With the rising popularity of floatation therapy in recent years, more and more float tanks are being produced.

In the market, we can see a variety of float tank shapes, such as the common egg-shaped, rectangular, and shell-shaped tanks.

Next to these tanks, we usually see a control host connected to the tank (sometimes it might be hidden).

Among the control hosts , some look quite big, about 1.9m in height, 0.7m in width, and 1.2m in length.

Others seems much smaller, usually only 1m in height, about 0.7m in width, and 0.6m in length.

Both of them have the necessary functions for floating—heating, purification, lighting, music, etc.

However, in most cases where the functions are nearly identical, we’ll find that larger control hosts tend to be more expensive than smaller ones.

So, what's the difference between these two types of float tanks?

Initially, most float tanks used were paired with smaller control hosts.

These small-control float tanks store the float solution inside the tank. After the customer finishes their float, the small control unit pumps the solution out of the tank, purifying it through filters, UV light, and other processes before circulating it back into the tank.

Clearly, this tank-to-tank circulation method is not sufficient.

Typically, a single cycle only purifies about 95% of the solution, and in most cases, it requires four or more cycles to purify over 99% of the solution.

Soon, people realized that since the float solution flows through the system quickly, neither UV light nor ozone had enough time to effectively disinfect the solution—both methods require time to take effect.

As a result, users needed to change the solution frequently, which leads higher costs.

Furthermore, people will found that since the solution was stored in the tank for extended periods, evaporation occurred.

If the tank was left unused for a while, as the water evaporated, the Epsom salt in the solution would crystallize out.

These crystals not only required time to clean but sometimes even clogged the pump, causing the tank to malfunction.

To fix these problems, float tanks with larger control hosts and built-in water tanks were introduced.

The biggest difference between large-control and small-control float tanks is that the former has a built-in water tank.

The circulation method is not tank-pump-tank but tank-pump-water tank-tank.

After customer finished float, the large control host will pump all the float water into the built-in water tank for purification before reinjecting it into the tank.

Thanks to this design, large-host float tanks only need one cycle to purify over 99% of the solution.

This process usually takes only 10-15 minutes. So that will shorten the wait time between customers, making the float center more efficient.

Additionally, because of the space provided by the built-in water tank, ozone and UV sterilization methods can fully react with the water in an enclosed environment,

This will improve the sterilization effect and solving issues such as the yellowing or foul-smelling of float water.

Typically, the solution in small-control float tanks can only be safely used about 100 times or less.

With a lager control host, float water can be used over 400 times. Some high-end models can even extend this number to over 1,000 times, greatly reducing operational costs.

But that’s not the only advantage of large-host systems.

During daily operations, the float solution can be pumped into a sealed, insulated tank, reducing heat loss and making the system more energy-efficient and eco-friendly.

Moreover, the sealed water tank reduces evaporation rates, effectively solving the problem of solution crystallization.

In summary, large-control float tanks offer a more scientific water purification method, higher operational efficiency, shorter waiting times, and lower use costs.

Of course, the larger control unit also gives the floatclub a more professional appearance, which could do some benefits business development.

However, small-control float tanks are not without their advantages. They are more compact and can be installed in smaller spaces, or more float tanks can be arranged in the same space, leading to better space utilization.

And the most important is

—they’re cheaper, aren’t they?