Zoeller Sump Pump

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If you’re in the market for a reliable sump pump, Zoeller’s Flow-Mate Model M98 Cast Iron Submersible Sump/Effluent Pump might be just what you need. This pump is designed for use in residential sump pits or septic tanks and features automatic operation, cast iron construction, and a maximum flow rate of 72 gallons per minute. In this article, we’ll provide a detailed overview of the Zoeller sump pump, including its features, benefits, and technical specifications.

Features and Benefits

Zoeller sump pumps are known for their quality and reliability. Here are some of the features and benefits of Zoeller sump pumps:

Automatic Operation

One of the key features of the Zoeller sump pump is its automatic operation. The pump is equipped with an integral float switch that turns it on and off based on the water level in the sump pit or septic tank. This means you don’t have to worry about manually turning the pump on and off or monitoring the water level yourself.

Cast Iron Construction

Another important feature of the Zoeller sump pump is its all cast iron construction. This makes the pump durable and long-lasting, even in harsh conditions. The pump housing, switch case, and base are all made of cast iron, while the impeller is made of engineered plastic for improved performance.

Stainless Steel Guard And Handle

To further enhance durability, the Zoeller pump features a stainless steel guard and handle. These components are designed to resist corrosion and rust, ensuring that the pump remains in good condition for years to come.

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Maximum Flow Rate of 72 GPM

With a maximum flow rate of 72 gallons per minute, the Zoeller pump is capable of quickly and efficiently removing water from your sump pit or septic tank. The pump is capable of handling 1/2″ solids and has a shut-off head of 23 feet.

Factory Tested

To ensure that the pump meets the highest standards of quality and performance, the Zoeller pump is 100% factory tested before being shipped. This means you can rely on the pump to perform as expected right out of the box.

Technical Specifications

Here are some technical specifications that are commonly associated with sump pumps:

Dimensions and Weight

The Zoeller pump measures 11 x 7.75 x 12.25 inches and weighs 31 pounds. This makes it relatively compact and easy to handle during installation.

Zoeller Sump Pump: Power Source and Voltage

The Zoeller pump is powered by AC/DC electricity and has a voltage of 115 volts. This makes it compatible with most residential electrical systems.

Zoeller Sump Pump: Horsepower and Flow Rate

The sump pump has a horsepower rating of 1/2 HP and a maximum flow rate of 72 gallons per minute. This makes it suitable for use in residential sump pits or septic tanks.

Zoeller Sump Pump: Warranty

The Zoeller pump comes with a warranty that covers any defects in materials and workmanship. The warranty period for the pump varies depending on the model, ranging from one to three years. This warranty is limited to the repair or replacement of the defective parts and does not cover any damage caused by improper installation or usage.

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Zoeller Sump Pump: FAQs

Here is a list of the most common Frequently Asked Questions:

What is the maximum temperature the Zoeller sump pump can handle?

The Zoeller pump is designed to handle water temperatures up to 130°F (54°C). However, it is not recommended to use the pump in applications where the water temperature exceeds 120°F (49°C) for extended periods.

Is the pump easy to install?

Yes, the Zoeller pump is designed to be easy to install. It comes with detailed instructions and all the necessary hardware for installation.

Can the Zoeller sump pump be used for dewatering applications?

Yes, the Zoeller sump pump can be used for dewatering applications. However, it is important to note that the pump is designed for use in clean water and should not be used in applications where the water contains solids or debris.

Is the pump noisy during operation?

The Zoeller sump pump is designed to operate quietly, but some noise is to be expected during operation.

How often does the pump need to be serviced?

The Zoeller sump pump should be inspected and serviced annually to ensure that it is in good working condition. This includes cleaning the pump and checking for any signs of wear or damage.

What is the life expectancy of a Zoeller sump pump?

The life expectancy of a Zoeller sump pump varies depending on factors such as usage, maintenance, and the specific model of the pump. However, with proper maintenance and usage, Zoeller sump pumps are known to last anywhere from 7 to 10 years or more.

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What shortens the life span of a sump pump?

A sump pump’s life span can be shortened by various factors, such as frequent cycling, incorrect sizing, or lack of maintenance. A pump that is too large for the sump basin will cycle on and off more than necessary, causing wear and tear on the pump’s components. Conversely, a pump that is too small will run for extended periods, leading to overheating and premature failure. Proper sizing, regular maintenance, and monitoring of the pump’s operation can help extend its lifespan.

Residential sewage grinder pump

A residential sewage grinder pump is a vital component in modern sewage systems. It efficiently grinds solid waste into smaller particles, allowing smooth passage through pipes and reducing the risk of clogs. These pumps are installed in homes where the main sewer line is at a higher elevation than the residence, enabling waste to be pumped uphill. They offer convenience and prevent sewer backups, ensuring reliable and hygienic wastewater disposal for residential properties.


The Zoeller sump pump is a reliable and efficient solution for preventing water damage in residential and commercial settings. Its high-quality construction and reliable motor ensure that it will last for years with proper maintenance. Additionally, its automatic switch makes it easy to use and ensures that it only runs when necessary, saving energy and reducing wear and tear on the pump.