Top 5 Quietest Sump Pumps in 2021 (Reviews and Buying Guide)

A sound mind opens a path to a sound life. We, as people, desire a quiet and relaxing environment, especially in our home. However, it is easier said than done. We all know that excessive noise can cause many problems with our mental health. But what are you going to do when the noise is coming from your pump, which you placed to prevent floods? One of the most annoying things about a sump pump is the noise it produces during operation. This was a major issue for many people for a very long time. However, we humans always found a fix for everything.

Similarly, there is also a solution to our problem, and they are the quietest sump pumps. With these bad boys, you will never have to worry about the gut-wrenching and mind-thrashing sound a pump creates during the water removal process.

 

quietest sump pumps

 

Editor’s Choice
Superior Pump 91250 1/4 HP Thermoplastic Submersible Utility Pump with 10-Foot Cord
Best Value
Zoeller M53 Mighty-mate Submersible Sump Pump, 1/3 Hp
Premium
WAYNE CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel Sump Pump With Integrated Vertical Float Switch
Superior 91250
Zoeller M53
WAYNE CDU980E
Editor’s Choice
Superior Pump 91250 1/4 HP Thermoplastic Submersible Utility Pump with 10-Foot Cord
Superior 91250
Best Value
Zoeller M53 Mighty-mate Submersible Sump Pump, 1/3 Hp
Zoeller M53
Premium
WAYNE CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel Sump Pump With Integrated Vertical Float Switch
WAYNE CDU980E

5 Best Quietest Sump Pump

In this section, we have presented the details of the best quiet sump pumps out there. You can have a thorough look or just go through the advantages and drawbacks of them.

1. Superior pump 91250 1/4 HP Thermoplastic

Usually, pumps that are quiet and compact do not come with a high suction or pumping power. However, it would be wrong to say the same for the Superior  91250 utility pump. First of all, the product features a thermoplastic construction that is able to resist corrosion to provide years of service. The build would have backfired in the long run if the internal components were not made with quality materials. However, that’s not the case. It features stainless-steel shaft seals, copper motor windings, electronic split capacitors, and a motor plate with double seals. Additionally, the pump offers a high-flow impeller and a removable intake screen, able to filter out debris and solids of 1/8-inches.

On the other hand, the ¼ Hp sump pump packs a decent punch when it comes to pumping water. It can lift about 1800 gallons per hour when in contact with water. Also, the pump can lift water from a maximum vertical distance of 25-inches. The utility pump has an NPT discharge rate of 1/4-inches and a garden hose adapter of 3/4-inches. It also comes with a 10-inches power cord, which is long enough for most jobs. One final thing about the pump is that it is compact and features a carrying handle, making it extremely portable.

Pros
  • Comes with pumping power of 1800 GPH/30 GPM
  • High-quality exterior and interior components
  • The removable intake screen keeps the impeller protected
  • Versatile and portable
Cons
  • It doesn’t feature an automatic on/off switch
  • Unable to filter out big particles and a large amount of debris

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2. WAYNE CDU980E 3/4 HP Submersible Sump Pump Cast Iron

If your ultimate goal is to have a pump that features noiseless operation with a high pumping rate, then have a look at the WAYNE CDU980E ¾ HP submersible pump. The ¾ HP motor is not just a show. This pump is a literal beast when it comes to lifting water. It can pump water at a rate of 3500 GPH at 20ft distance, 4100 GPH at 15 feet, 4600 GPH at 10, and 5490 at 0 feet. Thus, having a slow operation should be your least bit of concern.

Apart from that, the product features a combination of cast iron and stainless body. The unique construction allows the pump to resist corrosion and be sturdy at the same time. Furthermore, it comes with an abrasion-resistant glass capable of keeping the pump safe from abrasion. On the contrary, the float switch is fully automatic, and the sound it produces is less to none. It also comes with a waterproof power cord, ensuring safety from electric shocks.

Another feature that we found interesting is the Unique-suction design. The feature enables the pump to prevent the clogging of debris and airlock. Pretty useful if you do not prefer maintaining the product every now and then.

Note: It is best if your basin or sump pit has a diameter of 11-inches or more.

Pros

  • Heavy-duty motor with high water pumping capability
  • Resistant to corrosion, abrasion, and impacts
  • Top-suction design prevents clogs and airlock
  • Automatic float switch features noiseless operation all the time

Cons

  • The float switch may require changing after a few years
  • Limited instruction in the user manual

3. Zoeller M53 Mighty-mate Submersible, 1/3 Hp

The first impression you get from the Zoeller M53 sump pump is not a good one. It looks a little bulky; so, you may wonder whether it is quiet enough for your home. Let us tell you; appearances can be deceiving. The pump, although looks bulky, features a noiseless operation. It comes with a powerful motor of 1/3 HP, which is able to pump a maximum of 2700 gallons of water per hour. However, as the distance increases, the GPH will reduce with it.

On the other hand, the product comes with a cast-iron body with a thermoplastic bottom. The former makes the overall pump sturdy and protects the motor and components inside from impacts. The thermoplastic bottom keeps the product from overheating. Additionally, the pump’s exterior is coated with epoxy powder to resist rust. The pump also comes with a vertical float switch that automatically turns on/off when in contact with water.

There is also a power cord, which is 9 feet long and features a waterproof cover to prevent electric shocks. This pump usually lasts for 2-4 years. It weighs approximately 21 pounds, allowing you to carry it around effortlessly.

Pros

  • Durable, sturdy, and able to resist corrosion and impacts
  • Features a maximum water flow rate of 2700 GPM (Gallons Per Minute)
  • Thermoplastic bottom prevents overheating issues
  • A fully automatic vertical float switch

Cons

  • It has a bulky body
  • You will need to make adjustments to prevent airlock

4. Wayne VIP50 1/2 HP Thermoplastic Portable Electric Pump

It is more or less evident that pumps with smaller sizes are quieter during operation. The Wayne VIP50 is a pump famous for its soundproof function and compact design. Do not be deceived by its size; it may look small, but it is certainly not weak. Initially, the pump features a thermoplastic housing. It allows the pump to resist corrosion and overheating problems; however, it makes the pump vulnerable to heavy impacts. So, take precautions while moving the pump from one place to another.

A good thing about thermoplastic construction is that it makes the product lightweight and portable. The said portability is intensified due to the addition of a carry handle included at the top of the pump. The product is also reinforced with glass to prevent rust buildup. Apart from that, the pump comes with a motor of 1/2 HP, which has a capacity of lifting 2500 gallons of water in an hour. Remember, increased distance from the water will reduce the GPH rate of the product.

The pump also comes with a discharge outlet of 1-1/4-inches, capable of filtering out solids of 3/8-inches. Furthermore, the product is completely sealed from top to bottom; thus, you need not worry about debris or air, causing issues to the overall mechanism.

One last thing to know about the sump pump is that it features both manual and electrical operation. It offers an adjustable float switch, which is automatic and starts when the water reaches a certain level.

Pros

  • It is extremely lightweight and compact
  • Provides a powerful water flow rate of 2500 GPH (Gallons Per Hour)
  • Can resist rust, corrosion, and overheating
  • It can filter out solids of 3/8-inches

Cons

  • Requires 2.5 inches of standing water for the float switch to work
  • Extreme pressure can cause cracks at the base of the pump

5. Flotec FPPM3600D-01/09 1/3 HP Pedestal Sump Pump

The last on our list of the quiet sump pump is the Flotec FPPm3600D-01/09 pump. It is an extremely lightweight product, which comes with a compact design. It is suitable for small tasks, but can also do some heavy lifting. First of all, the product comes with thermoplastic housing, which explains the lightweight body. The said material also helps the product to resist corrosion and overheating. Thus, except for heavy impacts, you have nothing to worry about.

Additionally, the sump pump weighs about 11.3 pounds only, making it extremely portable. On the contrary, it will still need a large basin of 12-inches in diameter, which may come as a nuisance.It also comes with a built-in thermal overload circuitry that protects the electric motor all the time. Furthermore, the power cord is about 6 feet long, which is decent enough. Other than that, the pump features a 1/3 HP motor, capable of delivering a maximum water flow of 3840 GPM (Gallons Per Minute).

. It has a discharge pipe of 1-1/4-inches and an automatic switch, featuring a float lever. The lever allows you to adjust the float switch according to the sump pit depth. The Flotec pump is usually used as an alternative for the main pump. It can be a handy backup when your primary pump is malfunctioning for any particular reason.

Pros

  • It weighs only 11.3 pounds
  • Thermal overload circuitry protects the motor
  • The thermoplastic exterior is resistant to corrosion
  • Adjustable float switch

Cons

  • The plates are susceptible to corrosion
  • The metal shaft for the float switch may rattle due to poor maintenance

Quietest Sump Pumps: The Ultimate Buying Guide

There are a few things of consideration that require your attention before you can purchase a quiet sump pump. These features can aid you in choosing an optimal product for your home.

Noiseless

To be honest, there are no sump pumps that don’t produce a single sound. All of them will create at least a little bit of noise. However, the noise level may vary according to their motor sizes and build. In the past, pumps used to feature PVC housing, which used to create loud noises. However, the modern sump pumps are much quieter due to their thermoplastic or cast-iron construction. Hence, a pump featuring a cast iron or thermoplastic body should be your first choice.

On the other hand, motor sizes also come into play in the production of noise. A large motor will be more powerful and noisier compared to a small motor. Therefore, if your primary objective is to lift a massive amount of water, then a sump pump with a large motor should be your go-to product. There are ways to make your big pump quiet, but more on that later. If you are planning to work with shallow pits, then a small motor will be more than enough for you. It won’t produce too much noise, and you can have a smooth operation.

Pump Build

It is extremely important to consider the construction of your sump pump. It will determine how long the product will last. We already mentioned that cast-iron pumps operate quietly. They are also able to resist abrasion. On the other hand, thermoplastic build ensures resistance against corrosion and offers a lightweight body.

Stainless steel is less prone to rust than cast iron, but they are quite heavy in comparison to the thermoplastic body. Your ideal pump should have a cast-iron build or a combination of both cast iron and thermoplastic. It will resist corrosion, abrasion, and overheating while producing a minimum amount of sound.

Sump Pump Types

Usually, the choice is between a submersible and a pedestal pump. Pedestal pumps come with a motor, which is situated above the ground, creating more noise and obtrusion. On the other hand, submersible pumps are usually placed underwater; therefore, it creates less sound. So, for noiseless operation, submersible sump pumps should be your product of choice.

Power Source

Generally, pumps use electricity to run. However, power outages or pump malfunctions are very common incidents that can happen anytime. So, when purchasing a sump pump, you should also consider the power requirements of the product. A battery-operated sump pump can be very useful if you have frequent power outages in your area.

How to Make Your Sump Pump Quieter

There are a couple of reasons which can make your pump produce unwanted noise. The fixes are quite simple, but it’s difficult to pinpoint the cause of the problem. Without further ado, let’s look at the causes and fixes of sump pump noise issues.

Motor Producing Noise

Sometimes, the motor of your pump may produce excessive noise, and in order to fix that, you may need to change the housing to cast iron or lubricate it adequately. Other solutions are changing the pump to a submersible one, or you can place a cover to reduce the noise. Placing a cover will muffle up the noise, but it won’t completely block it.

Slurping Noise

The slurping noise would be the same as liquid being sucked with a straw. It happens due to a lack of maintenance. You can fix the problem by conducting regular maintenance. You should also make sure the pump is submerged under a few inches of water to reduce slurping noises.

Excess Vibration

When the discharge pipe is in contact with the sump pit or a nearby wall, it causes the pump to produce vibration noises. The fix to the problem is quite simple. You can use rubber grommets to align the pipe. On the other hand, you can also try using foam insulation to wrap the pipe. Only wrapping the place of contact would be enough to stop the vibration.

Gurgling and Clanging Noises

Clanging noises require the same solution we have mentioned for excessive vibrations. Gurgling noises, on the other hand, are produced when water flows irregularly through the discharge pipe after each pumping cycle. The solution to the problem requires upgrading the standard check valve with a spring valve. This will enable the water to travel more freely and evenly.

Also, make sure to adjust the float switch in a manner where the pump won’t completely drain the sump pits.

FAQ

1. What is a Quiet Sump Pump Check Valve?

Quiet check valves are used for silent pump operation. It is almost the same as standard check valves but comes with a hinged, spring-loaded flapper mechanism. The spring causes the flapper to close when the pump is turned off, stopping the liquid flow. The mechanism eliminates reverse water flow, which puts an end to the noise produced through hydraulic shock.

2. What Makes a Sump Pump Quiet?

A cast-iron construction can make a pump quieter than other ones. Moreover, a small motor produces less noise and vibration, making the pump silent. Also, the addition of a quiet check valve can further help in making a pump quiet.

Final Verdict

Some people get accustomed to the noise of a sump pump, while some just cannot tolerate it. If you are from the latter group, you shouldn’t let a pump mess up the relaxing environment of your home. Even if it doesn’t bother you at first, it may start doing so one day. Take our advice and prevent it before happening. In our review of the quietest sump pumps, we have discussed almost everything that may concern you. So, do not wait for the inevitable and get that solution to your problem right away.

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