The best sump pumps, ranked by what they move at real lift
Five pumps that cover almost every residential pit, compared on the number that matters: how much water they move at the height your basement actually needs.
The best battery backup sump pumps
The storm that fills your pit is the storm that takes the power out. This is the half of the system that works when the other half cannot.
Sump pump keeps running: what is actually wrong
A pump that runs constantly is burning itself out, and in most cases the cause is a part that costs less than a tank of gas.
- 90
- 56 of 56
- None
- 0
What we would buy in each category
Zoeller M53 Mighty-Mate
The cast-iron 1/3 HP pump most plumbers reach for, and the one we would put in our own pit without thinking about it.
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Liberty Pumps 257
The sealed vertical float and commercial build are exactly the margin a finished floor is worth.
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Zoeller M53 Mighty-Mate
The benchmark submersible: cast iron, a proven float, and sizing data you can actually use.
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Zoeller M53 Mighty-Mate
The cast-iron pump every other cast-iron pump is measured against, at a sane price.
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Wayne CDU980E
Moves serious water without the mechanical racket that usually comes with it.
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Superior Pump 91250
A light, cheap utility pump that lives on a shelf until the day you urgently need it.
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Sections
Sump pumps
The pump that keeps a basement dry is rarely the biggest one. It is the one sized to how high it has to push water and how fast the pit refills.
Backup systems
Storms take the power out and fill the pit in the same hour. A backup is not an accessory — it is the half of the system that works when the other half cannot.
Parts and accessories
A service call usually ends with a new pump. Most of the time the dead component cost under forty dollars and has its own aisle.
Water alarms and leak detectors
A twelve-dollar alarm on the basement floor is the highest-value thing in this entire site. It cannot stop a flood. It can stop a flood from going unnoticed for two days.
Basement waterproofing
Most products in this aisle work exactly as described, on exactly one kind of problem. Spending money on the wrong one is the usual mistake, and it is an expensive one.
Crawl spaces
A crawl space is a basement with worse access and the same physics. Most of the mistakes down there come from sealing it before removing the reason it is wet.
Brands
Four manufacturers cover most of what a homeowner will ever install. They are not interchangeable, and they are not ranked — they are aimed at different pits.
Guides and troubleshooting
Every troubleshooting page here ends where the lead-generation sites stop — at the component that failed and what replaces it.
How this site works
Flow is always quoted with its lift
A pump's headline gallons-per-hour figure is measured at zero feet. Yours has to push water ten feet up and thirty feet out. Our content model cannot store a flow rate without the lift it was measured at.
We have not tested these products
There is no test bench behind this site and we will not pretend otherwise. Every specification traces to the manufacturer's documentation or a retail listing, and the source is printed at the bottom of the page.
No prices, anywhere
Prices move weekly. A number typed into an article in October is wrong by November, so every buy button goes to the live listing instead of to a figure we made up.
Every guide names the part
Most troubleshooting content stops at the diagnosis and offers you a quote. Ours names the component that failed and links the replacement, because you can hold most of them in one hand.
Start with these
What size sump pump do I need?
Two measurements and ten minutes give you a real answer. Almost everyone skips both and buys on horsepower instead.
The best sump pump check valves
A forty-dollar valve is the single most common reason a healthy pump appears to be failing. It is also the easiest thing in the pit to replace.
The best water leak detectors
No detector stops a leak. What it stops is a leak running unnoticed for two days, which is where almost all of the damage comes from.
The best basement waterproofing products, by problem
Almost every product in this aisle works. Almost every disappointment comes from using one on a problem it was never designed for.
Latest
- Gifts for a new homeowner, from the basement up
- Is water in the basement bad?
- Basement waterproofing cost
- Interior vs exterior basement waterproofing
- How to waterproof a basement
- How to seal basement wall cracks
- Where to place water leak detectors
- Do I need a battery backup sump pump?
- How long does a sump pump battery last?
- Sump pump freezing in winter
How this site is funded
Sump & Seal is a participant in the Amazon Services LLC Associates Program. When you buy through a link here we may earn a commission, at no additional cost to you. It does not change which products we recommend or what we say about them — the reasoning on every page stands on its own, and we say plainly where a cheaper option is the better buy.