Zoeller M53 Mighty-Mate 1/3 Hp Submersible Automatic Sump Pump Review

 Zoeller's best selling sump pump, the M53 Mighty-Mate 1/3 Hp Submersible Automatic Sump Pump with the Best Price
 
 
This Sump Pump
will really be appreciated when your basement or crawlspace starts to flood!

 

“THE MIGHTY-MATE”
This sump pump works really hard, lasts a good long time and is not expensive. What else could you ask for? How about Free Shipping?

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

1/3 Horse Power
Submersible Sump Pump
Fully Automatic
Submersible pump for dewatering (sump) or effluent (septic tank systems).
Features

  • Corrosion resistant powder coated epoxy finish
  • No sheet metal parts to rust or corrode
  • Stainless steel Screws, switch arm, guard handle
  • No screens to clog
  • Watertight neoprene square ring between motor and pump housing
  • Solid buoyant polypropylene float
  • Oil-filled, hermetically sealed
  • Automatic reset thermal overload protected motor
  • Upper and lower sleeve bearings running in bath of oil
  • Entire unit pressure tested after assembly
  • Carbon and ceramic shaft seal
  • Maximum temperature for effluent or dewatering 130°F (54°C)
  • Passes ½” spherical solids
  • On point: 7 1/4”•Off point: 3”
  • Major width: 10 3/32″
  • Major height: 10 1/16″
  • Watertight and dust tight
  • Permanently oiled bearings
  • Cast iron Switch Case, Motor pump housing
  • Engineered thermoplastic base
  • Engineered, glass-filled, plastic
  • Impeller with metal insert
  • Lower and upper bearings, oil fed

Below Are Some Reviews By Buyers of the Zoeller M531/3 HP Cast Iron Automatic Submersible Sump Pump

Zoeller's best selling sump pump!5.0 out of 5 stars Zoeller M-53 Sump Pump
By Victor H. Agresti TOP 500 REVIEWER on July 21, 2007
Amazon Verified Purchase
Zoeller M-53 Sump Pump

A house we are remodeling had a leaky basement. Heavy rains lasting a few days resulted in an inch or more of water in the basement. A real mess. We got bids from 6 basement waterproofing companies. Five companies said they installed Zoeller M-53s because they were the most reliable pump they were aware of, and angry customers with failed pumps were bad for business.
The company we hired did a great job, as the basement is now bone dry regardless of rainstorms. The M-53 is so quiet, that unless you are near the sump basin, you can’t hear it run. It’s only been a year since installation, so I can’t rate pump longevity; but so far, it’s worked just fine.

The M-53 turns on when the water level depth is 7″, and shuts off when the water depth is 3″.

The contractor installed a sump basin with TWO pumps: an M-53 and the Zoeller model 507 backup pump, which uses a 12-volt marine-battery. At a 5 feet head (from pump to water discharge), the M-53 pumps 43 gallons per minute, and the 507 does 23 GPM. A backup battery operated pump provides extra protection when the primary AC pump fails due to: storms, brownouts, the primary pump fails due to damage, mechanical malfunction or obstructions in the pit, or when the primary pump fails due to damage, mechanical malfunction or obstructions in the pit, or when the primary pump fails to keep up with excessive water due to rain or overloading. As far as I know, the 507 has never kicked-in, but it does eliminate worries about basement flooding.

The bottom assembly (containing the feet) is plastic on this pump, as is the impeller. Zoeller makes a better version, called the M-57, which is identical to this one, except the base is cast iron, as is the impeller. A cast iron impeller will hold up better to gravel, sand, or other hard things being sucked in to the pump, as compared to the plastic impeller of the M53.

I own two M53s and an M57. The M57 feels like it weighs 10 pounds more, due to its additional cast iron. If you drop the M53 (e.g., while servicing it), the plastic base looks like it could easily break. If you drop the M57, you’ll dent your floor. If I had it to do again, I’d get M57s, even though the M53 is a fine pump.

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

Zoeller's best selling sump pump!5.0 out of 5 stars Zoeller M-53 Sump Pump Heavy duty, rock solid workhorse
By Zaine Ridling on March 18, 2008
Amazon Verified Purchase
Had this pump for four years in my house and eight years in my businesses ‘ it has never failed yet. Those people who give it bad reviews often don’t have a clue to what a sump pump does, and the different types. Zoeller’s M53 shares the same dimensions and is nearly identical to the M57. The M53 has a cast iron switch case, motor, and pump housing, a thermoplastic base, and an engineered plastic impeller with metal insert. Like the M57, it can pump 43 gallons (163L)/minute, passes half-inch solids, and shares a 1.5″ discharge. Zoeller is the industry standard: don’t let anyone tell you differently. It’s the brand the professionals use and the plumbers recommend. If you need the extra casing weight and prefer a cast iron impeller, get the M57.

Zoeller's best selling sump pump!5.0 out of 5 stars Zoeller M-53 Sump Pump Rock solid sump pump – with some periodic maintenance
By GNY on March 28, 2011
These Zoeller pumps are virtually bombproof. I have an M53 and M98 with battery backup protecting my basement. They run very reliably and are easy to service. However, you can’t just plug them in and forget about them. Here are a few things I’ve learned over the years.

***IMPORTANT***

The key to keeping them running forever is some periodic service.

1) SWITCH : As many have found the hard way, it’s unfortunate that the switch in this pump is the weak link in an otherwise bombproof product. Luckily, this plastic switch is very easily replaced with a screwdriver ($25-part # 004892 or 004705 – don’t forget a rubber gasket). They seem to last 3-6 yrs depending on the conditions used – mine activate on average every 2-3 minutes, sometimes as frequently as every 20 sec during a heavy storm. The switches in my pumps last 3-4 yrs.

2) RUBBER FLOAT LEVER BOOT: The rubber boot/seal where the float lever enters the pump cap assembly will harden over time, providing just enough resistance for the lever not to activate the pump switch (very frustrating to find the pump submerged underwater, then the slightest movement triggers the motor) – keeping this lubricated with a bit of silicone grease will help prevent or solve this problem. (Make sure not to use a petroleum based grease.) When/if it fails, the cap assembly will need to be replaced ($30 – part #004703).

3) IMPELLER/CHECK VALVE : periodically remove the base of the pump (just remove several screws) to scrape/clear out any built up debris or buildup, clear the area by the exit pipe and make sure the check valve can operate properly.

4) FLOW HOLES – there are two small holes in the pump assembly by impeller and exit pipe. These will get clogged over time and can cause an unlikely ‘airlock’ situation where the impeller with turn freely within a pocket of air and not push any fluids. Keeping these holes clear with a nail will prevent this condition.

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

Zoeller's best selling sump pump!5.0 out of 5 stars Zoeller M-53 Sump Pump Very well built and sturdy sump pump, November 22, 2013
By MCO
Amazon Verified Purchase
This review is from: Zoeller M53 Mighty-mate Submersible Sump Pump, 1/3 Hp
I did a lot of searching and read a lot of reviews while looking for a reliable sump pump. I picked this Zoeller Mighty-Mate because it had the best reviews from all sources. It also replaced a lower grade Zoeller sump pump that worked for 13 years. So far it has worked perfectly and is extremely quiet. The price is a little more, but this thing should last for 20+ years. I have not experienced any problems with the switch (mentioned by others), but bought a spare switch when I purchased the pump. Depending on your sump size and configuration, you can add a float switch and bypass (leave on) the switch on the pump. I am still considering this because I have enough room in the sump to do so and it could reduced the frequency of pump activation.

Zoeller's best selling sump pump!5.0 out of 5 stars Zoeller M-53 Sump Pump A Workhorse, October 24, 2013
By J. Thomas (Boulder, CO)

Amazon Verified Purchase
This review is from: Zoeller M53 Mighty-mate Submersible Sump Pump, 1/3 Hp (Tools & Home Improvement)
During the recent storms and flash floods here, my sump pump became very active. The Zoeller M53 was up to the task and is still clearing the sump pitpumping twice every minute and this is day 40 since the water table rose to basement level at my house. I installed a second one for backup, but the original is doing fine.

This is my Zoeller M53 Mighty-Mate Review.
The Zoeller M53 Mighty-mate 1/3 HP Cast Iron Submersible Sump Pump has had a very good reputation for years, and it is a favorite of a lot of plumbing companies and Sump Pump installers. The Zoeller Mighty-Mate is relatively inexpensive, but don’t be fooled, it is a very hard worker, and will last for years. Zoeller has developed the float system so that it is very reliable. All Zoeller’s pumps are factory tested underwater for real life conditions. The strong Cast Iron motor housing will keep the motor running true under torque, so it will last longer. So I give the Zoeller 53 “Mighty Mate 1/3 HP High Capacity Automatic Sump Pump very high marks indeed for being a Best Value Sump Pump.
 

You may download the Zoeller M53 Installation manual using the following link: Download The Zoeller M53 Installation Manual Here

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

 

 

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