Liberty Vs Zoeller Sump Pumps: Which Is Best?

When comparing Liberty VS Zoeller sump pumps, there are certain similarities in addition to the major differences. Both Zoeller and Liberty are popular sump pump brands that offer the best value. Zoeller is popular for most of its reliable sump pump models such as the M53 Mighty Mate, M63, and M98. These models are specialized for different situations including residential use. Both Liberty and Zoeller have a wide range of products with similar housing, motors, and price. They have high flow rates and pump a lot of water within a short period of time. Let’s compare the two brands and their recommended models.

liberty vs zoeller sump pumps


Zoeller is a family-owned business founded in 1939 in Louisville, Kentucky. Its first model was known as the column or pedestal which was later followed by many new models. They produce quality sump pumps over the many decades of their business. Hence, Zoeller is one of the oldest manufacturers with almost a century of experience. The power ranges from ¼ hp to 1 hp within a price range of $100 to $300. Zoeller offers a one-year warranty on all pumps with thermoplastic housings. A 3-year warranty is given for the ones with cast iron housing which includes the Mighty Mate Series and the Flow Mate Series.

Zoeller M53 Mighty-mate Submersible Sump Pump

Zoeller M53 Mighty-mate Submersible Sump Pump

This professional-grade submersible pump with 1/3 hp weighs around 21 pounds. It can be used for both residential sump and effluent septic tank systems. It is built with a well-engineered thermoplastic base and has a cast iron switch. The sump pump is activated with a vertical float switch. The motors can handle small particles without clogging the drain line or the motor. These pumps can be used as a primary pump or a backup sump pump depending on the requirement. You don’t need to worry about the quality as all Zoeller pumps are tested by the manufacturer. You can start using it right away as there will be no electrical or mechanical issues. The product has an overall global rating of 4.7 out of 5. 


  • Factory tested
  • Sturdy and robust build
  • Resistant to rust and corrosion
  • Multi-year warranty


  • Quite expensive


Liberty is also a family-owned business founded in 1965, based in Bergen, New York. They have a wide range of products suitable for various applications. Their products are very popular in the market as the best of 2022. Liberty pumps cost between $100 and $300 with power ranging from ¼ hp to 1 hp. 

Liberty Pumps 247 Sump Pump

This Liberty pump features stainless steel components including the intake plate, rotor shaft, and fasteners. It includes a magnetically operated VMF (Vertical Magnetic Float) switch for smaller pits down to a diameter of 10 inches. It can pump up to 34 GPM and has a maximum discharge head of 21 ft. It can also handle solids up to ¼ inches. The item weighs 22 pounds and it comes with a cord length of 10 ft. This product, with a global rating of 4.6 out of 5 is one of the best models available in the market. It has a very low noise level appreciated by many users. The pump is easy to install even in a confined space and highly durable. The quality is a lot better than the average pumps with a smooth operation.


  • Factory tested
  • Lasts over many years
  • Multi-year warranty
  • Wide range of products


  • User rating slightly less than Zoeller

How to Choose the Best Sump Pump?

The best way to determine the most suitable pump is to decide which brand features the specifications necessary for your water pumping needs. Here are some tips that will help you decide the better option.

  • Zoller is a better choice of cast iron components are important.
  • Liberty is the ideal solution for maximum head pumping over 23 – 25 feet.
  • If your sump basin is narrow, most Liberty pumps are narrower by a few inches.
  • When considering the ease of purchasing parts, Zoeller might be ahead.
  • You can also consider the durability and replacement of float switches.
  • ½ hp or ¾ hp pumps are a good choice if your sump pump runs continuously during heavy rains and storms in your region.

Frequently Asked Questions

Which Sump Pump is Better Zoeller or Liberty?

According to user reviews, Zoller pumps seem to stand out slightly among the two. The warranty is longer for specific Zoeller sump pump models. Liberty uses one housing, mostly aluminum while Zoeller uses two. Although Liberty offers more horsepower options, it doesn’t give that much in performance.

How Long Do Liberty Sump Pumps Last?

Since Liberty sump pumps have a strong build with robust mechanical parts, they can work well for over 10 years. Make sure to get professional installation support to make sure that your sump pump is installed properly. Although sump pumps don’t last forever, a quality product will last over a decade or two.

How Long Do Zoeller Sump Pumps Last?

A sump pump will usually last for around 7 – 10 years. This useful lifespan can be extended with proper maintenance and working conditions of the pump. Certain users even claim that their Zoeller sump pump lasted for over 30 years. Zoeller M53 Mighty-Mate submersible sump pump is considered the longest-lasting sump pump currently.

How Many hp Should My Sump Pump Be?

There is no specifically correct size since the power requirement is determined by several factors which differ from one household to another. This includes the area of drainage, the depth of groundwater, the depth of the basement, etc. A 1/3 horsepower pump is usually enough for most houses. You can even go for a 1/2 hp pump since it doesn’t cost that much more.

Which is Better Cast Iron or Stainless Steel Sump Pump?

The two housing types have different positive aspects. Stainless steel has anti-corrosion properties and the sump pump will last for a long time without rusting. Cast iron maximizes the cooling ability and hence distributes heat better from the motor. Since these are two different properties, you need to consider the interior of the sump pump since there are many other factors involved to determine the best solution.


Comparing Liberty VS Zoeller sump pumps is not an easy task since both these brands have their own pros and cons. However, Zoeller stands out among the two options. Despite being slightly expensive, they offer many benefits including high durability and fewer motor issues. Here are some of the best sump pumps that you can try out.

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