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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteFor a six-person hot tub, compare the seating layout, dimensions, filled weight, electrical requirements and local installation support—not just the advertised headcount. Caldera’s Geneva, Tahitian and Makena and Jacuzzi’s J-365 are manufacturer-listed options for six or more people, but the published specifications do not establish which one will feel most comfortable. Use them as a shortlist, then check the exact model-year details and site requirements with a local dealer and qualified installer.
What to compare in a six-person hot tub
“Six-person” is a manufacturer-stated capacity, not an independent comfort rating. Six adults may have different expectations for personal space, legroom and seat depth. Review the seat plan and, if possible, try the layout in person before choosing. A lounger and an open-seat design serve different preferences; the specifications below do not show which layout feels better to a particular household.
Dimensions and water volume help you assess fit and operating needs, while weight matters for the supporting surface and delivery plan. Always distinguish dry weight from filled weight. Electrical supply, sanitation and filtration, insulation, cover, warranty and nearby service also belong in the comparison; the figures below do not settle those questions.
Four six-person models and their published specifications
These are manufacturer-published figures, not results from comparative comfort or performance tests. Specifications can vary by model year and configuration, so confirm the exact version offered in your area.
The Tool Desk
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- Heated Air Bubble Technology: Immerse yourself in heated air bubbles that relax your body, melt away stress, and leave you feeling rejuvenated. The heating system adjusts to fit your personal temperate preference, for an optimal spa experience.
- Energy-Efficient Spa Cover: Keep the water warmer, longer, with high-density thermal-resistant foam that locks in heat and minimizes loss. This energy-efficient hot tub cover boosts performance, improves efficiency by up to 50%, and lets you enjoy longer, more relaxing spa sessions.
- Fiber-Tech Beam Construction: The plush, supportive inflatable hot tub creates a luxurious escape, while advanced Fiber-Tech Technology delivers lasting strength and stability—so you can unwind with total peace of mind.
- Hard Water Treatment System: Bask in outdoor spa sessions with soft water thanks to the built-in Hard Water Treatment System. By reducing harsh mineral buildup, the treatment system extends the life of your backyard spa.
- Easy Access Filter Replacement: The portable spa is simple to maintain and features an integrated control box design for cartridge filter replacement. Includes two easy-to-replace S1 Type filter cartridges.
| Model | Published capacity | Dimensions | Water volume | Weight | Jets / electrical |
|---|---|---|---|---|---|
| Caldera Geneva | 6 adults | 7 ft 5 in × 7 ft 5 in × 38 in | 410 gallons | 1,000 lb dry; 5,470 lb filled | 55 jets; electrical details not stated on the cited product page |
| Caldera Tahitian | 6 adults | 7 ft × 7 ft × 36 in | 375 gallons | 900 lb dry; filled weight not stated | Jet count and electrical details not stated on the cited product page |
| Caldera Makena | 6 adults | 7 ft 5 in × 7 ft 5 in × 36 in | 395 gallons | 1,020 lb dry; 5,365 lb filled | 46 jets; electrical details not stated on the cited product page |
| Jacuzzi J-365 | 6–7 people | Dimensions not stated on the cited product page | 395 gallons | 868 lb dry; filled weight not stated | 46 jets; North American 240 VAC with 40A, 50A or 60A options |
Sources: Caldera Geneva, Caldera Tahitian, Caldera Makena and Jacuzzi J-365.
How the published figures affect a real installation
Measure the tub and the route to its final position
Start with the tub’s external dimensions, then measure gates, turns, stairs and any other delivery obstacles. The Geneva and Makena are each 7 ft 5 in square; the Tahitian is 7 ft square. The cited J-365 page does not state dimensions, so request the exact model drawing before planning a space or delivery. Allow for whatever access and service clearances the manufacturer specifies for the offered configuration.
Rank #2
- Soothing Airjet Massage System: The Coleman SaluSpa Hawaii hot tub features 140 bubble jets that create a warm and relaxing spa experience for up to 6 people, right from the comfort of your home.
- Energy-Efficient Design: Insulated walls and cover are up to 40% more energy-efficient in keeping your hot tub warmer, compared to similar hot tubs. NOTE: APSP-14 and Title 20 compliant. This model meets all energy efficiency conditions required for sale in the following states: CA, HI, OR, RI, MA, NJ, ME, NY, NV, MD, WA, D.C.
- Durable Construction: MaxHold fabric internal beams provide superior air pressure retention, stability and lightweight portability. Surrounded by a 3-layer Tritech outer layer, this hot tub is proven to be puncture- and damage-resistant. Freeze Shield automatic heating function protects pump and liner from damage due to cold weather.
- Control at Your Fingertips: Compatible with the Bestway Connect app that allows you to control the temperature, timer, filter and massage system from the palm of your hand. The Power-Saving Timer allows you to control the temperature of the water up to 40 days in advance.
- Convenient Features: Equipped with a pump that quickly inflates the hot tub and an easy-to-reach digital control panel to heat water up to 104˚F (40˚C). ChemConnect dispenser maintains clean, clear water by evenly dispersing the proper amount of chlorine.
Plan for filled weight, not just the empty shell
A hot tub’s load changes substantially when filled and occupied. Geneva’s listed filled weight is 5,470 lb; Makena’s is 5,365 lb. Caldera says the Makena figure includes occupants assumed to average 175 lb each. The Tahitian and J-365 sources list dry weight but do not state filled weight, so do not estimate or compare their filled loads from those dry figures. Ask the dealer for the applicable filled-load data and have a qualified local professional assess the supporting surface.
Confirm electrical service and configuration
The J-365 page specifies North American 240 VAC options at 40A, 50A or 60A. That is not a universal installation instruction: confirm the selected configuration, circuit requirements and local code with the dealer and a qualified electrician. Do not infer the electrical requirements for the Caldera models from the specifications listed here.
Rank #3
- Heated Air Bubble Technology: Immerse yourself in heated air bubbles that relax your body, melt away stress, and leave you feeling rejuvenated. The heating system adjusts to fit your personal temperate preference, for an optimal spa experience.
- Energy-Efficient Spa Cover: Keep the water warmer, longer, with high-density thermal-resistant foam that locks in heat and minimizes loss. This energy-efficient hot tub cover boosts performance, improves efficiency by up to 50%, and lets you enjoy longer, more relaxing spa sessions.
- Fiber-Tech Beam Construction: The plush, supportive inflatable hot tub creates a luxurious escape, while advanced Fiber-Tech Technology delivers lasting strength and stability—so you can unwind with total peace of mind.
- Hard Water Treatment System: Bask in outdoor spa sessions with soft water thanks to the built-in Hard Water Treatment System. By reducing harsh mineral buildup, the treatment system extends the life of your backyard spa.
- Easy Access Filter Replacement: Upgrade your spa with the Titanium Cell Saltwater Conversion Kit (PN# 25830, sold separately). Simply insert the cell, add 100% natural salt, and enjoy clearer water, softer skin, and a more relaxing, chlorine-free spa experience.
Choose by fit and priorities, not a supposed universal winner
- Consider Geneva if its stated six-adult capacity, 55 jets and listed filled weight fit your space and installation plan.
- Consider Tahitian if its 7 ft square footprint and 375-gallon volume suit your site; obtain the missing filled-weight and configuration details before committing.
- Consider Makena if its 7 ft 5 in square footprint, 395-gallon volume and published filled-weight figure work for your site.
- Consider J-365 if its 6–7-person published capacity and open-seating design appeal to you; verify dimensions, electrical configuration and filled weight for the exact model.
These are comparison prompts, not rankings. Jet count alone does not establish comfort or performance, and the cited specifications do not provide a common basis for comparing warranty coverage, care systems, insulation or total cost.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Check the site, service and total cost before ordering
Request a written, itemized quote that identifies the precise model year and configuration. Confirm delivered price, availability, delivery route, installation scope, electrical work, required base, warranty terms and who provides service in your area. Ask which sanitation and filtration system is included, what routine care it requires, and what cover or insulation features are part of the quoted model. None of those local or changing details is established by the product specifications above.
Rank #4
- ✔ EASY-ACCESS FILTER REPLACEMENT – Integrated control box design for hassle-free cartridge filter replacement
- ✔ FIBER-TECH BEAM CONSTRUCTION – Innovative Fiber-Tech Technology offers superior structural stability while maintaining a comfortable surface for a warmer, luxurious, and refreshing spa experience for couples and adults
- ✔ HARD WATER TREATMENT SYSTEM – Built-in Hard Water Treatment System makes water gentler on skin, clothes and the entire spa system; hard water buildup limits water flow and reduces the life of your spa
- ✔ HEATED AIR BUBBLE TECHNOLOGY – The Positive Temperature Coefficient (PTC) heater is designed to maximize heat transfer to the water, while ensuring the highest level of safety, performance, and longevity
- ✔ ENERGY EFFICIENT SPA COVER – High density thermal-resistant foam provides extra insulation and minimizes heat loss; this cover enhances the Spa performance while improving the energy efficiency by as much as 50%
Water care and hot-tub safety
Hot-tub water can spread germs that cause respiratory, skin or gastrointestinal illness. The CDC advises keeping water at or below 104°F (40°C), checking disinfectant and pH with test strips, and following its user guidance of at least 3 ppm chlorine or 4–8 ppm bromine and pH 7.0–7.8. Use the appropriate test product and follow its directions. CDC: What You Can Do to Stay Healthy in Hot Tubs.
Temperature alone does not control Legionella. The CDC identifies sediment and biofilm, temperature, water age and disinfectant residual as factors affecting Legionella growth; its hot-tub control toolkit gives a pH range of 7.2–7.8 in that control context. Do not confuse that toolkit-specific range with the CDC user page’s pH guidance. Follow the applicable operating instructions, maintain disinfectant, and clean surfaces: the toolkit recommends vigorous scrubbing when draining. CDC: Controlling Legionella in Hot Tubs.
Legionella can spread when a person inhales contaminated mist. The CDC identifies older adults, current or former smokers, people with chronic lung disease and people with weakened immune systems as groups at higher risk. Read its guidance on protecting yourself from Legionella in hot tubs.
A 2023 CPSC recall notice covered certain Sundance and Jacuzzi brand tubs because inaccurate temperature readings could create a thermal-burn hazard. The notice reported 185 reports of inaccurate readings and no injuries. That dated notice does not mean every current model is affected. Check the model and serial number against current recall information; for a tub confirmed to be affected, follow the recall instructions and verify water temperature with an accurate external thermometer before entering. CPSC recall notice.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
