Best Water-Powered Backup Sump Pump

Having a flooding basement can be traumatizing, especially if your area is fond of power outages. But not anymore, with the best water-powered backup sump pump, you won’t be wondering about electricity. You will always have peace of mind whenever you go for a holiday or vacation. Some sump pumps, however, are more effective than others. And when it comes to getting rid of water in your basement, you won’t want to settle for anything less than the best. Here’s a guide on the best water-powered backup sump pump. Read on!

How Do Water-Powered Sump Pumps Work?

A water-powered backup sump pump is a house’s basement protection. If your primary sump pump fails and you have a base pump installed, the water level in your pit begins to rise steadily. Then the high-water pressure extends past the idle pump’s float setting off the float of the water-powered pump.

When the float is activated, a check valve in the base pump opens. This valve distributes a large volume of water from the home’s municipal water supply via the ejector. Afterward, the water is discharged. The sump pump completes the cycle and clears the sump pit. The operation is repeated until the water level returns to its usual level.

Water Powered Backup Sump Pumps vs. Battery Backup Sump Pumps

When considering which type of sump pump is the best, we must first understand that both sump pumps are not usually used for the same purpose. Instead, they’re much different in some scenarios.

  • Water-powered backup sump pump

There’s no need for a battery. As a result, there is no worry that it would run out and offer unlimited backup. Besides, it’s considerably more dependable. However, the pump is more expensive than other models among other disadvantages.

It’s ideal for household usage due to its power in supplying water and simple installation techniques. The most crucial aspect is that you do not require constant power; however, the worst-case situation is that the pump runs out rapidly.

1. Liberty Pumps SumpJet Water Powered Back-Up Pump, SJ10

Image credits: Liberty Pumps

For water powered backup sump pump that comes with a compact design, count on the Liberty Pumps SumpJet SJ10. This sump pump’s structure is incredibly small and simple to carry. Yet, despite its small size, the product is highly efficient. It can remove about 2 gallons of sump water. Besides, you can easily run this pump using your municipal water supply. Moreover, the device is entirely automated, and it does not require any power to operate. 

The pumping performance of this device is determined by the pressure of the inlet water source. Also, this is the responsibility of the pumping head. It can handle input supply pressures ranging from 20 PSI to 100 PSI. Additionally, the device is UPC-approved, so you will never be dissatisfied with it. Besides, the best part is that it has an adjustable hose clip for easy mounting, plus the hose clamp is constructed of stainless steel to ensure high quality.

For extra security, the sump pump has additional backflow protection installed. Also, the built-in screen with the detachable foot valve is high-grade. Therefore, you can rely on the quality of this product because it is made of long-lasting PVC, and there is no risk of damage. Conversely, the device’s maximum fluid temperature is around 130 degrees Fahrenheit. And it comes with a 2-year warranty to ensure that you get a high-quality product for your money.


  • Comes in assembled; you only need to install it
  • Durable water powered sump pump
  • Good value for money
  • Highly efficient
  • Comes in fully assembled; you need to install it following the manual instruction
  • Releases about 1,185 gallons of water per hour.


  • You can’t use a lid that’s conventional
  • A bit noisy

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2. Superior Submersible Sump Pump, 92900

Image credits: Superior Pump

Superior Backup Submersible Sump Pump can remove 1380 gallons in a single hour due to its high holding capacity and thermoplastic material. Besides, the device has passed the manufacturing test. It has an auto-on/off mechanism with high-quality gauges and an innovative design. Therefore, you can count on it in the long run.

The sump pump set is inexpensive, simple to install, long-lasting, and dependable. Besides, even if you aren’t in an emergency, such as a switch breaker has tripped, the supplies are ready to serve you. However, avoid using automobile batteries unless there is an emergency.

The sump pump can elevate water to a height of 25′ vertically. Though the material appears to be good in every way, it is not without limitations. According to reports, the device isn’t altogether promising. Some consumers usually find an issue with its’ durability, alarm system and even complain regarding customer service.


  • Easy to install and use
  • It comes on a fair pricing
  • Handy in non-emergencies too
  • Remove 1380 gallons in a single hour


  • Some customers complain of having to turn off the water alarm manually

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3. Basepump Premium Water Powered Backup Sump Pump, HB1000-PRO

Image credits: Basepump Premium

This Basepump Premium Water Powered Backup Sump Pump, HB1000-PRO, offers the highest pumping rate in the sump pump industry. However, when it comes to pumping rate, you need to pay attention since a high pumping rate yields a better result. Conversely, the backup sump pump features a backflow preventer with a dual check valve. And as a result, it’s double-checked to ensure that there’s no backflow. The best thing about this device is that it doesn’t need to be charged, making it an economical option. Additionally, it doesn’t require electricity since your home’s water power supply pressure is sufficient to power and operate it.

The sump pump has an ALARM for your protection. The alarm is battery-operated and will come in handy when you think you’ll forget about your sump pump. This kit also includes a brass cutoff valve and push-in pipe fittings with a no-sweat feature. Moreover, the device can perform well with Radon Sealed Systems.

You can conveniently mount this sump pump on the ceiling or high above the sump. It can remove more water than standard sump pumps on the market. Conversely, the installation is straightforward for everyone with the help of the guide.


  • You can mount it on the ceiling or high above the sump
  •  No or less maintenance is required
  • Easy to install
  • Don’t require electricity
  • Lightweight model


  • Not very durable
  • Not functional in case of a water problem

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4. Zoeller FLEX Series (540-0005) Water-Powered Back-Up Sump Pump

Image credits: Zoeller

Zoeller Flex Series 540-0005 Water Powered Backup Sump pump is an outstanding model since you can install it horizontally or vertically. In addition, it doesn’t require electricity or batteries to operate. Therefore, this sump pump is capable of preventing floods in your basement. Besides, it can prevent floods even if electricity is down for an extended period.

Additionally, the float mechanism is very effective. But, conversely, the pumping speed is extremely fast, capable of pumping water at 1200gph, and the product’s efficiency is enthralling. Besides, this is a great machine that can give you peace of mind while on vacation if there’s a power outage. Also, the design is outstanding. Plus, the device is reasonably priced.


  • Convenient to install
  • You can install it horizontally or vertically
  • It doesn’t require electricity or battery to operate
  • It comes with a 3-year warranty


  • It wastes a lot of water

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5. Zoeller Homeguard Water Powered Emergency Backup Pump System, 503-0005

Image credits: Zoeller

The best thing about water-powered sump pumps is that they do not require any energy and are powered entirely by water, and the Zoeller Homeguard Water Backup Pump System, 503-0005, is not exceptional. Therefore, even if there is a power outage, you will see that this pump is still operational. Besides, if you already have a sump pump, you may connect it and use it. 

Although the sump pump manufacturers do not allow you to operate with different branded sump pumps in most circumstances, this brand will enable you to profit from both branded sump pumps. Furthermore, this sump pump is non-corrosive is something to go for. Therefore, if you’re concerned about corrosion, you should forget about it and go on! The reason being this product is made of PVC. And PVC construction ensures that the product stays non-corrosive.

Furthermore, the float rod included with this kit is made of stainless steel. Since you will be working with water, you should get stainless steel equipment that will not rust when exposed to water. Conversely, this sump pump can quickly remove more than 2 gallons of water, up to 20 gallons each minute.


  • Displaces around 1,200 GPH
  • Compatible with other Zoeller pumps and most other brands
  • Effective with a check valve
  • Lightweight model


  • Not easy to install

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Factors to Consider Before Buying the Best Water-Powered Backup Sump Pump

1. The size of the pump

The size of the pump is a crucial factor to consider. Though most of the pumps are made lightweight, they have different types of dimensions. To be more compact, most of the suction pipes had to be positioned at a higher level, such as the ceiling. Besides, determining which size is fit is dependent on the size of your sump pit and basement. Therefore, you can estimate the size of the suction pump you need by analyzing the size of the two.

2. Water pressure

Before investing in the best water-powered backup sump pump, you must consider the water pressure. All suction pipes are usually designed to require a certain amount of water pressure to function properly. So, what if you have more than needed? Then, the device will supply extra service too. However, without the minimal pressure required by the material, the pump will not even start.

What pressure your devices need must be specified on the box. Your water supplier will be able to tell you about the impact of your water supply. Alternatively, you may acquire a low-cost gauge and test the pressure yourself. The gauge is available at local hardware stores.

3. Installation

Before buying the best water-powered sump pump, consider how easy it is to install. Every pump manufacturer says that the owner may readily install the pump. However, you can tell how terrible it is for the customers if you read the comments section on any review page. Only an expert may fully appreciate installation.

Therefore, you should look for assembled sump pump so that your installation part can be little to do. Besides, if you have plumbing skills, you can handle the installation in a day or less—furthermore, several installation tutorials on YouTube on several products for your convenience. Watch the videos on installing a sump pump. 

4. Noise prevention

Suction pipes that function as backup might be either noisy or silent. Some customers like their sump pump to be quiet, while others prefer it to be as loud as possible. You may be wondering, “who wants noise pollution?” 

The reason for wanting it to be noisy is so the owner can tell when the suction pump is working. Most sump pumps are cleverly designed. They create noise to notify you that it’s operating, but it sounds like an alarm. Fortunately, you may inspect the items before purchasing to ensure comfort.

5. GPH 

GPH usually refers to Gallons Per Hour, one of the most important aspects of buying a sump pump. Therefore, it is necessary to understand how much water a pump can discharge in gallons per hour. How will you determine which GPH is best for you? 

First, you must ask yourself how much water you need to remove from your basement. According to a preliminary calculation, one inch of water in a sump pit of 18″ diameter equals roughly one gallon.

Let’s do some calculations to get a basic idea.

Wait for your electric pump to shut off on a wet or stormy day. Then, insert a yardstick into the ground. Hold the stick correctly for one minute. Take note of the rise in water level. Then multiply the change in the water level by 60

You can now estimate how many gallons of water enter your sump pit every hour. If the water level increased from 2 to 10, the increase is 8. Therefore, multiply 8 by 60 to obtain 480. We can conclude that around 480 gallons of water are coming in every hour.

6. Drainage

You need to consider what is next after your backup sump pump has sucked water. What is the final destination of the discharge water?

There are two options. One option is to connect the backup pump to the current pump used for discharge, making installation easier. The other option is installing a conduit that will solely be used for outflow from this sump pump. This solution is best for larger projects. However, most people choose the second option. Who wants to connect the backup system to a potentially problematic discharge pipe?

7. Sump pump efficiency

Another important factor to consider when buying the best water-powered backup sump pump is efficiency. Most pumps usually use one gallon of water to release or discharge one to two gallons of sump water. The water utilized is municipal water; therefore, you need to remind yourself that you are responsible for using public water and make a preliminary estimate of your profit and loss. Besides, when it comes to keeping the house basement dry, most customers are always prepared to pay a little extra on water bills.

8. Source of water

Your water line should be connected to a municipal water line. This suction pipe backup is not for you if you’re using a well. You will not be able to use the pump—the technical explanation for how the water pressure sump pump’s function is complicated. In a nutshell, the pump operates under continuous water pressure, and a well is incapable of providing constant water pressure. As a result, the pump requires a water supply from the municipal.

9. The amount of water expected.

Due to the sump pump varying sizes, they can manage a variety of water quantities measured per hour. And though the water power suction pipe serves as a backup, it may discharge the right volume of liquid. Besides, the amount will always be indicated on the package. Therefore, you should pay close attention to the packing! Ensure the sump pump you’re purchasing can manage the amount of water you expect.

10. Price

Last but not least, consider the price since these sump pumps come at various costs. The most reasonable pricing would be between $150 and $300. However, it’s not always the case that the most expensive suction pump is the best, and the least costly will offer substandard service. Therefore, you have to purchase the one most suited to your home after researching features and efficiency. Besides, It’s not wise to rely on the brand and advertising.