The Complete Float Tank Buyer's Guide
Everything you need to know about buying a sensory deprivation tank, isolation tank, or flotation pod — whether it's for your home or a commercial float center.
What Is a Float Tank?
A float tank — also known as a sensory deprivation tank, isolation tank, or flotation tank — is an enclosed chamber filled with roughly 10 inches of water saturated with 800–1,200 pounds of Epsom salt (magnesium sulfate). The extremely high salt concentration creates a buoyant solution that allows a person to float effortlessly on the surface, similar to the Dead Sea.
The water is heated to skin temperature (approximately 93.5°F / 34.2°C), and the tank is designed to block out light and sound. This environment enables flotation therapy (also called float therapy or REST — Restricted Environmental Stimulation Therapy), which is used for deep relaxation, stress relief, pain management, meditation, and athletic recovery.
You may also hear float tanks referred to as float pods, float cabins, float chambers, or REST chambers. These are all variations of the same concept, differing mainly in shape and design rather than function.
Float tanks were invented in 1954 by neuroscientist John C. Lilly for sensory deprivation research. Since then, they've evolved from laboratory equipment into commercial wellness products used by float centers, spas, sports teams, and private individuals worldwide.
Types of Float Tanks
Float Pods
The most common modern design. Float pods feature a rounded, egg-like or clamshell enclosure with a hinged lid. They're compact, self-contained, and typically include built-in filtration, heating, and lighting systems. Popular for both home and commercial use.
Typical dimensions: 8' L × 5' W × 4.5' H | Best for: Home users, small float centers
Float Cabins
Larger, room-like enclosures that offer more interior space than pods. Float cabins are walk-in units with a door rather than a lid, making them feel less enclosed — a good option for those who are claustrophobic. They're a popular choice for commercial float centers.
Typical dimensions: 8' L × 5' W × 7' H | Best for: Commercial float centers, taller users
Open Float Pools
Open-top pools or tubs without a lid or enclosure. These offer the most space and eliminate any feeling of confinement. They don't provide full sensory deprivation (ambient light and sound are present), but they're excellent for accessibility and for floaters who prefer an open environment.
Typical dimensions: 8' L × 5' W × 1.5' H | Best for: Accessibility, ADA compliance, luxury spas
Float Tents
Budget-friendly options that use a fabric tent structure over an inflatable or rigid base. Float tents are the most affordable way to float at home, though they typically require more manual setup and maintenance. They may not offer the same level of sound isolation as hard-shell designs.
Typical dimensions: 8' L × 4' W × 4' H | Best for: Budget home floating, renters
How Much Does a Float Tank Cost?
Float tank prices vary significantly based on the type, brand, condition, and whether you're buying new or used. Here's a general overview of what to expect:
New Float Tanks
- Float Tents: $1,500 – $4,000
- Float Pods: $10,000 – $35,000
- Float Cabins: $20,000 – $50,000
- Open Pools: $15,000 – $40,000
- Commercial-Grade: $25,000 – $60,000+
Used Float Tanks
- Float Tents: $500 – $2,500
- Float Pods: $5,000 – $20,000
- Float Cabins: $10,000 – $35,000
- Open Pools: $8,000 – $25,000
- Commercial-Grade: $12,000 – $40,000+
Buying a used float tank can save you 30–60% compared to new, making it a smart option for home floaters and float center owners looking to reduce startup costs.
Top Float Tank Brands
The float tank market has several established manufacturers known for quality, reliability, and innovation. Here are some of the most recognized brands you'll encounter when shopping for a float tank:
Dreampod
One of the most popular pod manufacturers worldwide. Known for the V-Max (extra-large), Steelpod, and Sport models. Offers both commercial and home units.
Royal Spa
Premium float pod manufacturer producing durable, high-quality units. A trusted name in the commercial float industry with a reputation for longevity.
Samadhi Tank Co.
One of the original float tank manufacturers, in operation since the early 1970s. Known for classic cabin-style isolation tanks with proven designs.
Zen Float Co.
Creators of the Zen Float Tent, one of the most affordable float tank options available. Also offer the Zen Float Tank for a more rigid home solution.
Superior Float Tanks
Canadian manufacturer known for high-end commercial float tanks and cabins. Popular among float center operators for their build quality and customer support.
Float Lab
Known for their open-pool and cabin-style tanks used in some of the most renowned float centers. Designed for the serious float enthusiast and commercial operators.
Float Tank Buying Guide: What to Look For
Whether you're buying a new or used sensory deprivation tank, here are the most important factors to evaluate before making a purchase:
1. Condition of the Shell & Structure
Check for cracks, warping, discoloration, or salt crystallization on the exterior. The interior lining should be smooth and free of peeling or staining. Fiberglass and acrylic shells are most common — inspect for any signs of structural weakness.
2. Heating & Filtration Systems
Ask whether the heater and pump are original and in working condition. Inquire about the last time the UV bulb was replaced and whether the filtration system is included. Replacement heating elements and pumps can cost $500–$2,000 each.
3. Electrical Requirements
Most float tanks require either a standard 120V/15A outlet or a dedicated 240V/30A circuit. Commercial-grade tanks often require 240V. Make sure your space can accommodate the electrical requirements before buying, as adding a new circuit can cost $200–$500.
4. Dimensions & Space Requirements
Measure your intended space carefully. Remember to account for the tank itself plus clearance for opening the lid/door, accessing the pump, and performing maintenance. Most tanks need at least 2–3 feet of clearance on each side.
5. What's Included
A complete float tank setup should include: the tank/pod/cabin, heater, pump, filtration system (cartridge or bag filter), UV or ozone sanitizer, and ideally the Epsom salt. Ask the seller to specify exactly what's included — missing components can add thousands to your total cost.
6. Delivery & Installation
Float tanks are heavy and bulky. Shipping costs can range from $500 for local delivery to $3,000+ for cross-country freight. Some sellers offer professional installation; others sell as-is for pickup only. Factor delivery costs into your total budget.
Float Tank Maintenance Basics
Proper maintenance is essential to keeping your float tank clean, safe, and functional. Whether you're using an isolation tank at home or running a commercial float center, here are the key maintenance areas to stay on top of:
Water Chemistry
Test pH (target 7.0–7.4) and specific gravity (1.25–1.30) weekly. Maintain proper salt concentration by topping up Epsom salt as needed. Test for alkalinity and add hydrogen peroxide as a supplemental sanitizer between floats.
Filtration
Run the filtration system between every float session (most systems run automatically). Replace or clean filter cartridges per the manufacturer's schedule — typically every 1–3 months depending on usage volume.
UV / Ozone Sanitation
Most modern float tanks use UV-C light and/or ozone generators to kill bacteria and viruses. UV bulbs should be replaced every 6–12 months. Ozone generators require periodic inspection and part replacement.
Salt Damage Prevention
Epsom salt is corrosive to many metals and finishes. Wipe down the exterior regularly, check for salt creep around seals and hinges, and protect surrounding flooring with waterproof mats or coatings. Keep the room well-ventilated to reduce humidity.
Starting a Float Center
If you're considering opening a commercial float center or float spa, buying used float tanks can significantly reduce your startup costs. Here are some key considerations for getting started:
Location & Zoning
Choose a location with adequate space, plumbing infrastructure, and appropriate commercial zoning. Float centers are typically classified as wellness or spa businesses. Most centers start with 2–4 float rooms plus a lobby, shower area, and changing rooms.
Health Department Requirements
Regulations vary by jurisdiction. Many states and provinces require float centers to meet specific sanitation standards, water quality testing, and ventilation requirements. Some require float tanks to be permitted similarly to public pools or spas. Research your local requirements before investing.
Equipment Budget
A typical 3-tank float center requires $60,000–$150,000+ in float tank equipment alone when buying new. Purchasing quality used tanks can cut this cost by 30–60%. Budget additional funds for build-out, plumbing, electrical, insurance, and initial Epsom salt inventory (3,000–4,000+ pounds for three tanks).
Insurance & Liability
Float centers need commercial general liability insurance and may need specific coverage for wellness services. Waivers are standard in the industry. Work with an insurance broker experienced in spa or wellness businesses.