Top 5 Under Sink Sump Pump In 2023: [Tested & Reviewed]

Under sink sump pump drains water from laundry tray sinks, bar sinks, multi-compartment sinks, dishwashers, washing machines, and other basement renovation projects. 

You can install fixtures where gravity drains are unavailable with an under sink sump pump. These devices are intended for gray wastewater applications and are not designed to handle raw sewage or effluents in underground vaults.

Sump pumps installed under sinks are not permitted to be used in hazardous or explosive environments, nor are they allowed to pump chemicals. The systems are delivered entirely constructed and intended to install above ground. These low-cost water removal equipment are ideal for basements or other locations where the main drain is high.

In this article, I will evaluate the top 5 under sink sump pump available on the market, as numerous models are available, and acquiring one is a significant investment.

Comparison Of Best Under Sink Sump Pump






Zoeller 105 Under Sink Sump Pump

9 ft. UL listed 3-wire cord and plug, Non-clogging vortex impeller, Cast iron material


4.6 / 5 

Simer 2925B Under Sink Sump Pump

Corded electric power source, 10901.99 liters per hour (maximum flow rate), Compact contained sump pump


4.5 / 5 

Barnes 112551 Under Sink Sump Pump

50 gallons per minute (maximum flow rate), Stainless steel material, Corded electric power source


4.5 / 5 

Red Lion RL-SPS33 Under Sink Sump Pump

53.33 gallons per minute (maximum flow rate), Corded electric power source, Automatic sump pump


4.4 / 5 

Superior Pump 92072 Under Sink Sump Pump

1/3 HP submersible pump, Thermoplastic material, Vertical float switch


4.5 / 5 

How Should You Choose The Best Under Sink Sump Pump?

There are a few factors to consider when looking for an under sink sump pump for the kitchen or basement. The most important thing is power. 

More extensive water requires larger pumps, especially if installed beneath a basement sink. Another is the size of the drain pipe—most designs of the pump suit drain lines that range from 1/8′′ to 1/2′′ in diameter.

Pumps with higher capacity and additional features are more expensive, so evaluate how the pump will utilize to get the most value for your money. Considering all of these aspects, let’s look at the market’s top under sink sump pumps.

Top 5 Under Sink Sump Pump

The top under sink sump pump for your kitchen, basement, or bar sink is listed below. Make your kitchen sink, bar sink, or basement washroom sink stand out while maintaining the highest level of safety.


Zoeller 105 Under Sink Sump Pump

The Zoeller 105 Sump Pump is my top pick for the best under sink sump pumps. The Zoeller 105 is a 1/3 HP, ideal for basement sinks used occasionally. The pump fits typical 1-1/2′′ NPT discharge pipes and can drain the water from your sink. 

This type is one of my top options for basement sinks since it can elevate water 10′ feet out of the basement, requires no tools to install, and is resistant to weather, rust, and wear.

Zoeller is a leader in producing under sink sump pumps with a wide range of models.

Zoeller under sink sump pumps are built to last and have a comprehensive warranty. Whether you need a basic model or an advanced one with some extra features, Zoeller has the pump.


  • Automatic, float-operated mechanical switch 115V/1 Ph
  • 9 ft. UL listed 3-wire cord and plug
  • Non-clogging vortex impeller
  • Cast iron material
  • Ac/dc power source



  • High-quality Zoeller pump
  • Body made of cast iron
  • Automatic mechanical switch with float operation
  • Integrated pump system
  • Vortex impeller for solids that do not clog
  • More expensive than other brands

Reviews from customers

Chad, a resident of the United States, considered the Zoeller 105 pump an efficient one. He said, “This sump pump is built like a tank, so when I wanted to install a utility tub and a sealed pump to get the washing machine water up to the sewage line, I knew this was the brand I was leaning towards.”

He further added, “The build quality is awesome. It is a powerful pump that can push water very quickly down the line, so I would suggest installing a ball valve just after the check valve to help regulate water flow and not overwhelm nearby p and s traps with air pressure.”

Andrew Oakes loved Zoeller 105 pump. He said, “It is used for the washing machine and a utility sink in my basement. The sump pump only runs for 2 to 3 seconds to get the water up and out. In addition, it uses a float to turn on instead of pressure, so there is never any force on the seal to cause a leak, as my old sump pump did. The vortex impeller is the best part, though. It is why this sump pump does not need a screen.”


Simer 2925B Under Sink Sump Pump

The Simer 2925B is a well-known laundry system and under sink sump pump that includes a 1/4 HP pump, a 6-gallon basin, and a 1.5′′ discharge pipe.

Whether installing a new sink in your laundry room or basement or finally building your dream bar, you will need a sump pump to handle the wastewater, such as the Simer 2925B-02 pump.

When you place the new sink below the sewage line, this sump pump handles gray water and pumps it to the sewage line.

It easily fits under your sink and flushes water away with a 1.5-inch discharge pipe.

Its 0.25-horsepower, 115-volt pump motor can handle up to 2,880 gallons per hour and has a flow rate of 1,620 gallons per hour at 10 feet of lift.

Simer 2925B is a good choice for sinks that are rarely used and require water to drain from a lower level. The 1/4 HP motor can drain small quantities of water and particles up to 1/8′′ in size. The built-in check valve prevents sewage or debris from backing into your sink drain.


  • Corded electric power source
  • 10901.99 liters per hour (maximum flow rate)
  • Compact-contained sump pump
  • Easy under-sink installation
  • 1-1/2″ Discharge pipe size



  • Also ideal for small places
  • Suitable for handling tiny solids without being clogged
  • A small 1/4 HP motor
  • It uses significantly less electricity
  • Drain small quantities of water and particles up to 1/8′′ in size
  • Insufficient power for basement use

Reviews from customers

Stalin, a resident of the United States, claimed Simer 2925B as an excellent value for money. He said, “It works great as a laundry room lift pump for the basement. I recommended it to my friends. It’s a little loud, but at the same time, it stays on for no more than 5 seconds to drain water. I am not a plumber, but I know some plumbing skills and installed it by myself.”

Steven R., a licensed plumber, said, “The ease of installation and the value for the Price of this Simer Pump and basin is phenomenal.”

He added, “A little plastic pin holds the float in the right place. It is extremely breakable and essential. If it does break or is broken, just cut a little piece of wire and install it by bending down both sides.”


Barnes 112551 Under Sink Sump Pump

Barnes 112551 under sink sump pumps are an excellent choice for heavy use in residential and commercial sinks. This system includes a pump, a water storage tank, a discharge line, and a check valve – and has a flow rate of 42 gallons per minute with a 1/3 HP motor.

Barnes sump pumps feature low-cost, high-performance benefits from a rugged, heavy-duty dual-ball bearing design with thermoplastic impellers. 

Barnes sump pumps are all ruggedly built for long operational life and dependability. The package is complete with a stainless steel shaft and heavy-duty seal.

Barnes sump pumps save time and money by being interchangeable with competing sump pump brands.


  • Discharge up to 3,000 gallons an hour
  • 50 gallons per minute (maximum flow rate)
  • Stainless steel material
  • Corded electric power source
  • Split capacitor motor
  • Robust design



  • Has a high output for 1 1/2′′ discharge lines
  • Built-in basin with check valve
  • Non-clogging vortex impeller for solids
  • Works with head heights of up to 30 feet
  • The basin may not be large enough to hold high-flow sinks

Reviews from customers

MarleneLouise, a resident of the USA, loved Barnes 112551 sump pump. He said, “This pump removes water from an irrigation ditch, pushes the water through a 3/4″ hose, and waters mature pistachio trees. Saves a lot of time over using the previous 1/2 hp pump.”

Prairie Armadillo is impressed with the performance of the Barnes 112551 sump pump. He said. “Some reviews say theirs lasted 15+ years, so I went with Barnes. So far, I’m thrilled with its performance, but I can’t believe how quiet it is. Cast iron pumps are the best for silence, but I can’t get over it. So far, no regrets!”


Red Lion RL-SPS33 Under Sink Sump Pump

The Red Lion RL-SPS33 with 1/3 HP, 115-Volt, 3200 GPH Under Sink Pump is an excellent choice if you need a dependable and powerful sump pump.

The RL-SPS33 pump can remove up to 3200 gallons of water per hour, making it ideal for basement or crawlspace applications. The pump is designed and built of long-lasting thermoplastic materials and comes with a 6-gallon polypropylene basin.

This sump pump system is simple to install and is ideal for anyone looking for an efficient and cost-effective way to remove water from their home.

This vertically switched under sink sump pump is ideal for under bars and laundry tubs.


  • Aluminum, structural foam, thermoplastic material
  • 53.33 gallons per minute (maximum flow rate)
  • Corded electric power source
  • Automatic sump pump
  • 1/3 HP pump
  • Durable



  • 1/3 HP Motor
  • Engineered thermoplastic construction
  • 6-gallon polypropylene basin
  • The pre-assembled water removal system
  • Up to 3200 gph
  • Highly expensive

Reviews from customers

Mitch Wyatt, a resident of the United States, said, “Red Lion RL-SPS33 sump pump is a nice and high-quality pump. It’s good and strong. I’m using it in Louisiana in my backyard to supplement a gravity system that can’t keep up in heavy rains.”

Michael Lajoie said, “Red Lion RL-SPS33 sump pump works extremely well. It is easy to set up even though I have no plumbing experience. My only complaint is that the instructions could be a little bit more clear.”


Superior Pump 92072 Under Sink Sump Pump

The Superior Pump 92072 Remote Sink Sump Pump System is pre-assembled and ready to use. The complete kit includes a sump pump, a check valve, a basin, and a basin cover. This equipment is ideal for washing machines, laundry tubs, wet bars, and dehumidifiers.

The pump has a vertical float switch, a 1/3 HP motor, and a thermoplastic or cast iron body capable of handling solids up to 3/8″. It also has a check valve built in to prevent backflow and can drain up to 48 gallons of water per minute, depending on the head height.

These under sink sump pumps are corrosion-resistant thermoplastic and include an adjustable vertical float switch with a piggyback plug to turn the pump on and off. The pump has a powerful yet energy-efficient (4.1 Amp) thermally protected motor for added durability and longevity.


  • Handle temperatures up to 120 degrees F
  • 1/3 HP submersible pump
  • Thermoplastic material
  • Vertical float switch
  • AC power source



  • 1/3HP Motor
  • Prevent backflow of water
  • Drains up to 48 gallons of water per minute
  • Drains 3/8″ solids
  • Corrosion-resistant body designs
  • Not powerful enough for basement use

Reviews from customers

Rachel, a resident of the USA, was delighted with the purchase. He said, “The Superior Pump 92072 works great for the kitchen sink in the cellar. It works excellent for my basement water softener, and I run my dehumidifier into it. This was priced considerably lower than anything comparable in the local stores.”

Jason is happy with the purchase of Superior Pump 92072. He said, “This pump is best to use inside for small projects if you need a pump. I was able to install it myself in about 1.5 hours. It has been running great for about 6 months.”

So that was my list of the top 5 under sink sump pumps that can be attached to your kitchen sinks, bar sinks, utility sinks, and even dishwashers. 

Alternatives To Under Sink Sump Pump


Under sink sump pumps have a few alternatives. The first option is a standard gravity drain system, which uses gravity to transport water from one point to another. The disadvantage of a gravity drain system is that it is pretty slow, and unwanted particles often remain stuck in the drain lines.

Gravity also fails when the house lacks power. Another option is to utilize a portable sump pump that can be brought to any location in the home where you need to drain water. 

The disadvantage of these units is that they are battery-powered and can only work for limited periods before needing to be recharged or replaced. 

So the best option is an under sink sump pump as they are cordless, easy to install anywhere underneath your sink, and can pump out water quickly.

Benefits Of Under Sink Sump Pump

Over its lifetime, an adequately installed under sink sump pump can save you significant time and money. It can help extend your plumbing system’s life and avoid costly repairs by keeping your pipes clear of clogs and other blockages. 

Furthermore, an under sink sump pump can help improve indoor air quality by preventing sewer gases from entering your home.

Buying Guide For Best Under Sink Sump Pump


There is no one-size-fits-all solution for under sink sump pumps. The best under sink sump pumps for your home are related to many factors, such as the height of your cabinets, the type of sink you have, and the amount of water you need to move.

Here are a few things to consider when shopping for under sink sump pumps:

Sink type

Your sink type will determine the size and style of the under sink sump pumps you require. A small submersible pump should be adequate for a standard kitchen or bathroom sink. However, if you have an industrial sink or a laundry tub, a large pedestal or floor-mounted pump may be required.

Cabinet height

The height of your cabinets will also influence the best under sink sump pumps for your home. If your cabinets are tall and deep, a floor-mounted pump may be required to reach the basin’s bottom. A smaller submersible pump may be more appropriate if your cabinets are shorter and shallower.

Water movement

Finally, consider how much water you need to move when choosing under sink sump pumps. If you want to move large amounts of water regularly (such as from an industrial washing machine), consider investing in a larger sump pump with more capacity. 

A small utility pump may require light-duty applications such as moving water from a bathroom sink to a toilet.

FAQs (Frequently Asked Questions) On Under Sink Sump Pump

1. Can you run a sink drain into a sump pump?

Yes, sink drain lines can lead straight to a sump pump. To work correctly, the plumbing between the sink and the sump pump must be at least two feet above any other drainage source. This is because there must be a section for the liquid to sit in while pumping.

2. Why does my sink gurgle when the sump pump runs?

When the sump pump is functioning, the sink usually doesn’t gurgle. The noises are coming from your drainage system. If you are experiencing disturbances, it could be from the main city line to which you are connected. 

The main line has a street connector that permits air in the lines to escape. Reaching a licensed plumber is the best solution for this scenario.

Conclusion: Under Sink Sump Pump

The most important thing to remember when looking to buy an under sink sump pump is that there is a reason for their existence. These systems can pump water away from your home or business to ensure that it does not back up into the basement or other areas of your house or company where water damage would be devastating. 

Most people think these systems are only needed when there is a problem with the gravity drain line and it is unavailable. 

It is necessary to realize that these systems prevent water from backing up into basements or other areas of the home or business where water damage would be devastating.

Michael Bowen

Michael Bowen

Michael Bowen is an ambitious entrepreneur who has been in the business of building homes since he was 19. Michael's commitment to honesty, integrity, and high-quality workmanship has earned him a reputation as one of the best in the business.

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