per hour; pump will lift water up to 25′ of vertical height
  • Tough thermoplastic construction; 10′ cord length
  • 1-1/4 inch NPT discharge for hight capacity pumping; includes 3/4 inch garden hose adapter
  • Removable suction screen and handles up to 1/8 inch solids
  • Superior Pumps are Built to Last, engineered with quality components and are 100% factory tested

Specifications For the Superior Pump 91330 Utility Pump

ModelSuperior Pump 91330
TypeSubmersible Utility Pump
Horsepower1/3 HP
Voltage115V, 60 Hz
Amperage4.1 Amps running. 19 amps capacitor start works on a 15 amp circuit.
Cord Length10 feet
Max Flow Rate40 gallons per minute using a 1 1/4 inch diameter hose
Flow rate with a 1 1/4 inch hose: Approximate flow rate in GPM5 feet = 33, 10 feet = 28, 15 feet = 20, 20 feet = 12, 25 feet = 2.5
Max Head HeightUp to 25 feet
Maximum Solids Size1/8th inch spherical
Maximum Submersion Depth20 feet
Discharge Size1-1/4 inches (with included adapter)
Suction Diameter1-1/4 inches
ConstructionDurable thermoplastic body and impeller
Motor LubricationOil-lubricated
Built-in Overheat ProtectionYes
Continuous DutyYes, if there is at least 6 inches of water covering the pump or the pump will burn out.
Compatible Hose SizesStandard 3/4″ GHT garden hoses and 1-1/4″ FNPT hoses
Ideal UsesDraining pools, hot tubs, tankless water heaters, flooded areas, and more.
Warranty1 year from date of manufacture
WeightApproximately 10 pounds (4.5 kg)
Dimensions (L x W x H)Overall size is 10 1/4″ x 5 7/8″ x 5 3/8″
User Manual IncludedYes
Minimum Basin Diameter6 inches
Maximum Liquid Temperature120 degrees F
Motor ShaftStainless steel
Shaft SealCarbon/Ceramic/Stainless Steel
OriginDesigned in Minneapolis MN and built in China at a Superior Pump factory.
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Richard Quick author at Best Sump Pumps
Richard Quick
Author at Best Sump Pumps

The first time I helped to install a drain tile and basement sump pump system was 1978.

Since then I have worked for a city water utility where I worked with and maintained pumps.

My rental properties and personal homes all needed sump pumps.

As a modular home dealer/builder, those new homes needed sump pumps.

I put that experience to good use by providing reliable, useful, and practical advice on buying, using, and maintaining sump pumps.

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