Horizontal Tub – Components & Functions

It is very helpful to get familiar with your tub and how it all works. Below is an overview of each major component of your Horizontal Cold Creek Tub and what it does.

At Cold Creek, every tub is built in-house by our team. As the manufacturer, we take pride in understanding every detail of our tubs and are always happy to further explain any component or answer any questions you may have.

Tub Body

The tub body is made with durable roto-molded polyethylene and injected with high-density foam insulation (similar to Yeti coolers). It is fully insulated to help maintain water temperature efficiently while providing a durable and comfortable cold plunging experience. The tub body is extremely durable and very easy to clean.

EVA Foam Decking

The EVA foam decking provides a soft, non-slip surface around the tub for added comfort and safety when entering or exiting the tub. We use EVA foam on the lid, tub, and step surfaces. It is the same material commonly used on wakeboard boats.

Chiller

The ½ HP chiller is responsible for cooling the water to your desired temperature. It remains in standby mode and only turns on when needed to cool the tub back to your set temperature. The chiller operates within a small temperature deadband of approximately 3 degrees for efficiency.

Pump

The Danner pump keeps water moving through the system by circulating it between the tub, filter, ozone system, and chiller. Proper circulation helps maintain clean, balanced water. The pump continuously circulates water through the system during operation.

Ozone Generator & Timer

The ozone system helps sanitize the water by injecting ozone (O₃), a powerful natural oxidizer that helps break down bacteria, odors, and other contaminants in the water. It works quietly in the background as water circulates through the system, helping purify the water, reduce chemical usage, and extend the time between water changes.

Ozone does have a distinct smell, which is completely normal and harmless. It is completely safe to plunge while the ozone system is running, though we pre-set the system to run during the night for convenience.

The timer, located on the left side inside the equipment compartment, controls when the ozone system runs automatically each day.

Your timer comes preset to run for approximately 3–5 hours during the night. If you would like to adjust the timer, you can simply push the small pins in or pull them out to change the schedule. Each pin represents 30 minutes of ozone runtime. For example, 8 pins pushed in equals 4 hours of ozone operation. Any pins pushed down on the timer indicate the periods when the ozone system will automatically turn on.

 

Oversized Filter

The massive 20-inch filter removes debris, dirt, and particles from the water as it circulates through the system. Regular filter cleaning and replacement are important for maintaining clean water, proper circulation, and optimal performance.

Draining Spigot

There is a built-in hose spigot for easy draining. Simply attach a hose to the brass hose spigot, open the blue valve on the spigot, and keep your tub plugged in while it drains so the pump can help move water through the system. Once the tub is fully empty, immediately turn off or unplug the tub to avoid damaging the pump from running dry. Tip: The shorter the hose, the faster the tub will typically drain.

Valves 

Whenever there is water in the tub and the system is running, both valves must remain in the OPEN (parallel) position.

The valves should be in the parallel position (aligned with the plumbing line) to allow proper water flow. See video here & image below for an example of the correct valve position.

You may want to close the valves anytime you need to stop water from flowing out of the tub. For example, when changing the filter or disconnecting the chiller, you can close both (2) valves to stop water flow. If you close the valves, be sure to return both valves to the OPEN parallel position before turning the system back on or continuing use.