How it Works
We use high quality deep freezers as the mechanism for both cooling the water as well as acting as the tub. Each freezer is waterproofed by hand, as we meticulously prepare the surface correctly, and then apply 100% waterproof, 6,000 PSI strength marine-grade sealants over the seams, in order to waterproof the unit and ensure the water stays in the tub and does not enter the interior of the freezer.
Step 1: Waterproofing
​
​
At Zen Freeze, we know the power of deliberate cold water exposure, which is why we dedicated ourselves to building affordable cold plunges for all. Rather than using a tub with an external chiller unit, which is expensive, not energy efficient, and space-consuming, we implement a better way to get cold, clear water whenever you want it.
​
Step 2: Temperature Control
We then equip each unit with a temperature regulator, which the freezer plugs into. Simply place the temperature probe in the water, plug the freezer into the "cooling" outlet of the thermostat, plug the thermostat into the wall, and let the technology do the work.
The temperature regulator will identify the current water temperature, and will automatically turn the freezer on until it reaches the desired temperature that you set on the device. Once it reaches this temperature, the temperature controller will automatically turn the freezer off until the water slowly warms back up again, and then this process repeats. In this way, the ice bath will maintain whatever water temperature you desire 100% automatically.
​
Â
Each unit comes with a large, waterproof, submersible aquarium pump that filters the water and keeps it circulating. Simply place this on the floor of your tub and the pump will filter 290 gallons of water per hour, filtering out any particles that accrue over your usage, and maintaining water cleanliness for longer.
​
Each month, simply remove the mesh filter inside the pump, rinse off any obvious debris, and then soak it in a 9:1 water to bleach solution overnight. The next morning, rinse with water and then place it back in the pump to continue filtering. This can be done dozens of times before needing a replacement filter.
Step 3: Water Filtration
​
Â
In addition to the filter pump, each unit also comes with an o-zone generator and a timer for automatic nightly watere sanitation. O-zone is one of the most effective non-chemical disinfectants, and running this device for just 30 minutes every night will maintain clean, clear, water for many months at a time.Â
​
Simply plug the o-zone machine cord into the timer, and plug the timer into the GFCI extension cord. Type in what time you want the device to clean your water in the "on" and "off" time slots of the timer. Each device comes pre-programmed to run between 2:00-2:30AM PST, but set whatever time you will not be around the device. Leave the o-zone tube in the water, and allow the o-zone machine to run for 30 minutes every night when you are not using it. That's it! Your water will stay clean for months without any additional maintenance.
Step 4: Water Sanitization
​
Â
Wait a second-- isn't mixing electronics and water a bad idea? If done carelessly, yes! That's why we have taken every precaution to make this as safe as possible. Every piece of equipment, including the freezer, temperature controller, the filter pump, timer, and o-zone generator all plug into the master GFCI extension cord we provide, that you then plug into the wall outlet.
Â
This "Ground Fault Circuit Interruptor" or "GFCI" cord is a fast-acting circuit breaker that is designed to automatically shut off all electric power in the event of a ground-fault within as little as 1/30th of a second! Even with this safety measure in place, we finally advise plungers to simply unplug this cord each time before hopping i for further peace of mind, and then simply replug the cord back into the wall once finished. Happy plunging!Â
Step 5: Safety