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What you need to know about hot tub jets

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Owning a hot tub is an indulgence that promises relaxation, hydrotherapy, and a sanctuary to unwind after a long day. At the heart of this rejuvenating experience lie the unassuming yet powerful hot tub jets. These essential fixtures play a crucial role in delivering the invigorating massage and therapeutic benefits that make hot tub ownership so appealing.

In this article, we will explore the various types of hot tub jets, factors to consider when choosing them, maintenance tips, therapeutic benefits, and innovative technologies shaping the future of these vital hot tub components.


  • Hot tub jets come in various types like air jets for gentle massage, water jets for deep tissue massage, combination jets for adjustable experiences, and specialised jets like pulsating or oscillating jets.  
  • Factors like jet placement, pressure, flow rate, sizes and quantities determine the overall massage intensity and coverage.
  • Regular cleaning, inspections, replacements, and proper water chemistry maintenance are crucial for optimal jet performance.  
  • Hot tub jets provide therapeutic benefits such as hydrotherapy, stress relief, pain relief, and muscle recovery through adjustable, targeted massage.

1. Hot tub jet anatomy and functions

Understanding the anatomy and functions of hot tub jets is crucial for appreciating their role in delivering a rejuvenating massage experience. These unassuming fixtures are engineered with precision to channel water and air in specific patterns, creating the soothing or invigorating sensations that make hot tub ownership so appealing.

a. Jet housing or body

The jet housing or body is the outer casing that holds all the internal components together. Typically made of durable materials like plastic or stainless steel, the housing must withstand constant water exposure and pressure without cracking or leaking. A well-designed jet housing ensures longevity and consistent performance.

b. Jet interior

Inside the jet housing lies a sophisticated network of components that work in tandem to generate the desired massage action. The heart of the jet is the nozzle, which shapes and directs the flow of water and air. 

Surrounding the nozzle are precision-engineered parts like bearings, which allow for smooth rotation, and impellers, which draw in water or air and channel it towards the nozzle.

ALSO READ: 5 essential hot tub repair solutions for common mishaps

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c. Jet nozzles

Jet nozzles come in a variety of designs, each crafted to deliver a specific massage experience. Some nozzles are stationary, projecting a focused stream of water or air, while others rotate or oscillate, providing a sweeping massage action. 

The size of the nozzle also plays a crucial role, with larger nozzles generating more powerful, deep-tissue massages and smaller nozzles offering a more concentrated, targeted sensation.

d. Jet operation

Hot tub jets are intrinsically linked to the hot tub’s pumps and blowers, which provide the necessary water and airflow. Dedicated pump or blower setups are often used for different jet systems, ensuring optimal performance. 

Jets can be controlled via the hot tub’s topside controls, allowing users to adjust water and airflow, as well as jet pulsation or rotation, to customise their massage experience.

2. Factors to consider when choosing hot tub jets

When selecting hot tub jets, several factors come into play to ensure an optimal massage experience.

Achieving the ideal massage experience hinges on strategic jet placement, pressure and flow rates, as well as jet sizes and quantities. Common jet layouts range from full-body coverage with jets positioned to reach all major muscle groups, to targeted placements focused on areas like the back, shoulders, and legs. 

The size and number of jets also play a role, as larger jets typically offer a more powerful massage, while smaller jets provide a concentrated, precise sensation. Having more jets generally translates to better full-body coverage. 

Ultimately, balancing jet size, quantity, and placement based on the hot tub’s dimensions is key to an optimal massage tailored to individual requirements.

3. Maintenance and care for hot tub jets

Proper maintenance and care are essential to ensure the longevity and optimal performance of your hot tub jets.

a. Cleaning and descaling

Regular cleaning and descaling are crucial to prevent buildup and maintain jet performance. The cleaning process typically involves using specialised jet cleaners or vinegar solutions to remove any mineral deposits or residue. The frequency of cleaning depends on usage and water quality, but most experts recommend a thorough cleaning every few months.

b. Inspecting and replacing jets

Over time, hot tub jets can show signs of wear and tear, such as cracks, leaks, or reduced performance. It’s essential to inspect your jets regularly and replace any damaged or worn-out components. Always use manufacturer-approved replacement parts to ensure compatibility and proper function.

c. Water chemistry and jet performance

Maintaining proper water chemistry is vital for both the overall hot tub experience and the longevity of your jets. Improper pH, sanitiser, and calcium levels can lead to scaling, corrosion, and decreased jet performance. 

Following the manufacturer’s recommended water chemistry guidelines and regularly testing and adjusting the water can help optimise jet performance and extend its lifespan.

ALSO READ: 6 hot tub maintenance tips for a stain-free soak

4. Therapeutic benefits of hot tub jets

Beyond their functional role, hot tub jets offer a range of therapeutic benefits that contribute to overall well-being.

a. Hydrotherapy and massage

The combination of warm water and the massaging action of hot tub jets is the foundation of hydrotherapy. This therapeutic practice has been used for centuries to promote relaxation, relieve muscle tension, and aid in recovery. 

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b. Stress relief and relaxation

Immersing yourself in a hot tub with the soothing massage of the jets can be a powerful stress reliever. The warmth of the water and the gentle pressure of the jets help melt away tension and promote a sense of calm and relaxation. 

Incorporating aromatherapy or chromotherapy (coloured light therapy) can further enhance the relaxation experience, creating a spa-like atmosphere in your own outdoor or indoor area.

c. Pain relief and muscle recovery

Hot tub jets can be a valuable tool for pain relief and muscle recovery. The massaging action of the jets can help alleviate muscle soreness and promote healing after an injury or intense workout. 

Targeting specific areas like the back, shoulders, or legs can provide targeted relief and aid in recovery, making hot tub sessions a beneficial addition to post-workout routines.

ALSO READ: 7 hot tub health benefits for immune defence

5. Innovative hot tub jet technologies

As technology advances, hot tub manufacturers continue to introduce innovative jet features to enhance the user experience.

a. Smart jets and customisable settings

Smart technology has made its way into hot tub jets, allowing for greater customisation and control. Many modern hot tubs offer smart jets with remote control or app-based adjustment, enabling users to personalise their massage experience with preset jet patterns and sequences.

b. Energy-efficient jets

With a growing emphasis on sustainability, manufacturers are developing energy-efficient jet designs that deliver powerful performance while minimising energy consumption. Low-flow and high-efficiency jets can significantly reduce energy costs and environmental impact without sacrificing massage quality.

ALSO READ: Setting your hot tub temperature just right

c. Advanced jet features

Cutting-edge jet technologies include pulsating or oscillating jets that vary massage intensities, interchangeable jet faces for different massage styles, and innovative jet designs and materials that enhance durability and performance. These advancements aim to provide a more tailored and dynamic massage experience.

Discover a new level of rejuvenation with RotoSpa

Hot tub jets are an integral part of the hot tub experience, offering a range of massage intensities, therapeutic benefits, and customisation options. 

As you now learn the different types of jets, considering factors like placement and pressure, and maintaining proper care, you can maximise the enjoyment and longevity of your hot tub investment. As technology continues to evolve, innovative jet features promise even more personalised and enhanced massage experiences in the future.

If you’re ready to experience the ultimate in hydrotherapy and relaxation, look no further than RotoSpa’s cutting-edge hot tub jets. Contact us today to discover how RotoSpa can transform your hot tub into a personal oasis of rejuvenation.

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