Temperature-controlled water containment system

The water containment system addresses installation and energy challenges with a streamlined design, efficient maintenance, and ergonomic features, ensuring consistent temperature control and aesthetic appeal, enhancing user experience and accessibility.

WO2026161793A2PCT designated stage Publication Date: 2026-07-30THE CHILLPOD INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
THE CHILLPOD INC
Filing Date
2026-01-26
Publication Date
2026-07-30

AI Technical Summary

Technical Problem

Existing temperature-controlled water systems for wellness and therapeutic practices face challenges such as complex installation, inconsistent temperature maintenance, high energy consumption, ergonomic and aesthetic deficiencies, and space requirements, deterring consistent use and appeal.

Method used

A water containment system with a streamlined installation process, efficient maintenance mechanisms, advanced temperature control, ergonomic design, and aesthetic appeal, featuring a base, hatch lid, waterjets, speakers, armrests, and UV filter, along with a compact egg-shaped design to enhance user experience and accessibility.

Benefits of technology

The system provides a consistent, energy-efficient, and comfortable user experience with easy maintenance, reducing installation complexity and energy consumption while being aesthetically appealing and adaptable to various spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

A water containment system designed for temperature-controlled water immersion, comprising a base and a hatch lid operable for user entry and exit. The system includes a seat and backrest, a plurality of water jets, and a water intake coupled to a water chilling and / or heating system. The system is suitable for indoor and outdoor use in various settings, including homes and commercial spaces.
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Description

TEMPERATURE-CONTROLLED WATER CONTAINMENT SYSTEM FIELD

[0001] The present relates to wellness and therapeutic systems, specifically water containment systems designed for temperature-controlled water immersion.BACKGROUND

[0002] Cold plunge systems and hot tubs have both gained popularity in wellness and therapeutic practices for their potential benefits in muscle recovery, mental clarity, and overall well-being. Despite their advantages, existing systems often present several challenges to users. Many systems require complex installation processes and additional equipment, which can be daunting and timeconsuming. Maintaining water quality and system functionality can be cumbersome and costly, deterring consistent use. Achieving and maintaining the desired temperatures can be challenging, leading to inconsistent experiences. Additionally, some systems consume significant energy to maintain the temperatures, resulting in higher utility bills and environmental concerns. Ergonomic design and aesthetic appeal are also lacking in many existing systems, making them uncomfortable or difficult to use and less attractive to potential buyers. Furthermore, the space required to house these units can be prohibitive for many users.

[0003] There is a need for a system that addresses these challenges by offering a streamlined installation process, efficient maintenance, consistent temperature control, reduced energy consumption, ergonomic design, and aesthetic appeal. Such a system would enhance user experience and accessibility, making cold plunge therapy more practical and appealing for a broader range of consumers.SUMMARY

[0004] The foregoing and other objects, features, and advantages of the disclosed technology will become more apparent from the following detailed description, which proceeds with reference to the accompanying figures.

[0005] According to one aspect of the present invention, a water containment system comprises a base having a seat, a backrest, and a water intake port; a hatch lid connected to the base, the hatch lid being operable to open and close to allow user entry and exit, the hatch lid comprising a see-through portion to permit a user to see outside of the water containment system when the hatch lidis in a closed position; a water chilling system configured to chill water and direct it into the base through the water intake port.

[0006] According to another aspect, the water containment system further comprises a plurality of waterjets in the base.

[0007] According to yet another aspect, the base comprises an inner shield and an outer shield.

[0008] According to yet another aspect, the water containment system further comprises a headrest coupled to the hatch lid.

[0009] According to yet another aspect, the water containment system further comprises one or more speakers coupled to the hatch lid.

[0010] According to yet another aspect, the water containment system further comprises a pair of armrests positioned in the base on either side of the seat.

[0011] According to yet another aspect, the pair of armrests comprise an upper portion and a lower portion that extends downward from the upper portion.

[0012] According to yet another aspect, at least some of the plurality of water jets are located in the pair of armrests.

[0013] According to yet another aspect, the water chilling system is external to the base and hatch lid.

[0014] According to yet another aspect, the water containment system further comprises a side table that can be positioned adjacent and external to the base, wherein the side table houses the water chilling system.

[0015] According to yet another aspect, the side table further comprises a control display to control settings of the water containment system.

[0016] According to yet another aspect, the base further comprises a slip-resistant floor plate; a central water jet distribution system; and an emergency drain port exit.

[0017] According to yet another aspect, the water containment system further comprises a UV fdter for water sanitation; and chromotherapy LED lights integrated into the system for enhanced user experience.

[0018] According to yet another aspect, the plurality of waterjets are adjustable and can be controlled to deliver water in a plurality of massage modes.

[0019] According to yet another aspect, the base and hatch lid, when in the closed position, define an exterior shape that is generally egg-shaped.

[0020] According to yet another aspect, a water containment system comprises a base having a first opening to allow a user to enter and exit the water containment system, the first opening being defined by a first circular perimeter surface; a hatch lid that is hingedly coupled to the base and moveable between a closed position and an open position, the hatch lid having a second opening that is defined by a second circular perimeter surface, wherein the first and second circular surfaces are configured to mate with one another in the closed position.

[0021] According to yet another aspect, a water containment system comprises a base defining an opening to allow a user to enter and exit the water containment system; a hatch lid that is hingedly coupled to the base and moveable between a closed position and an open position; wherein, in the closed position, the base and hatch lid collectively define a shape that has an intermediate width at an intermediate portion of the shape, an upper width at an upper portion of the shape, and a lower width at the lower portion of the shape, and wherein the intermediate width is larger than the upper and lower widths.

[0022] According to yet another aspect, the water containment system has a generally circular cross section taken along a horizontal plane, wherein the circular cross section decreases from the intermediate portion to the upper portion and from the intermediate portion to the lower portion.

[0023] According to another aspect, a water containment system is provided comprising a base having a seat, a backrest, and a water intake port. A hatch lid is connected to the base, the hatch lid being operable to open and close to allow user entry and exit, and the hatch lid comprising a see-through portion to permit a user to see outside of the water containment system when the hatch lid is in a closed position. A water heating and / or a water chilling system can be provided to heat and / or chill water and direct it into the base through the water intake port.BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 shows a perspective view of the water containment system with the primary components.

[0025] FIG. 2 shows a perspective view of the water containment system with the main components.

[0026] FIG. 3 shows a perspective view of the water containment system's interior seating and jet configuration.

[0027] FIG. 4 shows a cross-sectional view of the water containment system's internal components and structure.

[0028] FIG. 5 shows a cross-sectional view of the water containment system's internal components and layout.

[0029] FIG. 6 shows a front exterior elevation of the water containment system with the associated components.

[0030] FIG. 7 depicts the front exterior elevation of the water containment system.

[0031] FIG. 8 shows a cross-sectional view of the water containment system's internal components and layout.

[0032] FIG. 9 shows a front view of the water containment system with the primary components and control interfaces.

[0033] FIG. 10 shows a side elevation view of the water containment system's external structure.

[0034] FIG. 11 shows a top view of the water containment system's internal components and layout.DETAILED DESCRIPTIONGeneral Considerations

[0035] For purposes of this description, certain aspects, advantages, and novel features of the embodiments of this disclosure are described herein. The disclosed methods, apparatus, and systems should not be construed as being limiting in any way. Instead, the present disclosure is directed toward all novel and nonobvious features and aspects of the various disclosed embodiments, alone and in various combinations and sub-combinations with one another. The methods, apparatus, and systems are not limited to any specific aspect or feature or combination thereof, nor do the disclosed embodiments require that any one or more specific advantages be present or problems be solved.

[0036] Although the operations of some of the disclosed embodiments are described in a particular, sequential order for convenient presentation, it should be understood that this manner of description encompasses rearrangement, unless a particular ordering is required by specific language set forth herein. For example, operations described sequentially may in some cases be rearranged or performed concurrently. Moreover, for the sake of simplicity, the attached figures may not show the various ways in which the disclosed methods can be used in conjunction with other methods.

[0037] As used in this disclosure and in the claims, the singular forms “a,” “an,” and “the” include the plural forms unless the context clearly dictates otherwise. Additionally, the term “includes” means “comprises.” Further, the terms “coupled” and “associated” do not exclude the presence of intermediate elements between the coupled or associated items absent specific contrary language.

[0038] Although there are alternatives for various components, dimensions, parameters, operating conditions, etc., set forth herein, that does not mean that those alternatives are necessarily equivalent and / or perform equally well. Nor does it mean that the alternatives are listed in a preferred order unless stated otherwise.

[0039] As used herein, the term “cold plunge system” refers to a system that includes a vessel that is capable of retaining water and temperature reducing means for reducing the temperature of the water below room temperature (either before or after the water is retained by the vessel). For example, a cold plunge system, as used here, may be capable of chilling water to temperatures that range from 50°F to 59°F (10°C to 15°C) and storing the water in a vessel.

[0040] A “hot tub” system as used herein, refers to a vessel that is capable of retaining water and temperature raising for increasing the temperature of the water above room temperature (either before or after the water is retained by the vessel).

[0041] The water containment systems describe herein can operate, for example, in a wide range of temperatures, such as, for example, from about 36°F to about 104°F.

[0042] As used herein, the term “egg-shaped" refers to a shape form or structure that generally resembles the shape of an egg. In particular, the shape includes a generally smooth, continuous curve that is wider in the middle and tapers (i.e., gets narrower) towards both ends.Overview of the Disclosed Technology

[0043] The disclosed technology provides a water containment system designed to overcome the aforementioned challenges. The system features a streamlined installation process that simplifies setup and reduces the need for additional equipment. Efficient maintenance mechanisms ensure that water quality and system functionality are easily managed, promoting consistent use. The system incorporates advanced temperature control to achieve and maintain the desired cold temperature, providing a reliable and consistent experience. Energy-efficient components reduce overall energy consumption, addressing environmental concerns and lowering utility costs. Ergonomic design elements enhance user comfort and ease of use, while the aesthetic appeal of the system makes the system an attractive addition to any space. The compact design of the system ensures that the system can be accommodated in a variety of settings, making the system accessible to a wider range of users.Embodiments of the Disclosed Technology

[0044] FIG. 1 shows a water containment system (WCS) that can be a chill plunge system and / or a hot tub system 100. In the embodiment shown in FIG. 1, the WCS 100 comprises a base 102, a hatch lid 104, a hatch lid visor (HLV) 106, a headrest 108, speakers 110, an armrest 112, stairs 114, a side table 116, a control display 118, a seat 120, a backrest 122, and jets 124.

[0045] Seat 120 and backrest 122 can be separate components, but are preferably formed from a single component (e.g., a single molded component with the seat and backrest being continuous components). If desired, the armrests 112 can also be formed together with the seat 120 and backrest 122.

[0046] The base 102 supports the entire structure of the WCS 100, providing stability and housing various internal components. The base 102 is designed to withstand the weight and pressure exerted during use.

[0047] The hatch lid 104 covers the top opening of the WCS 100, allowing users to enter and exit the system, using the stairs 114 (or other raised platform) as described below. The hatch lid 104 is connected to the base 102 and can be opened or closed as needed.

[0048] The hatch lid visor (HLV) 106 is attached to the hatch lid 104, providing additional coverage and protection. The HLV 106 helps to shield users from external elements and enhances the overall aesthetic of the WCS 100.

[0049] The HLV 106 can be see-through (e.g., clear, lightly tinted, etc.) to ensure that users can still see outside the system, preventing any feelings of confinement or cl ustrophobia. The materials used in the construction of the HLV 106 are chosen for their durability and resistance to wear and tear. For example, the HLV 106 can be made from high-quality clear plastic, acrylic, or eco resin, ensuring that it can withstand the pressures and temperatures associated with cold and / or hot water therapy. These materials also ensure that the HLV 106 remains clear and free from scratches, maintaining its aesthetic appeal overtime. In addition, the HLV 106 can configured to be easily removable for cleaning and maintenance, ensuring that the system remains hygienic and functional. In some embodiments, the HLV 106 can be quickly detached and reattached as needed, making it easy for users to keep the system in optimal condition.

[0050] The headrest 108 is positioned inside the WCS 100, offering support and comfort to users during their immersion. The headrest 108 is ergonomically designed to align with the natural curvature of the user's head and neck.

[0051] Speakers 110 can be integrated into the WCS 100, allowing users to enjoy audio content while using the system. The speakers 110 can be strategically placed to deliver optimal sound quality and immersion. The speakers can be Bluetooth-enabled to allow for wireless audio streaming, providing users with the convenience of playing their favorite music, podcasts, or other audio content without the need for physical connections. These speakers can be easily paired with smartphones, tablets, or other Bluetooth-enabled devices, offering a seamless and user-friendly experience. The speakers can also be water-resistant, ensuring they can withstand the conditions within the chill plunge system.

[0052] The armrest 112 is located inside the WCS 100, providing a comfortable place for users to rest their arms. The armrest 112 is designed to enhance the user's comfort and relaxation during use. In addition, the armrests 112 can also facilitate entering and exiting the WCS 100 by additionally functioning as a step.

[0053] The stairs 114 are positioned adjacent to the WCS 100, facilitating easy entry and exit. The stairs 114 are sturdy and designed to support the user's weight while climbing in and out of the system. In addition, the stairs can have a nesting shape, so that the lower stair can be received within the footprint of the upper stair as shown, for example, in FIG. 2.

[0054] The side table 116 is situated next to the WCS 100, offering a convenient surface for users to place personal items. The side table 116 is designed to be easily accessible and stable.

[0055] The control display 118 is integrated into the WCS 100, allowing users to adjust various settings and monitor system status. The control display 118 provides an intuitive interface for managing the system’s functions. The control display 118 is strategically positioned within the WCS 100 for easy access and visibility. It features an intuitive interface that enables users to manage the system's functions effortlessly. The control display 118 allows users to adjust the water temperature, control the intensity and coverage of the jets, and activate additional features such as the UV sanitation system and chromotherapy LED lights.

[0056] The control display 118 is designed to be user-friendly, with clear and responsive touch controls. The display provides real-time feedback on the system’s status, including current water temperature, jet settings, and any active features. This ensures that users can easily monitor and adjust the system to their preferences.

[0057] In addition to its primary functions, the control display 146 may also include additional features such as a tinier, allowing users to set the duration of their session. The display may also provide notifications or alerts for maintenance tasks, such as cleaning the system or replacing filters, ensuring that the WCS 100 remains in optimal working condition.

[0058] The seat 120 is located inside the WCS 100, providing a comfortable place for users to sit during their immersion. The seat 120 is designed to support the user’s body and enhance their overall experience. The seat 120 includes an integrated backrest 122, which is ergonomically designed to provide additional support to the user's back. The seat 120 can be made from any suitable waterproof, material such as eco resin.

[0059] The backrest 122 is positioned behind the seat 120, offering additional support and comfort. The backrest 122 is ergonomically designed to align with the natural curvature of the user’s back.

[0060] The jets 124 are integrated into the WCS 100, delivering water flow and pressure to enhance the user's experience. The jets 124 can be adjusted to provide varying levels of intensity and coverage.

[0061] As shown in FIG. 1, the WCS 100 has an overall egg-shaped design. This ergonomic and aesthetically pleasing shape is not only visually appealing but also functional, providing a compact and efficient use of space. The system includes a base that supports the entire structure, a hatch lid for easy entry and exit, and a hatch lid visor for additional coverage and protection. The interior isdesigned with user comfort in mind, featuring a headrest, armrests, and a seat with a backrest. The system also includes integrated speakers, jets, and a control display, all housed within the sleek, egg-shaped exterior. The stairs and side table are positioned adjacent to the system, complementing its design and providing additional functionality.

[0062] FIG. 2 shows a perspective view of the WCS 100. The system comprises a base 102, a hatch lid 104, a hatch lid visor 106, stairs 114, a side table 116, and access doors (perforated panels) 142.

[0063] FIG. 3 shows a perspective view of the water containment system 100, focusing on the interior seating and jet configuration. The components highlighted in this figure include jets 124, inner shield 126, outer shield 128, floor plate 130, water intake 132, and emergency drain port exit 134.

[0064] The jets 124 are strategically positioned within the water containment system 100 to deliver water flow and pressure, enhancing the user's therapeutic experience. These jets 124 are located in multiple areas, including the seat 120, backrest 122, and armrests 112, ensuring that different parts of the user's body receive targeted water massage. The jets 124 can be adjusted to provide varying levels of intensity and coverage, allowing users to customize their experience according to their preferences.

[0065] The inner shield 126 is located inside the water containment system 100 and is designed to provide a comfortable and protective barrier for the user. The inner shield is composed of durable materials such as plastic, acrylic, or eco resin, which are chosen for their resistance to water and their ability to withstand the pressures and temperatures required. The inner shield is ergonomically designed to align with the natural curvature of the user's body, enhancing comfort and support during immersion. Additionally, the inner shield helps to contain the water within the system, preventing leaks and ensuring that the water remains at the desired temperature.

[0066] The outer shield 128 forms the exterior of the water containment system 100, providing structural integrity and protection. The outer shield 128 is composed of durable materials such as plastic, acrylic, or eco resin, ensuring that the system can withstand various environmental conditions and maintain its aesthetic appeal over time.

[0067] The floor plate 130 is located at the base of the water containment system 100, providing a stable and supportive surface for users. The floor plate 130 is designed to be slip-resistant, ensuring user safety during entry and exit.

[0068] The water intake 132 is positioned near the base of the water containment system 100, allowing water to enter the system from an external source. The water intake 132 is connected to the central waterjet distribution system, ensuring an even and consistent flow of water to the various jets 124 integrated into the system. This setup ensures that the water temperature and flow are maintained at optimal levels, providing a consistent and enjoyable experience for the user.

[0069] The emergency drain port exit 134 is located at the base of the water containment system 100, providing a means for quickly draining water from the system in case of an emergency. The emergency drain port exit 134 is designed to be easily accessible and efficient, ensuring that the system can be safely and quickly emptied if necessary.

[0070] FIG. 4 shows a cross-sectional view of the water containment system 100, highlighting its internal components and structure. The components visible in this figure include the stairs 114, armrest 112, seat 120, perforated panels 126, floor plate 130, and chase for plumbing piping 136.

[0071] The chase for plumbing piping 136 is positioned near the top of the water containment system 100, providing a dedicated space for the plumbing pipes that supply water to the jets and other components. The chase for plumbing piping 136 ensures that the plumbing is neatly organized and protected, contributing to the overall efficiency and reliability of the system.

[0072] FIG. 5 shows a cross-sectional view of the water containment system 100. As shown in FIG. 5, the access doors 142 are located on the lower section of the WCS 100. These doors are designed with multiple perforations to allow for breathability and ventilation. The perforated lower access doors 142 provide access to the waterjet distribution center and other internal components, ensuring that the system remains functional and easy to maintain.

[0073] The arm jet pump 138 is positioned within the water containment system 100 and is responsible for supplying water to the jets located in the armrests 112. The lower leg jet pump 140 is also positioned within the water containment system 100 and is responsible for supplying water to the jets located in the lower leg area.

[0074] FIG. 6 shows a front exterior elevation of the water containment system with the associated components. FIG. 7 depicts the front exterior elevation of the water containment system. A power cord outlet 146 can be provided at the access doors 142.

[0075] FIG. 8 shows a cross-sectional view of the water containment system 100, highlighting its internal components and layout. The components visible in this figure include the hatch lid visor 106, armrest 112, side table 116, perforated lower access doors 142, jet distribution system 148, UV filter 150, and water intake 152.

[0076] The jet distribution system 148 is responsible for distributing water to the various jets integrated into the water containment system 100. The jet distribution system 148 ensures an even and consistent flow of water to the jets, providing a reliable and enjoyable experience for the user. The jet distribution system 148 is designed to be efficient and durable, ensuring long-term functionality and performance.

[0077] The UV filter 150 is integrated into the water containment system 100 to maintain water quality. The UV filter 150 uses ultraviolet light to sanitize the water, eliminating harmful bacteria and pathogens. This ensures that the water remains clean and safe for use, enhancing the overall user experience. The UV filter 150 is activated by a push button, making it easy for users to maintain water quality with minimal effort.

[0078] The water intake 152 is positioned near the base of the water containment system 100, allowing water to enter the system from an external source. The water intake 152 is connected to the central waterjet distribution system, ensuring an even and consistent flow of water to the various jets integrated into the system. This setup ensures that the water temperature and flow are maintained at optimal levels, providing a consistent and enjoyable experience for the user.

[0079] FIG. 9 shows a front view of the water containment system 100 with the primary components and control interfaces. The components visible in this figure include the base 102, hatch lid visor 106, headrest 108, speakers 110, stairs 114, side table 116, seat 120, and backrest 122.

[0080] FIG. 10 shows a top view of the side table 116, highlighting its design and structure. The side table 116 is designed to be easily accessible and stable, providing a convenient surface for users to place personal items. The side table 116 is also designed to fit inside the water containment system 100 for packaging and storage. The perforated design of the side table 116 allows for breathability and enhances the overall aesthetic of the system.

[0081] FIG. 11 shows a side elevation view of the side table 116, highlighting its internal components. The components visible in this figure include the water intake 152, dual chiller 154, and dual chiller outtake filter 156.

[0082] The water intake 152 is positioned near the base of the side table 116, allowing water to enter the system from an external source. The water intake 152 is connected to the central waterjet distribution system, ensuring an even and consistent flow of water to the various jets integrated into the water containment system 100. The dual chiller 154 is responsible for achieving and maintaining the desired cold temperature within the system. The dual chiller 154 is designed to beefficient and durable, ensuring long-term functionality and performance. The dual chiller outtake filter 156 is positioned near the base of the side table 116, ensuring that the water remains clean and free of debris as it circulates through the system.

[0083] In some implementations, the water containment system can be formed from three major components that include the inner shell, outer shell, and lid, with the side table and stairs being formed separately.

[0084] The WCS 100 can also be alternatively, or additionally, used as a hot tub. For use as a hot tub, there only alteration required is providing warm or hot water (e.g., 80° F -104° F) into the WCS 100 either through the water intake system or separately. Accordingly, in some embodiments, the system can include a water heater, in addition to in the place of the cold water system. For the purposes of this disclosure, FIG. 11 can also be considered to disclose a water heater 154 that can be used in connection with the water intake 152. For a system with both capabilities, two side tables 116 can be provided or, alternatively, a single larger side table 116 comprising both heating and cooling systems could be used.

[0085] In view of the many possible embodiments to which the principles of the disclosed technology may be applied, it should be recognized that the illustrated embodiments are only preferred examples and should not be taken as limiting the scope of the disclosure. Rather, the scope of the disclosure is at least as broad as the following claims and equivalents of the recited features. I therefore claim all that comes within the scope and spirit of these claims.

Claims

CLAIMS:

1. A water containment system, comprising:a base having a seat, a backrest, and a water intake port;a hatch lid connected to the base, the hatch lid being operable to open and close to allow user entry and exit, the hatch lid comprising a see-through portion to permit a user to see outside of the water containment system when the hatch lid is in a closed position; anda water chilling system configured to chill water and direct it into the base through the water intake port.

2. The water containment system of claim 1, further comprising a plurality of waterjets in the base.

3. The water containment system of claims 1-2, wherein the base comprises an inner shield and an outer shield.

4. The water containment system of claims 1-3, further comprising a headrest coupled to the hatch lid.

5. The water containment system of claims 1-4, further comprising one or more speakers coupled to the hatch lid.

6. The water containment system of claims 1-5, further comprising a pair of armrests positioned in the base on either side of the seat.

7. The water containment system of claim 6, wherein the pair of arm rests comprise an upper portion and a lower portion that extends downward from the upper portion.

8. The water containment system of one of claims 6 and 7, wherein at least some of the plurality of waterjets are located in the pair of armrests.

9. The water containment system of claims 1-8, wherein the water chilling system is external to the base and hatch lid.

10. The water containment system of claim 9, further comprising a side table that can be positioned adjacent and external to the base, wherein the side table houses the water chilling system.

11. The water containment system of claim 10, wherein the side table further comprises a control display to control settings of the water containment system.12 The water containment system of claims 1-11, wherein the base further comprises:a slip-resistant floor plate;a central waterjet distribution system; andan emergency drain port exit.

13. The water containment system of claims 1-12, further comprising:a UV filter for water sanitation; andchromotherapy LED lights integrated into the system for enhanced user experience;14. The water containment system claims 2-13, wherein the plurality of waterjets are adjustable and can be controlled to deliver water in a plurality of massage modes.

15. The water containment system of claims 1-14, wherein the base and hatch lid, when in the closed position, define an exterior shape that is generally egg-shaped.

16. A water containment system comprising:a base having a first opening to allow a user to enter and exit the water containment system, the first opening being defined by a first circular perimeter surface; anda hatch lid that is hingedly coupled to the base and moveable between a closed position and an open position, the hatch lid having a second opening that is defined by a second circular perimeter surface,wherein the first and second circular surfaces are configured to mate with one another to in the closed position.

17. A water containment system comprising:a base defining an opening to allow a user to enter and exit the water containment system; anda hatch lid that is hingedly coupled to the base and moveable between a closed position and an open position,wherein, in the closed position, the base and hatch lid collectively define a shape that has an intermediate width at an intermediate portion of the shape, an upper width at an upper portion of the shape, and a lower width at the lower portion of the shape, andwherein the intermediate width is larger than the upper and lower widths.

18. The method of claim 17, wherein the water containment system has a generally circular cross section taken along a horizontal plane, wherein the circular cross section decreases from the intermediate portion to the upper portion and from the intemrediate portion to the lower portion.

19. A hot tub and water containment system, comprising:a base having a seat, a backrest, and a water intake port;a hatch lid connected to the base, the hatch lid being operable to open and close to allow user entry and exit, the hatch lid comprising a see-through portion to permit a user to see outside of the water containment system when the hatch lid is in a closed position;a water heating system configured to raise the temperature of water and direct it into the base through the water intake port; anda water chilling system configured to chill water and direct it into the base through the water intake port.

20. A hot tub system, comprising:a base having a seat, a backrest, and a water intake port;a hatch lid connected to the base, the hatch lid being operable to open and close to allow user entry and exit, the hatch lid comprising a see-through portion to permit a user to see outside of the water containment system when the hatch lid is in a closed position; anda water heating system configured to raise the temperature of water and direct it into the base through the water intake port.