Best Little Giant Sump Pumps Reviewed

Little Giant Sump Pumps Compared

Why Choose Little Giant?

When choosing a sump pump that will protect your basement from flooding, you expect the best in the business. Little Giant provides its customers with the best customer service and warranty available. Little Giant offers a 2-year warranty on all of their sump pumps. They offer the best customer service, so if you ever have any issues, you can place a call to them for assistance. 

Another helpful feature that Little Giant offers is its internal diaphragm float switch. It allows or automatic control of sump pumps in water. It is designed to operate in small spaces and sump pump chambers. It detects when the water level is excessive and automatically turns the pump on to remove it.

Little Giant also offers many different accessories that other companies don’t provide. They offer float switches, pressure switches, and check valves so that you can get the most out of your sump pump. You can find a detailed list of accessories in the buyer’s guide below.

Little Giant Sump Pump Styles and Material Types

Styles

Materials

1. Little Giant GIDDS-521252 12393

Some customers may be on the hunt for the absolute best model available. I chose the GIDDS model as the best Little Giant sump pump on the market. It performed extremely well, and it sits nicely at that midrange in terms of power and price.

This model is fully submersible, which makes it quiet. You won’t be able to hear it once it clicks on to dispel wastewater. It features an automatic pump so that you will never have to worry about manually switching it on. It will protect your basement from flooding without you ever being aware of it. The ⅓ HP motor is capable of moving 2760 GPH of water. This motor size is ideal for light to moderate basement flooding. The ½ inch NPT discharge will allow small debris to pass through.

2. Little Giant WE20G05P4-21

If you are searching for a more powerful model than the previous one, then this is a good place to start. I chose the WE series unit as the best ½ HP Little Giant sump pump. It also differs in that it is a high head device. They are designed for deeper water applications up to 160 ft.

The WE series model is submersible like many other Little Giant sump pumps, but it is designed for deeper submersion. This model can be used as a sump pump for your basement. It can also be used for ornamental fountains, sprinkler systems, and other deep water systems.

It is not an automatic sump pump but is switched on by a manual switch. It comes with a 1 ¼ inch NPT discharge, which is slightly smaller than other models. It will allow only minor debris to pass through. The ½ HP engine will dispel 1200 GPH when submerged at 100 ft. I was impressed that the pump could still move water at great depths without taking forever.

3. Little Giant 508158

Many people that are reading this buyer’s guide may need a unit that is designed for heavier flooding or business use. I chose the Little Giant 508158 model as the best for light commercial use. It is ideal for plumber’s or water irrigation specialists that need a high powered pump for water transfer applications.

The 8-series model features a 0.4 HP motor that can move water quickly and efficiently at 2700 GPH. While the motor is smaller than the previously reviewed models, it still delivers the transfer speed that many users need. The epoxy coated cast iron casing is designed for continuous use even at high temperatures. It features an automatic float switch design that will run without interference.

The 1 ½ inch NPT discharge is capable of moving small to medium size debris through. Like the models above, it is also submersible. It can be used in sump pits, pools, or water fountains. One feature that I liked about the 8-series units was that it could run continuously for years without any mishaps. Many users reported continuous use for more than 10 years.

4. Little Giant 506160 51979

This model, like the GIDDS model above, comes with a slightly smaller motor than other products. I chose the 56160 unit as the best ⅓ HP Little Giant sump pump. At this amount of horsepower, you will be able to move water quickly and effectively. It is not a high head model like product 2 on our list, so it should not be used for deep water situations.

This model is able to continuously move 1740 GPH with ease. It has the same cast iron body as the products above, so it should last for many years without replacement. It is submersible up to 18 feet, which makes it ideal for sump pits to move water out of your crawl space.

The integrated float switch will turn on the pump at 7 to 10 inches, then switch it off at 1 to 4 inches. If you need a sump pump for basement flooding, then this model will suit your needs perfectly. It moves water from the sump pit to the drainage system without me even being aware of it. The operation was very quiet.

5. Little Giant 505025

You may want to avoid the heavy and bulky pumps that are sometimes offered by manufacturers. The 505025 model is the most compact Little Giant model available. It is made of lightweight aluminum so that it can be easily submerged. It is small enough to fit easily into any size sump basin.

This utility pump comes with a 1-inch NPT discharge, which is smaller than the other models I reviewed. If you expect to encounter a lot of debris during water transfer, then you will need a model with a larger diameter. While the aluminum housing is lightweight, it may not be as durable as the cast-iron models.

For such a compact device, it is still capable of moving 1200 GPH. One unique feature that I liked was the removable mesh screen. It was so easy to clean and maintain. The compact size also made it easier to install and maneuver.

6. Little Giant 506274

Every user wants to get the most for their money. Even if you are on a budget, this model would be great for you. I chose the Little Giant 506274 as the best value for money model available. It will serve your needs and also not break the bank.

This unit, like the other models I reviewed, is submersible up to 18 feet. It is perfect for shallow applications, but should not be submerged in deep water. Just like the second product on my list, it is a manual switch pump. It is ideal for ornamental fountains and decorative fish ponds.

It comes with a 1 ½ inch NPT discharge that will allow most small solid materials to pass through. The ⅓ HP motor can move an impressive 2760 GPH. This product impressed me with its power and affordability. The amount of water it could move through my high-pressure sprinkler system was unmatched. The manual switch operation was more suitable for fountains than sump basins.

7. Little Giant 505700

Many people reading this buyer’s guide are likely searching for a new pump for their basement sump basin. If you fall into this category, then this unit is ideal for you. The 505700 model is the best Little Giant submersible sump pump. It can be submerged into any sump basin to remove floodwater.

This model features an automatic pump. The sump pump will turn on at 7 to 10 inches and turn off at 2 to 5 inches. The integral diaphragm switch is not adjustable. It features a 1 ¼ inch NPT discharge that will allow solid materials of ⅜ inches to pass through with ease.

The thermoplastic housing will dissipate heat, but it may not be as durable as cast iron models. I thought that this model was ideal for submersion into sump basins. The automatic shut switch will ensure that your basin is free of water at all times. During a heavy rainstorm, the pump came on to dispel excess water, and it was really quiet.

Comparing Little Giant to Other Brands

Essential Little Giant Sump Pump Parts

Sump Pump Float Switch

Pressure Switch

This product will detect the amount of pressure that your sump pump is underwater. It recognizes that the water pressure is too high, and it will activate the pump. Some Little Giant models are rated for maximum water pressures, so check the spec sheet before purchasing.

Check Valve

This part ensures that the sump pump will only allow water one way through the pipe. It ensures that no water flows back into the sump basin. It is sometimes referred to as a one-way valve.

Battery Backup System

Pump Stand

This allows the sump pump to sit in the basin more securely. You don’t want to put your Little Giant sump pump directly down into the basin. It can cause the motor to overheat. These stands provide a secure platform with more ventilation.

Water Level Alarm

Sump Pump Installation

Now that you have picked out your new pump, you need to get it installed so that you can keep your basement free from excessive water. If you have some knowledge of plumbing and are pretty handy, then you can install the Little Giant sump pump on your own. Follow the instructions below to have your sump pump up and running.

If you are unsure of how to install your Little Giant sump pump or don’t want to take a risk, then I recommend calling a plumber for installation. The average cost is around $550 to $1,000, depending on location and type. You can find free quotes from your area by filling in the form below.

Troubleshooting and Maintenance

Little Giant sump pump won’t shut off

Failed Little Giant sump pump pressure switch

Sump pump clogging

People Also Ask (FAQs)

How long do Little Giant sump pumps last?

They should last around 10 years without having to replace any parts. Little Giant offers a 2 or 3-year warranty on all sump pumps, but most customers have not experienced any problems within that time frame.

How do I know what size sump pump to buy?

You will need to assess the amount of flooding that you experience each year. Under normal circumstances, most customers can invest in a ⅓ HP sump pump. This will eliminate most wastewater from your basement without any issues. If you plan to use the sump pump for an ornamental fountain or other systems, then you should invest in a larger model.

Do Little Giant sump pumps make noise?

The submersible units will not make as much noise as the pedestal models. Since they are submerged underwater, the water masks most of the sound. If you plan to place it in your basement, then you will not hear much sound from either type of pump. If you are going to use it for a fountain or decorative fish pond, then you may hear some ambient noise outside.

Are pedestal sump pumps better?

Pedestal pumps are easier to work on and maintain than the submersible pumps since they are above water. They are generally louder, but they operate in a similar fashion. Pedestal pumps are often manual, while submersible pumps are usually automatic.

Is it ok for a sump pump to run constantly?

Yes. Little Giant makes many sump pumps that are designed to run continuously. Pumps that are designed for automatic use can be run constantly. They are perfect for pools, fish ponds, or fountains.

Should I unplug my sump pump in winter?

You do not need to unplug your Little Giant sump pump unless you experience a problem with the unit.

What is the Little Giant sump pump warranty policy?

Every Little Giant sump pump comes with either a 2 or 3-year warranty. It covers all manufacturer defects within that period. Any user malfunction or installation defect will not be covered under this policy.

Can I add a Little Giant battery backup sump pump system to an existing sump pump?

Where is the best place to buy Little Giant sump pumps?

I recommend shopping on Amazon for all of your Little Giant sump pumps and parts.

Conclusion

In this article, I have reviewed the full range of Little Giant sump pump units. As you can tell, there are a lot of products to choose from. Make sure that you follow this guide to select the model that suits you best. If you are searching for the best of the best product, then I highly recommend the Little Giant GIDDS-521252 12393.

It comes with everything that you need to keep your basement free of water. You can even use it in a decorative fountain or fish pond since it is fully submersible and automatic. The powerful ⅓ HP motor can move 2760 GPH anywhere at any time.