Filtration In Depth
Solving a Universal Float Tank Problem
The Problem Faced by Conventional Float Tanks
Traditional Float Tanks rely on a continuous recirculation approach while the solution remains inside the tank, similar to the system used in a hot tub. This filtration method can overlook certain areas within the tank where the solution doesn’t circulate effectively. When some Float Tanks advertise over 100% filtration, they’re referencing the solution volume they can process between sessions.
A float tank containing 600L of solution, paired with a pump capacity of 300 litres per minute, would theoretically achieve 300% “filtration” during a 6-minute client transition. While this may sound attractive, the results aren’t as good as they seem.
Imagine you have a 100L bath tub filled with water and glitter that you wish to remove. You are given two ways to remove the glitter.
- Remove a 1L bucket of water, filter out the glitter, then pour it back into the tub, and repeat this for 100 buckets.
- Remove all 100L of water into a new container while pouring it through a filter. Then pour the 100% filtered water back in to the bath tub.
The issue with the first method is that while you have filtered out the volumetric equivalent of water, you cannot 100% guarantee that all the glitter will be removed. The glitter would redistribute around the water constantly and it would be extremely difficult to remove all of it. This is how a traditional float tank cleans itself. Dirt, skin particles and other contaminants float and redistribute constantly, making it extremely difficult to remove all contaminants.
To put this in a real world scenario, if a tank was guaranteed to remove 75% of contaminants per 600L filtered, there would be 25% of contaminants remaining after the first pass, 6.25% remaining after the second pass and 1.56% remaining when the new customer enters the tank. In order to hit 99.99% filtration, 3000L would have to be circulated.

The ENSO Solution
In order to overcome the filtration problem that plagues conventional float tanks, the ENSO uses a filtration method that removes all solution from the pod. This guarantees that all the solution is run through the filters. It guarantees all the solution is run through the UV. This process is repeated every time that the ENSO is emptied or filled. Each filtering run of the ENSO cleans the solution by 99.999999%. By comparison, the theoretical tank from before would have to circulate its entire tank’s solution 14 times to match this value.
The Cleaning Cycle
Total Filtration for Absolute Cleanliness
The ENSO is equipped with twin, two stage filters. The solution is first run a large course filter. This removes larger debris and prepares the solution for the second stage.
The second stage of filtration runs the solution though industry-leading filters, consisting of two 1-micron bag filters that are approximately 70 times smaller than a human hair. These filters provide maximum filtration without compromising the speed of the fill and empty times. The filters are so advanced that they can even remove hair dye colour from the water, which demonstrates their exceptional effectiveness in removing even the tiniest of particles.
Absolute Filtration


The filters in the ENSO Float Tank use absolute filtration, a superior filtration method compared to nominal filters. Absolute filters are designed to remove particles of a specific size with a high degree of efficiency and consistency, whereas nominal filters have a wider range of particle sizes that they can capture, but with lower overall efficiency.
Absolute filtration ensures that particles of the specified size or larger are removed from the water with near-100% efficiency. This is important for float tanks, as even tiny particles can affect the quality of the experience. The use of absolute filtration in the ENSO Float Tank’s filters further highlights their high level of effectiveness and reliability.
Disinfection with UV
Following the two-stage filtering process, the solution is then exposed to a UltraViolet sterilisation system. This effectively eliminates any micro-organisms that may be left over, complementing our class-leading 1-micron filters.
The ENSO Float Tank’s advanced UV disinfection system – powered by the superior technology of amalgam lamps. Our state-of-the-art system offers unparalleled germicidal efficacy, destroying 99.9% of harmful microorganisms. Compared to standard UVC lamps, our amalgam lamps provide a remarkable 2-3 times greater intensity of UVC radiation, ensuring maximum disinfection with every use. With the ENSO Float Tank’s cutting-edge UV technology, you can be confident that your float sessions are as safe and hygienic as possible.
Disinfection with UV
The Exo Float Tank’s advanced UV disinfection system – powered by the superior technology of amalgam lamps. Our state-of-the-art system offers unparalleled germicidal efficacy, destroying 99.9% of harmful microorganisms. Compared to standard UVC lamps, our amalgam lamps provide a remarkable 2-3 times greater intensity of UVC radiation, ensuring maximum disinfection with every use. With the Exo Float Tank’s cutting-edge UV technology, you can be confident that your float sessions are as safe and hygienic as possible.

Top Up with Hydrogen Peroxide
Once a day, the ENSO Float Pod is automatically dosed with Hydrogen Peroxide. This kills up to 99.999% of bacteria whilst leaving no harmful by-products. The automatic dosing function is fully integrated in the software, allowing you to set when to dose, and with the ENSO’s highly accurate dosing pump, how much to dose. Manual dosing is also available via the software for those busier days.


Need float tank supplies? We can provide you everything you need to offer floatation therapy at your business
Carefully Considered Design
A specification of the ENSO Float Pod design process was to minimise downtime on maintenance. Anything that needs replacing is easy to access and clear of any obstructions. Change the filters by simply removing the filter lids, replace the filters, and reattach the lids. Auto dosing Hydrogen Peroxide requires no tools to change, just replace the bottle.
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