The leading name in sump pumps the Zoeller brand is the most recommended sump pump by professional plumbers and basement waterproofers. Being the least expensive of the Zoeller sump pumps the M53, valued in the low $100’s, seem like the ideal sump pump for a great price. The Zoeller name being so trusted you’d think the M53 would be flawless. You’d be wrong.
The most frequent complaint of failure with Zoeller M53 is due to the float switch malfunctioning after a couple years. There are reports of people calling in to customer service and being told that the switch should be changed every year. Say what?! 27% of the reviews on Amazon, as of this writing, are 3 stars or less. The complaints of most of these individuals are regarding the float switch. That’s a bit more than 1 in 4. This is the reason why I do not recommend the M53 and gave it a lower score than that found on Amazon. I don’t think anyone should gamble with being the 1 in 4 who has a float switch problem and suddenly discovers their basement totally destroyed. I’d rather you spend your hard earned cash on something more reliable. This potential issue is just too severe, if you were to be one of the unlucky ones, to not warn about.
The 1/3 HP motor is perfectly fine for a sump pit that doesn’t have a constant flow of water year round. The motor is the same as the one in the M57 model which has no issues. It does it’s job.
Features & Specs
- 1/3 HP motor
- 43GPM at 5ft, 34 at 10ft, 15 at 9ft (shut off at 19.25ft)
- Width 10-3/32″ Height 10-1/16″
- Automatic with float activated switch
- No screens to clog
- 9ft cord
How much should you expect to pay for it?
Does it include a warranty?
Yes, starting 12 months from date of installation or 18 months from date of manufacture with the option to buy 3 years directly from Zoeller.
What are others saying?
- “If I had it to do again, I’d get M57s, even though the M53 is a fine pump.”
- “A coworker who I recommended the pump to also had a switch fail after 2 years. The pump itself good, but the switch is junk.”
- “The M53 pump runs strong and on demand. It is quiet while still being powerful. The only downside to this pump would be I had to change the switch float to a more “lenient” float setup, otherwise my pump would run much more than really necessary. Otherwise, the 1/3HP M53 has been a winner in my book.”
- “I just replaced my 20 year old Mighty-Mate with an identical model. The original Mighty-Mate was already installed in our house back in ’93 when the house was built. The float switch finally gave out after 20 years of service.”
- “My M53 also experienced a switch failure to the “on” position after having it in use for approx. 2 1/2 yrs.” (read more…)