sump pump for hot tub

Best Sump Pump for Hot Tub: Top 6 for Draining water in 2024

Last Updated on May 17, 2023

Draining water from a hot tub may seem like an intimidating undertaking but with the help of a sump pump, the process can be expedited significantly. To ensure that this job is executed flawlessly, investing in the best sump pump for hot tubs is imperative.

Be aware that sump pumps vary in quality, and certain features and specifications are essential for their optimal performance.

The most crucial aspect is to find a pump with adequate power and flow rate to drain water from the hot tub effectively. Additionally, the sump pump should be equipped with thermal overload protection.

To deliver optimal convenience and versatility, it should feature both automatic and manual operating options. Also, investing in a pump made from durable materials is crucial to ensure longevity and reliable performance.

The power cord should be sufficiently long to effectively reach necessary outlets without compromising safety.

Another significant characteristic of an ideal sump pump is its ability to operate quietly. Ready to make your hot tub water drainage dreams a reality? Check out our top 5 sump pump reviews for the perfect solution.

Green Hot Tub Sump Pump

Powerful submersible pump with automatic and manual operation

Output Power: 1/3 HP
Volts/Hertz: 110-120V/ 60Hz
Material: Plastic
Power Source: Corded Electric
Maximum Flow Rate: 2000 GPH
● Power Cord Length: 25 Feet

Lnicez Hot Tub Pool Cover Sump Pump

Super quiet sump pump with temperature control and manual shut off feature

Output Power: 1/10 HP
Volts/Hertz: 110V/60HZ
Material: Thermoplastic
Power Source: Corded Electric
Maximum Flow Rate: 850 GPH
Power Cord Length: 25 Feet

SurmountWay Sump Pump for Hot Tub Drainin

Durable and affordable pump with thermal and overload protection

Output Power: 75W
Volts/Hertz: 115V/60HZ
Material: ABS
Power Source: Corded Electric
Maximum Flow Rate: 850 GPH
Power Cord Length: 25 Feet

Table of Contents

Reviews of the Top 5 Sump Pumps for Draining Hot Tub

Ultimately, the sump pump you choose makes all the difference in draining your hot tub’s old water. Before committing to a purchase, it pays off to examine product specifications and features carefully.

Understanding what different pumps offer can really come in handy when trying to decide which one is right for you.

To make things easier, we’ve reviewed the top 5 sump pumps specifically designed for draining hot tubs. So check them out before making an informed choice that may save money down the line.

1. Green Hot Tub Sump Pump

Green Hot Tub Sump Pump

Ready to tackle the job of draining your hot tub with confidence? The Green Expert sump pump is a powerhouse – equipped with an ultra-efficient motor and durable construction, it can take on even the trickiest tasks. Let’s explore this top product and see why it’s so highly sought after.

Efficient and High-Performance Motor

This trusty machine packs a punch, its 1/3 horsepower output power helps move unwanted water away in no time.

And you won’t have to be concerned about overheating either: it’s equipped with thermal overload protection so that, even after extended use, this protective pump will keep running strong.

Maximum Flow Rate of 34 GPM

With a maximum flow rate of 34 gallons per minute, the Green Expert Sump Pump can handle even the largest hot tubs. Say goodbye to clogged filters and dirty water with this high-performance sump pump in your arsenal.

Last-Inch Drain Design

This powerful pump will remove every drop of your wet woes, nothing can escape its advanced suction that goes all the way down to 1/25th inch.

No more leaving puddles behind. This clever device automatically shuts off after just 15 seconds if there’s no water covering it. So you don’t need to worry about mopping up afterward, either.

Convenient Automatic and Manual Operation

With two different settings, this sump pump is built for convenience. You can set it and forget in the automatic mode, which is ideal when your hot tub needs a water level reset.

For those times when precision matters, manual operation gives you control over every step of the pumping process.

Plus, there’s no need to guess. An included sensor switch ensures everything runs smoothly with minimal effort from you.

Lightweight and Portable

You can effortlessly move this hot tub pump from room to room with its lightweight design. Plus, a generous 25-foot power cord makes it great for long-distance use – providing safety and convenience wherever you need it.

Safety Guaranteed with UL 778 Standard

Safety is a top priority for sump pumps, and the Green Expert pump is designed with UL 778 Standard to provide the highest level of safety. This standard ensures that the water pump has passed rigorous safety tests and is safe for use.

Positive Aspects:

  • 1/3 hp output power is perfect for most hot tubs
  • Thermal overload protection ensures safe operation
  • Safe to use, automatically turns off when no water is detected
  • Compact and easy to install
  • Durable construction for long-term use
  • Automatic and manual operation modes for your convenience
  • Water sensor switch for ease of use
  • 25 ft long power cord for safer use


  • The sensor may weaken after a long term of use

2. Lnicez Hot Tub Pool Cover Sump Pump

Lnicez Hot Tub Pool Cover Sump Pump

The Lnicez Submersible Sump Pump, our esteemed runner-up choice, truly stands out in the market due to its remarkable fusion of top-notch performance and near-silent operation. Here’s what you need to know about this exceptional product:

Efficient and Super Quiet

The Lnicez sump pump is a high-quality submersible pump that operates silently, ensuring peace and quiet while in use. Despite its quiet operation, it provides an impressive 850 gallons per hour maximum flow rate, making it easy to hot tub’s drain.

High-Quality ABS Casing

Made with ABS material, the casing can withstand harsh pool chemicals and extreme temperatures, ensuring durability and longevity.

Compatible with Different Water Nozzles and Hoses

The Lnicez sump pump comes with various water nozzles and hoses, so you can choose the perfect fit for your pool or hot tub drainage. This feature provides ease of use and versatility, making it suitable for all pool or hot tub owners.

16ft Drainage Hose and Upgraded 25 ft Power Cord

The Lnicez sump pump has a long drainage hose and power cord, giving it the reach needed to pump water from even the largest swimming pools or hot tubs. This makes it an excellent choice for in-ground or above-ground pools, as well as hot tubs.

Built-in Temperature Control and Manual Shut-Off

Thanks to the integrated manual shut-off and temperature control feature. You can rest easy knowing your Lnicez sump pump will turn off automatically when it reaches the set temperature limit. This ensures protection against overheating and long-term damage.

IPX8 Waterproof Level

The Lnicez sump pump is totally waterproof and reliable, so you won’t have to worry about any malfunctions or damage from watery conditions. Its IPX8 certifications ensure safety and performance, perfect for peace of mind.

Positive Aspects:

  • Durable ABS casing is built to last
  • 850 GPH maximum flow rate ensures efficient operation
  • Super quiet operation, won’t disturb your peace
  • Comes with a 16ft drainage hose for easy installation
  • Features an upgraded 25ft power cord for a greater range
  • Works with a variety of water nozzles and hoses for added compatibility


  • Suction is a bit slow for bigger hot tubs

3. Fluentpower Submersible Sump Pump for Hot Tub

Fluentpower Submersible Sump Pump for Hot Tub

Tired of your hot tub’s dirty, unclean water? Let Fluentpower Submersible Sump Pump come to the rescue.

With advanced filtration technology designed for maximum solid content removal up to 1″, this superior pump will help you keep your hot tub fresh and clean. Check out the specifications and features today, you won’t regret it.

Powerful Motor and Maximum Flow Rate

The 1/3 HP powerful motor of the Fluentpower submersible sump pump allows it to achieve a maximum flow rate of 2400 GPH. This ensures water is efficiently sucked out of your hot tub, making it easier to maintain.

Vertical Lift Capability

The pump can lift the water up to 16.4ft vertically, making it ideal for pumping water out of deep hot tubs, pools, or basements.

Durability and Resistance to Corrosion and Burnout

The pump has an upgraded sealing structure, ensuring it is durable and provides long-lasting service.

Also, the entire corrosion-resistant shell makes it highly resistant to rust and other forms of corrosion. The pump also has an overheat prevention mechanism, which helps prevent motor burnout, ensuring that it operates effectively.

Automatic or Continuous Manual Operation

This versatile pump can operate automatically with a float switch or continuously via manual operation. Its simplicity makes operating it an easy task and helps save energy consumption.

Easy to Install

This sump pump installation takes up your last time, thanks to the availability of plastic adapters that come with it. Also, the lightweight and compact design makes transporting and placing it in the desired location easier.

Positive Aspects:

  • 1/3 HP motor ensures your pump can handle even the most strenuous of tasks
  • 2400 GPH flow rate ensures maximum cleaning power
  • Durable sealing structure keeps the motor safe and dry
  • Full corrosion-resistant shell protects the pump from rust and damage
  • Thermal protection prevents the motor from overheating and burning out
  • Float switch allows for automatic or manual operation


  • After a long time, the intake filter may clog
  • There’s a chance the internal switch will fail after long-term use

4. SurmountWay Sump Pump for Hot Tub Draining

SurmountWay Sump Pump for Hot Tub Draining

Say goodbye to troublesome hot tub drainage. SurmountWay’s Sump Pump provides a dependable and powerful solution, along with remarkable features that make your life easier. Let’s take a look into what it has in store for you now.

Efficient and Resilient Design

Constructed with a submersible and non-clogging design, this sump pump is made to withstand the harsh demands of draining hot tubs.

It has a filter hole at the bottom, preventing blockages and ensuring smooth drainage. Aside from that, its energy-saving and powerful motor makes it perfect for large-scale projects.

Thermal Overload Protection and Ultra-Quiet Design

The SurmountWay Sump Pump is engineered with thermal overload protection, preventing the motor from overheating and prolonging its lifespan. 

Its ultra-quiet design ensures that the pump operates without any disturbing noise, making it an ideal choice for both indoor and outdoor use.

Three Nozzle Options and Stabilizing Base

To cater to your specific draining needs, the SurmountWay Sump Pump comes with three different nozzle options. Its stabilizing base platform ensures that the pump remains stable during use, adding to its overall convenience and ease of use.

16ft Drainage Hose and 25 ft Power Cord

This sump pump has a 16ft drainage hose, long enough for large area use. Also, its 25ft power cord provides sufficient flexibility for you to move around without any hassle or interruption.

Clear and Flexible Drain Hose

The SurmountWay Sump Pump features a clear and flexible drain hose, making it easy for you to monitor the draining process and prevent kinks that may cause blockages.

Positive Aspects:

  • Submersible and lightweight, makes it easy to install
  • Drain up to 850 gallons per hour, perfect for draining a hot tub quickly
  • Thermal overload protection prevents the pump from overheating
  • Ultra-quiet design, won’t disturb guests or neighbors
  • Drainage hose 16ft, power cord 25ft for large areas
  • The bottom filter hole keeps your pump running smoothly


  • Filters can get clogged with dirt or pollen if not maintained

5. Deko Submersible Pump for Hot Tub

Deko Submersible Pump for Hot Tub

Ready for an efficient pumping experience in your hot tub? Look at the Deko Submersible Pump. This powerful 400W, 1/2 HP motor can handle up to 1981 gallons per hour – perfect if you want a speedy and reliable draining solution.

Check out all of its amazing features today and make sure that pesky water is gone as soon as possible.

Efficient Performance

Deko submersible pump has a high-quality thermoplastic construction that provides durability and corrosion resistance. It can easily pass solids up to 1/2″ in diameter, allowing for efficient water transfer. 

The multiple outlet sizes also offer different flow rates, making it a versatile option for various hot tub sizes and designs.

Auto Float Switch

With its auto float switch, the Deko Submersible Pump for hot tubs allows for easy and convenient operation. This feature helps prevent motor burnout by automatically turning on and off the pump as water levels change in the hot tub.

Low Noise and Energy Efficient Operation

The Deko sump pump has a hand-designed handle that makes it easy to carry, and its low noise level of under 30 DB ensures comfortable operation. The thermal overload protection feature also ensures longer durability, while the energy-efficient operation helps save on electricity costs.

Easy Maintenance

The higher base plate of the pump prevents debris collection in the sump pit, making maintenance hassle-free. With its durable construction, the Deko Submersible pump is built to last and provide reliable performance for a long time.

Positive Aspects:

  • Powerful motor, 1/2 HP and 400W
  • Handles up to 1981 GPH
  • Auto float switch for easy operation
  • Durable thermoplastic materials for long-lasting performance
  • Multiple outlet sizes for different flow rates
  • Thermal overload protection for longer pump life


  • Inadequate maintenance can lead to inadequate suction power

Comparison Chart of the Top Sump Pumps for Hot Tubs

Product NameOutput PowerMaterialPower SourcePower Cord LengthMaximum Flow Rate
Green Expert Hot Tub Sump Pump1/3 HPPlastic, Reinforced Stainless Steel Pump BaseCorded Electric25 Feet2000 GPH
Lnicez Sump Pump 1/10 HPThermoplasticCorded Electric, AC25 Feet850 GPH
FLUENTPOWER Hot Tub Sump Pump1/3 HPPP Plastic ShellCorded Electric, AC26.2 Feet2400 GPH
SurmountWay Sump Pump75WABSCorded Electric25FT850 GPH
DEKOPRO Sump Pump for Hot Tub1/2 HP‎Plastic, Metal, ThermoplasticBattery PoweredBattery Powered1981 GPH

Factors to Consider When Choosing the Best Sump Pump for Hot Tub

automatic submersible drain pump

Shopping around for a hot tub sump pump can be overwhelming – there’s so much to think about. Before you grab the first one that catches your eye, take some time and consider all of these factors:

1. Motor/Output Power

In the process of selecting an appropriate sump pump for the efficient draining of your hot tub, it is vital to pay close attention to the motor or output power.

This is because the horsepower rating of the motor plays a significant role in determining the pump’s overall capacity to expel water from the hot tub effectively. 

Naturally, larger hot tubs will demand greater power to ensure that the water is drained out promptly and comprehensively.

Thus, selecting a sump pump with a higher horsepower rating will be the optimal choice for more spacious hot tubs. Conversely, hot tubs with a smaller size can adequately rely on sump pumps with comparatively lower horsepower ratings to meet their draining needs.

2. Build Quality

The significance of a sump pump’s build quality cannot be overstated, as it plays a pivotal role in determining the longevity and reliable performance of the device. To ensure optimal durability, selecting materials renowned for their strength and endurance when constructing the pump is essential.

Among the various options available, thermoplastic, PP plastic shell, and ABS stand out as particularly robust choices, making them ideal candidates for sump pumps.

Another crucial aspect in promoting durability is to incorporate a reinforced stainless steel pump base, which bolsters both stability and resilience.

Also, including a corrosion-resistant shell enhances the pump’s protection against rust and damage, thereby solidifying its ability to endure the test of time.

3. Maximum Flow Rate

Selecting the appropriate sump pump for the hot tub drainage also necessitates a careful evaluation of the maximum flow rate. In essence, the flow rate pertains to the pump’s capacity to move a specific volume of water in a set period.

Pumps with varying flow rates are available, making it vital to find one capable of handling your hot tub’s water capacity. For more compact hot tubs, an 850 gallons per hour (GPH) flow rate may adequately meet your needs.

You should consider a more powerful sump pump for larger hot tubs, delivering at least 2000 GPH or even up to 2400 GPH for optimum efficiency.

4. Maximum Lifting Height

hot tub draining methods

Another important consideration when choosing a sump pump for hot tub draining is the maximum lifting height. This refers to the maximum vertical distance the water can go from the hot tub to the discharge point.

The lifting height of different pumps varies, with some offering a maximum lift of 10.5 feet while others can reach 16 feet or even 25 feet.

Make sure that whatever one you select can easily drain all of the water from its depths – otherwise, things could get wet.

5. Power Source

Consider the power source of the sump pump when choosing the right one for draining your hot tub. You have two primary alternatives – a corded electric pump or a battery-powered pump.

The advantage of a corded electric pump lies in its continuous power source, which means you can put your worries about running out of power during the draining process to rest.

Conversely, if you find yourself without access to an electrical outlet in close proximity, a battery-powered pump may be the most viable solution. However, it is essential to remember that the battery may deplete, requiring a recharge before you can use the pump again.

6. Power Cord and Drainage Hose Length

When selecting a corded sump pump model, consider the length of the power cord and drainage hose. Corded electric sump pump models should have long power cords of at least 25 or 26.2 feet to ensure that they can reach the nearest electrical outlet. 

Likewise, the drainage hose should be long enough to reach the desired drainage location, with 16 feet being a generally ideal length.

A short power cord or drainage hose can limit mobility and affect the pump’s ability to drain the hot tub effectively. Ensure that the sump pump you choose can reach the desired location with ease.

7. Thermal Overload Protection

A reliable sump pump should have thermal overload protection to prevent overheating and potential fire hazards. Thermal overload protection will monitor the heat level of the pump while in operation and automatically shut off when it overheats.

This feature prevents the pump from burning out, prolonging its lifespan and making it a cost-efficient investment when draining your hot tub. When looking for a sump pump, consider this feature for added safety and convenience.

8. Weight and Noise

When draining a hot tub, you may have to move the sump pump around to reach all areas. It’s important to consider the weight of the pump to ensure it’s easy to move around and store. A lightweight pump will make the draining process more comfortable and smoother.

Also, don’t let distracting noise interrupt your productive streak. Opt for a quiet sump pump, so you can stay focused and undisturbed.

What Kind of Sump Pump Do I Need to Drain a Hot Tub?

automatic sump pump

To drain a hot tub, it is recommended to use submersible pumps. These types of pumps are designed to be fully submerged in water and are ideal for draining standing water from several sources, including hot tubs.

When selecting a suitable sump pump for this purpose, it is crucial to verify that it is, indeed, a submersible model.

As sump pumps are available in both submersible and pedestal types, it is essential to choose wisely and opt for the right one (a submersible sump pump) to effectively drain the hot tub with ease and professionalism.

What Horsepower Sump Pump Do I Need for Hot Tub Drainage?

To determine the appropriate horsepower for a sump pump to drain your hot tub, you must consider the size and depth of the tub, as well as the amount of water that needs to be pumped out.

A typical four to six-person hot tub holds about 300 to 450 gallons of water, and a seven to eight-person tub holds roughly 475 to 650 gallons.

For hot tubs of this size, a 1/3 or 1/2 horsepower sump pump is sufficient to drain the water quickly and efficiently. However, larger or commercial-grade hot tubs may require a higher horsepower sump pump to effectively remove the water.

How Much Time Does a Sump Pump Take To Drain a Hot Tub’s Water?

How Much Time Does a Sump Pump Take To Drain a Hot Tub's Water

The process of draining a hot tub’s water can greatly differ depending on several variables, such as the tub’s size, the sump pump’s power, and the water level within the tub.

On average, an efficient sump pump can complete this task within 10-15 minutes, ensuring a satisfyingly swift process. However, it is critical to keep in mind that some submersible sump pumps may require a longer duration based on their specific power capabilities and design elements.

Ready to Enjoy Worry-Free Soaks? Invest Wisely in Your Hot Tub’s Sump Pump

Invest in the highest quality sump pump for your hot tub, and rest assured that it will provide safe operation and longevity. With this investment, you’ll be one step closer to enjoying a worry-free dip.

When shopping for a sump pump to accommodate your hot tub’s needs, bear these crucial points in mind – power, flow rate, thermal protection and robustness. That way, you can ensure that the draining of all that spa water will be smoothly taken care of.

The Green Expert’s hot tub sump pump has earned our highest honors and is the perfect choice if you’re looking for a performance powerhouse. Every feature, from impressive specifications to top-notch components, makes it stand out among its competitors in the market.

Green Expert 1/3HP Sump Pump Submersible with Unique Flow Sensor Switch

● Output Power: 1/3 HP
● Volts/Hertz: 110-120V applicable/ 60Hz
● Material: Plastic
● Power Source: Corded Electric
● Maximum Flow Rate: 2000 GPH
● Power Cord Length: 25 Ft.

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