Best Backup Sump Pump for Your House ( Review & Buyer Guide)

Editor’s Pick Buy on Amazon
Ground House Pick Buy on Amazon
Power Pick Buy on Amazon

Just like with any other appliance in your home, you certainly expect your backup sump pump to be reliable and efficient.

A backup sump pump may be your lifesaver if your basement is flooded, threatening to swamp the whole house.

Yet, the best backup sump pump comes with a couple more attributes (we will explain each of them down below).

Nothing compares to the peace of mind when it is raining heavily outside, and you are enjoying watching TV and your favorite show, being confident with the backup sump pump in your basement.

If this thought sounds fantastic, then you should stay with us for a couple of minutes.

A list of the best backup sump pumps is down below, while you can read more useful things about backup sump pumps in the continuation of our article.

Just lay down and enjoy reading our article.

Best Backup Sump Pump – 2020 Reviews

There are a bunch of backup sump pump models on the market.

Trying to figure out the best product yourself may be a bit confusing, especially because ordinary humans are not so familiar with the way sump pumps function.

That is why you got us – to research, review, and present the best backup sump pumps out there.

1. ESP25 Upgraded 12-Volt Battery Backup System by Wayne OUR PICK

Wayne definitely dominates the sump pump market with their products.

Before this model, they had two awesomely performing sump pumps, but they were a bit too pricey.

And then, Wayne launches this baby – the upgraded ESP25 sump pump.


  • Handles 2900 gallons per hour
  • Durable construction
  • Corrosion-free
  • Backup system activation alarm
  • Easy-to-read LED display
  • 1-year warranty


  • The alarm system emits a few seconds long beep, which may be hard to hear sometimes

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It provides 2900 GPH (gallons per hour), which is more than enough for a regular household.

If you don’t need an industrial-grade pump and less seepage, this ¼ hp sump pump will meet your home’s requirements.

Featuring an alarm, you would be notified about each time the backup system turns on.

Another thing Wayne upgraded about this sump pump is – they removed the plastic parts.

This new model has a cast-iron base and comes with an epoxy steel body, which tells you about the durability of the product.

As battery-powered backup sump pumps need occasional testing and checking on, Wayne built-in an easy-to-read LED display.

You can check on the system readiness at any time of the day.

This model requires a 75 Amperes hour battery, and you can find the exact compatible one at Wayne’s assortment as well.

The upgraded ESP25 sump pump is powerful enough to handle heavy rains and flooding, except for the most extreme conditions when nothing can help that much.

You don’t have to be a mastermind to know when it is the right time to switch the ESP25 on.

Only one float switch will do the magic.

Once the water level becomes too high, the backup system will turn on.

Just as its name says – this is a backup to your regular sump pump.

If it has difficulties with handling the water, the backup will come as a hand of salvation.

If you recharge the battery of the ESP25 fully, it would be able to keep the basement dry for about three days.

Power outages and handling extraordinary weather events are the ESP25’s specialty, and you can be completely carefree about flooding – there will be none!


2. RB 750-EZ Water-Powered Backup Sump Pump by Basepump GROUND-HOUSE PICK

Do you think water-based sump pumps are complicated to install?

Well, the RB 750-EX Backup Sump Pump will prove your wrong!

A seasoner DIYer would perform the installation in a couple of minutes, but it won’t take you much either even if you are a complete beginner.

Connect it to your home water supply with a push-fit pipe fitting included in the package.


  • Quiet when running
  • Includes plumbing parts required for the installation
  • Comes with a battery-powered alarm
  • Mounts on the ceiling and doesn’t take up much space


  • A bit pricey

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Customers appreciate the fact this pump should be mounted on the ceiling, which means – you can keep it in a clean and dry place until you need its help.

Another great this is its compact design. If you have a small basement, this one would fit perfectly.

It runs quietly, which may be important if you live in a ground-floor house.

This backup sump pump comes with a built-in Brass Dual Check Valve back-flow prevention device, which provides what we mentioned at the beginning of this article – reliability.

Basepump designed a backup sump pump that will bring back your state of mind in case you live in an area where it is raining heavily often.

Their backup pump includes a battery-powered high water alarm as well.

Just as you already know, this pump uses water pressure to pump water.

In terms of plumbing requirements, RB 750-EZ’s design meets most of the plumbing backflow prevention codes.

If you are looking for a very powerful and extremely reliable water-powered backup sump pump system, the RB 750-EX may meet your requirements.

As a cherry to the top, it doesn’t require constant monitoring, its battery won’t wear out with time, there is no chargers or monitors – such a relief.


3. Emergency Backup Sump Pump by Basement Watchdog POWER PICK

The Basement Watchdog Emergency Backup Sump Pump is more than a convenient solution for people living in areas prone to heavy raining and floods. Depending on the lift, it can pump 1000 gallons per hour (10 ft. of lift) or 2000 gallons per hour (0 ft. of lift).

We are talking about a powerful system that can run up to 6 hours continuously.


  • Great alarm system
  • Pumps up to 2000 gallons per hour
  • Easy-to-read display
  • Compact
  • Stainless steel construction


  • Battery not included

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This should be just enough for handling heavy rain conditions.

It is made of durable materials (stainless steel) and won’t corrode.

When it comes to installation, fit the Basement Watchdog backup pump next to the main AC pump and it will start pumping automatically once a power outage occurs when the main pump loses its capacity or fails for any reason.

When a problem arises, the pump will notify you through the alarm system.

You don’t even have to guess where the problem is, as the system will detect it itself and display it on a panel with an indicator light, thereafter solve the problem.

This pump is compact and easy to fit into narrow and small sump pits.

Note that battery is not included with this backup sump pump, which is an additional cost.

Yet, the system comes at an affordable price, so the battery won’t break your budget either.

Battery-Power or Water-Powered Backup Sump Pump?


When making a purchase of a backup sump pump into consideration, you should have in mind these two types.

Each of them has its advantages and drawbacks – depending on the plumbing system in your home, water volume your family needs, and a couple of less important preferences (same as your main system does).

Now, we will list the main attributes of each type of the backup sump pump, so you can get the idea which one meets your situation better.

Battery Backup Sump Pump

Battery backup sump pumps have a little bit longer history than their cousins – water-powered sump pumps.

Yet, many people prefer the battery type because of its simplicity of use. They are functioning according to a pretty straightforward concept. The main benefits of this type are:

  • They are versatile,
  • Quite powerful (pump up to 3000 gallons/hour),
  • Fairly straightforward installation.

Yet, the main drawback of the battery type is related to the battery itself, which is the only power source of this type of a sump pump.

Besides, you may get annoyed by their:

  • Run time limit (long power outages eventually make it impossible to recharge the battery, and the only solution here is to replace it),
  • The overall battery life of a battery sump pump is no longer than 5 years.
  • If you expect it to serve you well, you would have to run periodic tests on it and monitor the health of the battery regularly.

Water-Powered Backup Sump Pump

Once you get a chance to see a water-powered backup sump pump, it may seem too hard to understand and too complex.

It is true, guessing how this type of sump pump works is a bit tricky – but this doesn’t seem it is really that perplexing.

What is more, the way of functioning is rather simple.

These pumps generate suction by running water through a pipe at high speed, thereafter empties the sump pit. A water-powered sump pump has a couple of awesome attributes:

  • You won’t have to monitor the battery all the time,
  • They can run for an indefinite period of time.

A water-powered sump pump depends on your home’s municipal water pressure, we can suppose it will long as long your home is supplied with water (potentially forever).

These pumps are just perfect for people who don’t want to have the pressure of maintaining, replacing the batteries, checking the charger all the time, etc.

On the other hand, if you have a vacation property, this may be the best solution as well.

Yet, this doesn’t mean a water-powered sump pump is recommended for the use in all properties.

This is the main disadvantages of this type are:

  • Homes using wells can’t use water-powered pumps,
  • They pose certain plumbing requirements to work properly (in terms of water pressure, pipe types, and water flow rates),
  • You can’t expect as high pumping volume as with the battery sump pump,
  • They are slightly more complicated to install.

Note: When installing a water-powered backup sump pump, you would have to perform the installation that way that the way of installing it prevents backflow of sump pit water into your drinking water source.

Do You Really Need a Backup Sump Pump?


Men would probably say the television and microwaves are house appliances that must be ready 24/7, women would go for hairdryers and irons, and kids always vote for the Internet connection. Yet, the truth is – this all falls back into the background in comparison to the backup sump pump.

Yes, it is located in one of the least favorite parts of your home, but this appliance contributes to your and your possessions’ safety.

A backup sump pump is in charge of your home’s water management strategy.

This is why it should be a priority to have a fully-working, reliable backup in your basement.

Your sump pump may lose its power, face a switch failure, have difficulties handling high water capacities, experience a blockage of the discharge pipe, etc.

Yet, a backup sump pump jumps in when you need it the most – to backup and solve the situation.

You can always know if there is an issue in the basement, as backup sump pumps come with a reliable alarm system to notify you about an emergency.

The main sump pump can pump 30 to 60 gallons per minute, while backup can handle 10 to 20 – bear that in mind.

However, no matter how good level of protection your regular sump pump provides, having a fully-ready backup is always a great idea.

Our Choice

Even though some people neglect the importance of having a quality backup sump pump to save the day when it is raining heavily, we know you are fully aware of the risks you would take in case you don’t have the best pump in your basement.

In case you need our advice about the best backup sump pump you can purchase, we can suggest a product that provides full support and great value for the money.

We are talking about the ESP25 Upgraded 12-Volt Battery Backup System by Wayne.

Great power capacity, durable construction, it comes with a warranty – what else can we ask of a sump pump?


The power of a rainstorm can make your regular sump pump collapse.

What can you do to prevent flooding of your whole basement, and potentially your whole house?

Well, you should think ahead.

If you have a backup sump pump installed, then you can be carefree about your safety and your home’s condition.

We reviewed three of the best-rated products on the market, and it is up to you to make a final decision which one of them is the best backup sump pump for your home’s needs.