6 Best Sump Pump Check Valves In The Market

Check valves are versatile in many industries and applications. These valves have a unique design feature that allows them to operate in one direction only. This makes the best sump pump check valves for use in many situations where a valve must be able to block the flow of a fluid – or other gas – from moving from one direction and not the other. Check valves are often used to prevent backflow but have many different uses. 

Best sump pump check valves are essential to your home’s plumbing system because they help prevent sewage or groundwater from flowing back into your home through the sump pump discharge line. 

This article will explain the best sump pump check valves, how they work, and which types you need if you have an active sump pump system.

Basics of Check Valve

A check valve is a fluid control valve that admits only one direction of fluid flow. The ball, needle, and diaphragm are the three most essential check valves. Ball check valves are the most frequent check valve used in domestic plumbing. 


The term derives from the valve’s function to prevent backflow. Check valves can also be utilized in various applications that need one-way flow.  The best check valves for sump pump systems are critical components.

How Do Check Valves Work?

All best sump pump check valves should be installed correctly and with the correct check valve type for the specific sump pump system. Improper installation or the wrong check valve can lead to significant problems down the road. Check valves are essentially valve bodies with two flaps operated by a spring.

  • When the valve is mainly used to prevent backflow, one flap locates inside the pipe and the other outside the line attached to the building or sump pit wall.
  • When the fluid is flowing away from the building, the force of the fluid against the external flap will push the flap upwards. This will cause the internal flap to open and let the fluid from the discharge line into the sump pit.  
  • When the fluid stops flowing away from the building, the external flap will fall back down and close off the flow from the discharge line into the sump pit.

This cycle will continue whenever the sump pump is in operation. There are many best sump pump check valves, each with advantages and disadvantages.

Which Check Valves Should You Buy?

The type of check valve you use is essential. There are many different check valves, each designed for a specific situation. If you use the wrong check valve, you could have problems like water backing up into your house or a foul odor from your sump pit. 

The ball check valve is the most common and best sump pump check valve.


Ball check valve design with positive displacement pumps like sump pumps. These valves are easy to install and work with many different sump pumps. The only downside of ball check valves is that they are more expensive than others.

Best  Sump Pump Check Valve  

Best Sump pump check valves come from various manufacturers, which could make it simple for you to comprehend. This procedure necessitates much research. The best sump pump check valve options are provided below.


Zoeller 30-0181 PVC Check Valve

For most households, the best sump pump check valve is the Zoeller 30-0181. This model is made of plastic and PVC – but don’t be scared away by the build material. It includes 1-1/2 inch slip unions and a flapper that bends over to accept edges of all sizes and shapes. The PVC and plastic body can resist pressures of 4.3 PSI while propelling water up to 10 feet head height. It is also resistant to temperatures of up to 130 degrees Fahrenheit.



MaterialPlastic and metal
Dimensions9.75 x 17.5 x 6.75 inches
Weight‎ 0.01-ounce
InstallationHorizontal or vertical
Connection type1-1/2 Slip X Slip unions
  • It pumps at 4.3 PSI, making it affordable for any family
  • Simple to put above the discharge
  • More dependable than traditional mechanical check valves
  • PVC construction is guaranteed for many years – but only for a while

Superior Pump 99555 Universal Check Valve

The Superior Pump 99555 is compatible with most sump pumps and does not compromise quality. This type has a high head height, making it an excellent choice for sump pumps that must drain water from deep basements. 

This best sump pump check valve can fit almost anything that has an NPT male and female thread connection of 1-1/4′′ or 1-1/2′′.

The Nitril-Bruna N Seal inside the ABS plastic body prevents water from flowing back into the pit. It can withstand pressures of up to 11 PSI; however, if your drain is a considerable distance away, you may need to connect multiple check valves and hoses. 

The valve is simple to install and fits most household sump systems; be careful not to overtighten.



MaterialABS plastic
Dimensions2.75 x 2.75 x 7 inches
Weight‎7.4 ounces
Input connection typeNational Pipe Tapered
Outlet connection typeMNPT
  • Easy installation on most drain lines
  • Preventing water from leaking back after the pump has been switched off
  • Made from solid ABS plastic
  • Two adapters
  • Regardless of build durability, it will not last forever

Campbell B00JFF205Y

The Campbell B00JFF205Y is an ideal option for a silent check valve. However, this best sump pump check valve is relatively inexpensive. This valve has connections that are Slip x Slip. 

It can pump around 100 gallons per minute at a maximum temperature of 120 degrees using a high-pressure sump pump operating at 150 PSI.

Silent check valves are rare, but if your pump is close to your sleep, you cannot survive without one. This Campbell valve is nearly completely silent, so you won’t hear frequent clicking while it’s on and off if you reside in a flood-prone location.



Dimensions‎3.3 x 3.3 x 9.5 inches
Weight‎1 pound
Connection Slip x Slip 
Installation In horizontal or vertical lines   
  • A nearly impossible noise to hear
  • A long-lasting body
  • Compatible with most pumps and drainage lines
  • Suitable for horizontal or vertical installation.
  • For weaker pumps, the internal spring may be too strong

Jackel Sump Check Valve

The Jackel Sump Check Valve is a good option if you’re on a tight budget and need the best sump pump check valve for your house. You may use this valve with most vertical sump pumps because it has one of the most robust flappers on the market. 

Its body is made of ABS plastic and is fastened to the drain and pump lines with steel clamps. 

This valve, despite being small, has a significant impact on water backflow. It is simple to install and leak-free when connected to NPT outlets, city sewer lines, and most other drainage lines, thanks to its heavy-duty rubber interior.




Dimensions‎7.91 x 2.95 x 2.95 inches
Weight9.6 ounces
  • Made of ABS plastic, it is strong and durable
  • Long-lasting flapper
  • High-quality stainless steel connectors provide a tight grip
  • Stay under-tightened or use a pump with less pressure

AY McDonald 4424-100 2069C

The AY McDonald’s 4424-100 is designed to eliminate water hammer, typically after the pumping cycle. Furthermore, the valve’s internal valve closing mechanisms test for leaks under pressure, demonstrating its dependability. 

This product’s one-piece housing and all-plastic body do away with the necessity for gaskets that might degrade over time.

Each of the unit’s 1.5-inch female sockets has a stainless steel clamp that helps to tighten the joint and may be readily mounted over pipes made of PVC, steel, or copper that are of a similar size. The only drawback is how expensive this valve is.



Dimensions3 x 3 x 11.4 inches 
Weight‎13.1 ounces
Size 1-½ inches
  • Quiet design to prevent noise caused by water hammering
  • valve sealing tested at high pressure
  • durable one-piece plastic construction
  • Tight-fitting stainless steel clamps over 1.5-inch pipe connections
  • Expensive

Little Giant 599059

Made of ABS plastic, the Little Giant 599059 has a one-way flapper valve to prevent backflow in horizontal lines. Getting the valves installed is simple; slide them over the pump and drain lines.

Little Giant is known for its high-quality plumbing products, and this is the best sump pump check valve for homeowners with horizontal lines that will protect your system from the backflow that can damage a pump once it turns off.



Dimensions8.7 x 6.3 x 4.2 inches
 Weight10.1 ounces
InstallationIn horizontal or vertical lines
  • Slides over existing ABS, PVC, and copper pipes
  • One-way valve prolongs pump life
  • Flapper easily fits any drain system
  • It will not work unless you install it in the right direction


Check valves are an essential part of any sump pump system. These valves help prevent groundwater from flowing back into your home through the sump pump discharge line. There are many different and best sump pump check valves, each with advantages and disadvantages. The ball check valve is the most common and the best sump pump check valve.

Check valves have a unique design feature that allows them to operate in one direction only. This makes check valves ideal for use in many situations where a valve must be able to block the flow of a fluid – or other gas – from moving from one direction and not the other. 

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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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