Review of ZOELLER M53 sump pump

ZOELLER M53 sump pump

A sump pump is used to remove the accumulated water from the basement of houses. It is generally used to fight against basement flooding and to solve the problem of dampness. Zoeller is a renowned manufacturing company of pumps in Kentucky. It is the oldest and most reputed pump manufacturing company in the USA.

Among its many products, the Zoeller Sump Pump M53 is at the top of the favorite list of the plumbers and the contractors. It is an economical product with a simple assembly than other sump pumps in the market. Detailed features of the Zoeller M53 Mighty-Mate 1/3 HP Submersible Sump Pump are described as follows –


Build and design features

Sump pumps are used in damp areas, so it is necessary to have the capability of enduring the heavy flow of water. Mostly, the delicate internal parts have to face an extra load of pressure. The Zoeller M53 Sump Pump is made of cast iron that covers the whole body of the pump for resolving this problem. Heat is allowed to be dispersed quickly and efficiently into the water by the cast iron. This makes sure the extra safety of the delicate internal parts. Sump pumps usually work in water, so there is a chance of corrosion. But, Zoeller M53 is coated with cast iron and dried with epoxy in order to fight against corrosion.

Main exterior parts

Power cord, discharge and the handle are the main exterior parts of Zoeller M53. It consists of a stainless steel handle for its easy movement. It has a 3 meter long power cord which is safe and strong. In the basements, it helps the sump pump to avoid accidental electric dangers. A 1-½ inch NPT discharge is offered by manufacturers that can be fitted to any standard PVC or pipes. It also has the capacity of removing up to ½ inch of debris.

Interior Motor and Casing

The Zoeller M53 has a 4 pole motor to offer 1/3 HP with 1550 RPM of ultimate speed. It is rated as the best available power in the sump pump industry by the plumbing experts. It consists of overheating switch that makes sure of its protection in spite of the production of surplus heat. Oil cannot seep out from its motor due to a ceramic and carbon made shaft seal.

Zoeller M53 vs M57 Comparison table

DescriptionZoeller M53Zoeller M57
with metal
Pump housingcast ironcast-iron
Power1/3 HP1/3 HP
flow rate
43 GPM43 GPM
about $20

Safety, Switch Assembly and Impeller

You will be offered a choice of either a plastic impeller or cast iron impeller. It has a good suction power with no clogging facility. The grooves of the impeller are specially made to make sure that the motor withdraws water quickly and efficiently. The Zoeller M53 automatically switches off and on with the help of the switch assembly. The 2 pole switch is connected to a float. The level of water rises, with the rise of float and the motor is switched on automatically. Durable polypropylene is used to make the float for its smooth function. This pump also consists of a switch guard to ensure free opearation.

To conclude, all the above features make the Zoeller M53 a superior and excellent product. It comes with an extended warranty of 3 years. It is one of the best sump pumps in the market.