Quietest Sump Pumps

by Jennifer Porterfield | Last Updated: July 9, 2021
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The best sump pump designs today pump and drain excess water from your house quietly, discharging accumulations of water. They are essential for preventing basement flooding, pumping water out of the pit to protect your home from damage. This keeps your basement or crawlspace dry and free from mildew, mold or structural deterioration.

Most homes with basements today are equipped with durable, effective sump pumps. These pumps are essential for emptying excess water from your basements during heavy rainfall and flooding. Yet some models can be noisy and disruptive to your home life while they operate.

Installing a basin cover and adding insulation around your pump can lower the sound level somewhat. However, to resolve this problem to your complete satisfaction, you may need to shop for a top-quality quiet pump.

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Quietest Sump Pumps on the Consumer Market Today

The quietest sump pumps available to consumers today offering optimal quality operation and effectiveness for long-term use include the following:

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

This green corded electric sump pump is made of an engineered thermoplastic base with a cast iron switch. It is constructed with ⅓ HP cast iron housing with plastic vortex impeller. It includes epoxy Cl and SS fastener that are powder coated, and the oil-powered motor supports thermal overload. This pump is designed for use as a residential sump pit or septic tank pump.

As an automatic design, it has an integral float-activated switch and a cast-iron switch case. The base is plastic. This model provides 43 GPM at 5’ TDH with shut-off at 19.25’ TDH. This product is a clear effluent or de-watering submersible pump. It is the favorite model of numerous contractors and plumbers. This sump pump weighs 21 pounds and measures 7.8 x 10.5 x 10.5 inches.

Pros

•The most efficient and best operating sump pump that you can buy.

•Can run for 10 to 12 consecutive hours on an ongoing basis.

•Has durable construction and powerful pumping action.

•Offers consistently quiet operation.

Cons

•Needs a weep hole added to prevent the metal air hole from becoming clogged.

2. Wayne WSS30VN Upgraded Combination 1/2 HP and 12-Volt Battery Back Up System

This black cast iron combination sump pump system is battery powered. It is sold pre-assembled and ready for drop-in. The primary pump float switch is tested to 1 million cycles, which equals as much as 10 times more than competing models. Even when your power goes out, the back up pump keeps running. This model fits sump basins with a 16-inch diameter or larger.

The primary pump evacuates up to 5100 GPH at 0 feet of head. The 12V DC back-up pump drains as much as 2900 GPH at 0 feet of head. This model is one of the leading DC pumps for performance currently available. This sump pump weighs 44.7 pounds with dimensions of 23.5 x 18.25 x 14 inches.

Pros

•Is easy to assemble and operates smoothly.

•Offers quiet and highly efficient pump operation to prevent basement flooding.

•Ensures excellent water pumping with the use of a Deep Cycle Marine battery.

•Is quite powerful for its compact size.

Cons

•May need a more powerful battery to offer top-quality backup pumping.

3. Superior Pump 91250 1/4 HP Thermoplastic Utility Pump, Black

This sturdy black thermoplastic sump pump has a 10’ electrical cord and a 1-¼ inch NPT discharge for high capacity pumping. It comes with a ¾-inch garden hose adapter, and it has a suction screen that is removable. It can handle up to and including ⅛-inch solids. This pump removes as much as 1,800 gallons of water per hour. It can lift water as high as 25’ vertically.

This Superior pump is composed of superior quality solid copper motor windings and  extra-strength stainless steel jacketed shaft seals. It has double o-ring seals on the motor plate plus split capacitors that are electronically controlled. This submersible utility pump weighs 6.8 pounds and has dimensions equaling 12 x 7 x 7 inches.

Pros

•Pumps water quickly and thoroughly.

•Is quiet, effective and very durable.

•Pumps water efficiently from basements, hot tubs and pools.

•Works well for flushing water from a tankless water heater.

Cons

•May not last for long-term regular use.

4. WAYNE CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel Sump Pump With Integrated Vertical Float Switch

Its rate of water removal per hour is 5,490 gallon (GPH). The top suction design of this model filters out debris to ensure minimal clogging. This submersible sump pump offers strong, durable construction for indoor use. It is structured to accommodate sump pits with 11-inch diameters and larger. The top suction design reduces air locks at the sump pit bottom.

The durable motor housing of stainless steel plus the rugged cast iron pump base ensure this pump’s long-term use. When tested, the vertical float switch offered one million cycles of 4,600 GPH at 10 feet of discharge height. This model provides 1-½-inch NPT discharge to comply with building codes. This sump pump weighs 12 pounds with measurements equaling ‎8 x 8 x 12 inches.

Pros

•Provides robust, quiet and efficient pump action.

•Offers strong, durable pump construction.

•Pump design places water intake suction high enough from base to prevent debris intake.

•Offers smooth, quiet pumping operation.

Cons

•All pump issues may not be covered by the warranty.

5. LITTLE GIANT 521259 VCMA-15ULS VCMA Series Automatic Condensate Removal Pump (115 volts), 1/50 horsepower

This compact sump pump design offers excellent automatic water removal from basements, air conditioning equipment or dehumidifiers. This pump design features a stainless steel pump shaft and a snap-action pump switch. It also has a ⅜-inch barbed check valve and a 6-foot power cord.

This plastic pump model also includes a 1/50 horsepower motor for high performance with thermal overload protection. It includes an ABS tank, ABS motor cover and an ABS volute. Its check valve enables this pump to pump 65 GPH with a one-foot discharge head. The pump tank offers a capacity of ½ gallon of water. This Little Giant sump pump weighs 2.71 pounds with dimensions of 11 x 5 x 7.03 inches.

Pros

•Great pumping action from this small pump.

•Offers smooth, steady and quiet operation.

•Offers fast and easy installation.

•Cost-efficient, effective and durable sump pump design.

Cons

•May have a faulty check valve.

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

This powerful stainless steel and cast iron sump pump includes durable thermoplastic construction components. If offers fast, simple installation as a quality pedestal pump. This model is designed to fit a basin with a 12-inch diameter and provides a 1-¼-inch discharge. The top inlet can prevent any debris in the sump pit from entering and clogging the pump.

As an automatic submersible sump pump, this design provides dependable quality operation to clear flooded basements. It is engineered for long-term use and easy setup. It can replace virtually any brand and  model of ⅓ HP pedestal pump. This sump pump model weighs 11.3 pounds and measures 6 x 33 x 6 inches.

Pros

• Pumps water rapidly and quietly.

•Is designed to last for long-term use.

•Has compact design and is easy to install.

•Offers good quality, reliable pumping action.

Cons

•Some of these pumps may have faulty construction.

•Has a shorter electrical cord than earlier models provided.

Features and Functions to Examine When Buying a Sump Pump

Before you purchase a new sump pump, take time to examine such features and functions as the following:

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1. Overall Sump Pump Design and Construction

Pay careful attention to the housing of the sump pump brands and models that you are considering buying. When the product’s exterior design and construction materials are sturdy and durable, the inner mechanisms will be protected.

For example, some pump models that are on the market today are composed of thermoplastic. This heat-resistant, hardened plastic creates a lightweight pump. If you purchase a lightweight pump, it is easier to move around and set up. Also, thermoplastic is low-cost and does not rust easily.

If you are shopping for a lightweight product that will last over time, your best option is a pump with cast iron housing. It is lighter than a stainless steel model and heavier than thermoplastic designs. Cast iron does rust. Yet if you apply an epoxy coating to its surfaces, your pump will remain rust-free.

2. Select the Best Pump Type for Your Needs

As you shop for a pump, you will view the different types on the market. Submersible pump designs offer excellent performance when they are submerged in water. They are quite easy to operate.

Pedestal sump pumps are portable designs and require very little maintenance. Their slender designs make them easy to move around and carry when needed.

Backup sump pumps are very useful when the electricity goes out or whenever your locale receives heavy rainfall. They have a battery support system that enables them to run steadily for hours to discharge water from your home.

Water-powered pumps work on the same principle as a straw. Yet they clog easily and can require frequent maintenance.

3. Choose a Pump with a Lasting Switch

There are three different types of switches that are commonly included in sump pump designs. The tethered switch lasts longer than the other varieties, but it requires a deeper pit. Vertical switches fit well in narrow sump pits, yet they have a shorter working lifespan than tethered switch models.

Electric sump pump switches can be adversely affected by water accumulations. In addition, they need constant cleaning to avoid any functional problems during pump operation.

4. Check the Motor Horsepower Rating

The more horsepower a sump pump motor has, the better. It takes substantial amounts of power to flush water out of your basement or pool. The greater the horsepower, the faster the water can be pumped and discharged.

If your basement floods or accumulates some water often, measure the water level height. This can enable you to determine how powerful a pump you need to buy.

5. Select a Pump with Quiet Operation

Shop for the quietest operating sump pump that you can find offering top-quality effectiveness for flushing out water. Especially if you are a light sleeper or if you have small children at home, you need a quiet pump.

Especially during stormy weather when water may rise in your basement, you will not be inclined to leave your house. This is not the best time to go out shopping or engage in outdoor activities. Your best instincts will tell you to stay indoors and let your pump get rid of the excess water.

Yet at the same time, you and your family want to enjoy peace and quiet throughout your home. Buying a top-rated, highly efficient and super-quiet sump pump can assure you of accomplishing both of these home life essentials.

FAQs Concerning Quiet Sump Pumps

Are sump pumps silent?

There is no such thing as a silent sump pump. Every brand and model of these pumps generates some level of noise while operating. You need to decide what is an acceptable noise level for your home.

Be aware that if you have a deep basement or excessive ground water in your area, you need a powerful pump. When using this pump, you will most likely require a soundproof cover for blocking the noise.

Are all sump pumps noisy?

Large size sump pumps, which are often found in sizable homes today, tend to generate more noise than smaller models. However, they are necessary for emptying excessive or regular water accumulations from large basements.

The good news is that there are a growing number of quieter pumps now available on the market. This enables you as a homeowner to choose a quiet model that is also effective and cost-efficient. When shopping for a new pump, just be sure to check the features and functions of different models. Quiet pumps are now advertised and promoted as such.

How can I make my sump pump quieter?

If your sump pump creates a knocking sound while running, it may need a spring-loaded check valve (“silent valve”). When installed, this valve will subdue the sound. Your pump motor and lines may also need lubricating.

If any part of the pump vibrates against basement walls during operation, you may need to install wall insulation. Adding a tight-fitting cover to your pump is always helpful for suppressing noise.

What is the Quietest Sump Pump?

As you can see, all of the six top-rated sump pumps discussed above have outstanding features and functions. The Wayne WSS30VN Model with Battery Back Up System offers cast iron construction and a Deep Cycle Marine Battery. The Thermoplastic Superior Pump 91250 provides lightweight convenience and reliable durability.

The Wayne CDU980E Submersible pump includes cast iron and stainless steel construction for strength plus an integrated vertical float switch for extra height of water discharge. The Little Giant 521259 VCMA-15ULS provides automatic condensate removal and a super-compact size.

The Flotec FPPM3600D-01/09 is a slender pedestal pump made of sturdy, durable cast iron and stainless steel with lasting thermoplastic components. All of these models are fine-quality, reliable pumps.

However, our number one choice among these six top-rated sump pump brands and models is the Zoeller M53 Mighty-mate Submersible pump. This model is made of an engineered thermoplastic base with a cast iron switch. It offers quietest, superior automatic design, and its oil-powered motor supports thermal overload.

We hope that this buyer’s guide has been helpful to you in making your sump pump purchasing decision. Of course, after examining the different qualities, features and functions of each product, you will make your own choice. Select the very best quietest sump pump to satisfy your own specific preferences and needs.