Keeping Well Water Flowing During a Power Outage With a Well Pump: Generator-ready Pumps for Outage Backup

Our Verdict and How We Chose

If your well pump has to carry a house through a power cut, the deciding detail is the well depth and not the outage itself.

The Septic Tank Submersible Pump is the fit for a standard 4-inch well when you want 26 GPM and a 33FT cord in one package. Choose the STA-Rite SNC-L Shallow Well Jet Pump if your setup favors a shallow-well jet design with a 1″ NPT discharge. Choose the XtremepowerUS Deep Well Submersible Pump if you need 1 Horsepower and thermal overload protection for a deeper well. We screened 107 Well Pumps and compared 10 here at Predicament Measures for outage-ready water flow; the shortlist runs from $119.99 to $215.99, and the median price of the 10 products in our comparison is $160.99.

The 33FT cord is the practical detail that separates this pick from the jet pump here. It suits readers who want a submersible option without moving to the more expensive end of the shortlist.

You can find more technical details in our full RJS-100-PREM spec breakdown.

Full Comparison Table of Well Pumps during a Power Outage

Prices are approximate and move frequently – check the current price before deciding. “Not stated” means the manufacturer listing does not give that figure – we do not estimate it.

Among our top picks, XtremepowerUS Deep Well Submersible Pump is the value leader, and that matters here because lower cost per horsepower helps when you need backup pumping during an outage.

Each Pick during a Power Outage, Reviewed in Detail

The 3 picks below run from $119.99 to $215.99, reviewed in rank order.

Septic Tank Submersible Pump

A power outage leaves you wanting steady water from a well that still has to serve showers and sinks. This submersible pump gives you 26 GPM and 138 feet of head, so the flow figure and lift figure both support that kind of backup use.

What we like: The 1/2HP motor sits at the common floor for usable household well service, and the 1-1/4″ discharge gives it a larger outlet than the jet pump below. Its stainless steel construction and 33-foot cord add practical detail for outage planning, and the listed $215.99 price keeps the total pump cost in the middle of this group.

You also need a 4-inch well or larger, since the pump diameter is stated at 4″.

STA-Rite SNC-L Shallow Well Jet Pump

A shallow well with a generator plan is the setting where a jet pump can make sense during an outage. The SNC-L uses 1/2HP and a 1″ NPT discharge, so it suits simpler shallow-well setups rather than higher-lift jobs.

What we like: This model is the least expensive pick here at around $165.99, which matters if you are building a backup setup on a tighter budget. The cast iron body, pressure regulator, and 115v/230v support give you a straightforward shallow-well option, and the 1/2HP motor still sits at the common household floor.

Keep in mind: The discharge is smaller than the 1-1/4″ outlet on the submersible pick, so it is the less flexible choice for larger-demand backup service. Its shallow-well design also makes it the wrong fit for deeper wells.

XtremepowerUS Deep Well Submersible Pump

When the well is deeper and the outage plan depends on stronger lift, a deep well submersible is the better type to look at. This pump states 1 horsepower, 33 GPM, and 213 feet of head, which gives it the strongest lift-and-flow mix in this group.

At around $119.99, it is also the lowest-priced pick here while still listing the highest flow rate among these three.

Keep in mind: The 1″ discharge is smaller than the 1-1/4″ outlet on the Septic Tank Submersible Pump, so fitting and plumbing need to match that size. If your setup is shallow and simple, the jet pump may be the more direct match; if your well is deeper, this is the stronger fit.

For a budget-friendly option, look at how the 1/2 HP Well Pump performs.

What Each Job Takes, Worked Out for These Picks

Each row is a job this page’s buyers ask about, worked out from each pick’s listed maximum head and maximum flow rate and horsepower and a typical need for the job.

What each job takes is a typical figure, not a manufacturer claim, and every result is worked out from the pick’s listed specifications. Check your own job against them before you order.

Who Buys Well Pumps, and What It Really Costs

Detailed performance metrics are available in our review of the MA0414X-7A.

What These Well Pumps Need, and What to Check on Arrival

Power backup needs before the pump starts

Power is the first requirement, because none of these pumps works during an outage without a generator, battery backup, or inverter that can start the motor and keep it running.

• Septic Tank Submersible Pump uses a 1/2HP motor, so your backup source needs to cover a 1/2 HP start and run load.
• STA-Rite SNC-L Shallow Well Jet Pump also states 1/2HP, so it needs the same 1/2 HP backup capacity before it will run.
• XtremepowerUS Deep Well Submersible Pump states 1 Horsepower, so plan for a backup source sized for 1 HP rather than a lighter setup.
• STA-Rite is a shallow well jet pump, so you also need priming before it can start pumping; the two submersible picks do not state that requirement.

Arrival checks for outage-ready well service

Cover differs by seller and country, so the first check is the fit and connection details that matter for a well pump.

• Confirm the discharge size first. Septic Tank Submersible Pump uses 1-1/4″ FNPT, while STA-Rite SNC-L Shallow Well Jet Pump uses 1″ NPT and XtremepowerUS uses a 4-inch body with no discharge size stated here.
• Check the well diameter and drop pipe path. Septic Tank and XtremepowerUS both state a 4-inch pump diameter, which matters because the pump and piping must fit the well opening and the drop pipe route.
• Look for the power cord length if your setup needs a long run. XtremepowerUS states 100ft, Septic Tank states 33FT, and STA-Rite does not state a cord length.
• Verify whether your setup needs a pressure tank and pressure switch. A pressure tank reduces short cycling, and a pressure switch controls pump start and stop; STA-Rite includes a pressure regulator, while the other two do not state either part.

On arrival, match the outlet size, cord length, and pump diameter to your well parts before the return window closes.

Consider exploring the alternatives to a traditional well pump if you need different water solutions.

Buying Questions About Well Pumps during a Power Outage, Answered

How many gallons per minute do I need to keep my house supplied during a power outage?

For a house supplied during a power outage, 15 to 25 GPM is the practical range to watch for several fixtures at once. Septic Tank Submersible Pump states 26 GPM, and XtremepowerUS Deep Well Submersible Pump states 33 GPM. The first also has 138ft of head, which helps when the well needs more lift.

What pump horsepower or pressure rating do I need for my well depth and plumbing setup?

The pump horsepower or pressure rating you need depends on well depth and the lift your plumbing requires. The 1/2HP Septic Tank Submersible Pump suits the common floor for usable household well pressure and flow, while the 1 Horsepower XtremepowerUS gives more room for deeper lift and longer runs. STA-Rite SNC-L is also a 1/2HP option, so the decision turns on head and discharge size rather than horsepower alone.

What extra parts do I need for backup operation, like a pressure tank, controller, transfer switch, or check valve?

Backup operation often needs more than the pump, and a pressure tank or transfer switch is not stated for any of these picks. XtremepowerUS Deep Well Submersible Pump does state a built-in check valve, and that can simplify the outlet side of the setup. Freeze protection matters in cold weather, because outage use can happen when standing water in exposed lines is a problem.

Will this pump still work if my well is deep or my water level drops during a long outage?

Yes, if the pump’s maximum head matches the lift your well needs and your water level stays within its operating range. XtremepowerUS Deep Well Submersible Pump states 213 Feet of head, and Septic Tank Submersible Pump states 138ft; both are relevant when the well is deeper or the water level drops during a long outage. A shallow-well jet pump like STA-Rite SNC-L is the weaker fit for deep lift, because its listing does not give a deep-well head figure.

New users should start by learning how a well pump works and functions.

Who Should Skip These Well Pumps

If your well needs 1 HP or more for longer runs and higher lift, these three are the wrong tool. They center on 1/2 HP or 1 HP, so they do not cover the deeper-well or heavier-demand setup that a larger system calls for.

You should move to a deeper-well pump guide or a higher-horsepower submersible well pump class instead. If your main issue is a generator-backed setup, see best well pump to run on a generator. Choosing the wrong pump can waste money and still leave you without usable pressure at the tap.