Vigor Cold Plunge User Manual 2025

Owner's Archive

Locating Your Cold Plunge Serial Number: The serial number label for the Vigor™ is located inside the technical compartment. The access panel to the technical compartment is on page 7. You will need the model and serial number of your cold plunge to properly register it and activate the warranty. Please record your cold plunge information below.

DATE OF PURCHASE:

PURCHASED FROM:

COLD PLUNGE MODEL:

SERIAL NUMBER:

Please read this owner's manual carefully, as it is designed to provide you with the information you will need to safely operate your cold plunge.

IMPORTANT: Watkins Wellness reserves the right to change specifications and/or design without prior notice or obligation.

Cold Plunge Specifications

• Ambient operating temperature range: 20°F (-7°C) to 100°F (38°C).
• NOTE: The heat pump enters error mode when the ambient temperature is outside the range.
• Water temperature setting range: 40°F (5°C) to 80°F (27°C).
• *IMPORTANT: "Filled weight" and "wet weight" of the spa include the weight of occupants (assuming an average occupant weight of 175 lbs [80 kg]).

ATTENTION

DO NOT USE THE COLD PLUNGE WITHOUT READING THIS MANUAL

Failure to read this manual and follow its instructions may result in dangerous operation and/or permanent damage to your portable cold plunge.

Most cities, counties, states, and countries require a permit for outdoor construction and electrical work. Additionally, some communities have codes governing the fencing or self-closing barriers to prevent children under five from accessing a pool or cold plunge unsupervised. Be sure to check specific requirements with your local agencies.

If you need additional information and/or assistance, please contact your local dealer.

SAFETY INFORMATION

IMPORTANT SAFETY INSTRUCTIONS

READ AND FOLLOW ALL INSTRUCTIONS

PREVENTING RISK TO CHILDREN

DANGER: RISK OF DROWNING FOR CHILDREN. Every effort should be made to prevent children from misusing the spa. To prevent an accident, please ensure that children can access the cold plunge only under the close supervision of a responsible adult.

WARNING: To reduce the risk of injury, never allow children to use this product without close adult supervision.

To reduce the risk of injury, it is recommended to use higher temperatures for young children. Children are very sensitive to cold water.

WHAT TO DO:

• Ensure that the safety cover locks (with a child-resistant opening device) are securely locked after using the cold plunge for the safety of young children. All cold plunges are equipped with a locking cover that meets ASTM F1346-91 standards for safety covers.
• Test the water with your hand to ensure it is at the proper temperature before allowing children to enter the cold plunge. Children are very sensitive to cold water.
• Remind children that wet surfaces are very slippery. Ensure children exercise extreme caution when entering or exiting the cold plunge.

WHAT NOT TO DO:

• Do not allow children to climb on the cold plunge cover.
• Do not allow children to access the cold plunge unsupervised.

AVOID THE RISK OF ELECTRIC SHOCK

Risk of electric shock

• Connect only to a GFCI-protected, grounded source.
• Do not bury the power cord. Burying the power cord presents a risk of electrocution or serious injury if a cord specifically designed for burial is not used or if burial is not done correctly.
• A grounding connection (cord connector) is provided on the control box inside the unit. This allows for the connection, in accordance with local requirements, of a solid copper wire of at least 10 AWG (6 mm²) to be run between this unit and any metal object (water pipe, electrical equipment housing, or conduit) within 5 feet (1.5 m) of the spa.

WARNING: To reduce the risk of electric shock, change damaged cords immediately. Failure to do so may result in fatal injury or serious injury from electric shock.

Your 115-volt cold plunge is equipped with a Ground Fault Circuit Interrupter (GFCI) for user and equipment protection. To ensure the proper functioning of this important safety device, test as follows according to the electrical configuration.

115 VOLTS, CORD CONNECTION

• The GFCI is located at the end of the power cord. Before each use and while the spa is operating, press the TEST button. The unit should stop operating, and the GFCI power indicator light should turn off.

Wait 30 seconds, then reset the GFCI by pressing the Reset button. The GFCI power indicator light will illuminate, restoring power to the cold plunge. If the interrupter does not function in this manner, it may indicate an electrical malfunction and the possibility of electric shock. Unplug until the problem is corrected.

DANGER: RISK OF ELECTRIC SHOCK

The cold plunge must be installed at least 5 feet (1.5 m) from all metal surfaces. It is possible to install the cold plunge less than 5 feet (1.5 m) from a metal surface provided that each metal surface is permanently connected by a solid copper No. 10 AWG (6 mm²) ground wire, connected to the grounding connector of the junction box, provided for this purpose, as long as compliance with the national electrical code is respected.

Do not place any electrical appliances, such as a lamp, telephone, radio, or television, within 5 feet (1.5 m) of the cold plunge. Failure to observe the safety distance carries a risk of fatal injury or may cause serious injury from electric shock if an electrical appliance falls into the cold plunge.

Install your cold plunge so that the drain outlets are a safe distance from the electrical box and all electrical components.

WHAT TO DO:

• Ensure that the cold plunge is properly connected to the mains supply – call a qualified electrician.
• Disconnect the cold plunge from the electrical supply before draining or performing maintenance or repair on electrical components.
• Test the GFCI(s) before each use.

WHAT NOT TO DO:

• Do not use the cold plunge when the technical compartment door is removed.
• Place electrical appliances within 5 feet (1.5 m) of the cold plunge.
• Use an extension cord to connect the cold plunge to its power supply. The extension cord may not have proper grounding, and the connection may present a risk of electric shock. Extension cords can cause voltage drops, thus overheating the jet pump motor and damaging the motor.
• Do not attempt to open the electrical control box while the unit is energized.

RISKS TO AVOID

DANGER: RISK OF INJURY

• NEVER sit in the filter compartment area. You could: a) Limit the suction/vacuum process of the pump filter. b) Damage components. Therefore, do not sit in this area as you could injure yourself. If components in this area are damaged, replace them immediately!
• The suction fittings (strainers) of the cold plunge are sized according to the specific water flow created by the pump. Never replace a strainer with one that has a lower flow rating.
• There is a risk of slipping or falling. Remember that wet surfaces can be very slippery. Exercise caution when entering and exiting the cold plunge.
• Never operate the cold plunge when suction fittings are broken or missing.
• Individuals with infectious diseases should not use the cold plunge.
• Keep all loose clothing or dangling jewelry away from rotating jets and other moving components.

EFFECTS OF MEDICAL TREATMENTS

• The consumption of drugs, alcohol, or medications before or during the use of the cold plunge may lead to a risk of loss of consciousness, accompanied by a risk of drowning.
• Individuals taking medication should consult a doctor before using the cold plunge due to the risks of drowsiness and changes in heart rate, blood pressure, or circulation associated with certain therapeutic substances.
• Individuals taking medications that cause drowsiness, such as tranquilizers, antihistamines, or anticoagulants, should refrain from using the cold plunge.

HEALTH CONDITIONS AFFECTED BY COLD PLUNGE USE

• Pregnant women should consult their doctor before using the cold plunge.
• Individuals suffering from obesity, heart disease, hypotension or hypertension, circulatory disorders, or diabetes should also seek advice from their doctor before using the cold plunge.

DIRTY WATER

• Keep the water clean and disinfect it with adequate chemicals. The recommended levels for your cold plunge are as follows:
  Free Chlorine Available: 3.0 - 5.0 ppm
  Total Alkalinity: 40 - 120 ppm
  Water pH: 7.2 - 7.8
  Calcium Hardness: 75 - 150 ppm
• IMPORTANT: Add all cold plunge water chemicals to the filter compartment.
• Clean the filter cartridges at least once a month to remove debris and mineral deposits that could affect the performance of the hydro-massage jets, reduce water flow, or trigger the safety thermostat, which will interrupt the operation of your cold plunge.

AVOID THE RISK OF HYPOTHERMIA

Prolonged immersion in cold water can cause HYPOTHERMIA, a pathological condition that occurs when the internal body temperature drops several degrees below the normal temperature of 98.6°F (37°C).

SYMPTOMS OF HYPOTHERMIA INCLUDE:

• Slow and shallow breathing
• Slurred speech or mumbling
• Shivering
• Weak pulse
• Drowsiness
• Slurred speech
• Lethargy
• Confusion
• Unconsciousness
• Bright red or cold skin (in children)

EFFECTS OF HYPOTHERMIA INCLUDE:

• Respiratory and cardiac system failure
• Nervous system failure
• Inability to recognize the need and time to exit the cold plunge
• Unawareness of imminent danger
• Physical inability to exit the cold plunge
• Fetal damage in pregnant women
• Loss of consciousness leading to a risk of drowning.

WARNING: Alcohol, drug, or medication consumption can significantly increase the risk of hypothermia in a cold plunge.

REDUCE THE RISK OF INJURY:

• The cold plunge water should not drop below 40°F (4.5°C). Temperatures between 40°F (4.5°C) and 80°F (26.5°C) are considered safe for healthy adults.
• Lower water temperatures are not recommended for prolonged use (over 5 minutes) and 2 minutes for young children. Prolonged use can cause hypothermia.
• Pregnant women or those who may become pregnant should limit the spa water temperature to 80°F (26.5°C). Failure to comply with this instruction may result in permanent fetal malformations.

AVOID THE RISK OF SKIN BURNS:

• To reduce the risk of injury, the user should measure the cold plunge water temperature with an accurate thermometer before entering the water.
• Test the water temperature with your hand before entering the cold plunge.

SAFETY PANEL

A SAFETY PANEL is included in the owner's package. The panel, which is one of the requirements for official product referencing, must be permanently installed where it is visible to cold plunge users.

IMPORTANT INSTRUCTIONS ON THE COLD PLUNGE

We strongly recommend that you read and follow the important information below.

WHAT TO DO:

• Replace and lock the cover on the cold plunge after use, whether it is full or empty.
• Follow the recommendations for cleaning and maintenance of the cold plunge indicated in this manual.
• Use only approved accessories and chemicals and cleaning products recommended by Watkins.

CONSERVE THESE INSTRUCTIONS

WHAT NOT TO DO:

• Do not leave the cold plunge exposed to sunlight without water or a cover in place. Exposure to direct sunlight can damage the shell material.
• Do not roll or slide the cold plunge on its side. This can damage the side trim.
• Do not lift or carry the cover using the cover attachments; always lift or carry the cover by the handles.
• Do not attempt to open the electrical control box. It contains no user-serviceable parts. Opening the control box by the cold plunge owner voids the warranty. If you experience a malfunction, carefully follow the instructions in the troubleshooting section. If you cannot resolve the problem, contact your authorized dealer. Many problems can be easily identified over the phone by authorized technicians.
• Do not spray water from a hose or other device directly into the vents on the side and rear panels. This could severely damage the cold plunge's electrical components, and such damage will not be covered by the warranty.

Beginner cold plunging involves the following:

1. Start with water between 50°F and 60°F (10°C and 16°C) if you have never cold plunged before.
2. Feel free to immerse your entire body up to your jaw.
3. Control your breathing and stay calm.
4. Exit as soon as you start to shiver (or before).
5. Gradually get used to icy temperatures.
6. Consider using cold water for 15 to 30 seconds at the end of your shower to start getting used to it.

INSTALLATION

PLANNING A LOCATION FOR YOUR COLD PLUNGE

Consider these factors when determining where to place your cold plunge.

SAFETY PRIORITY

Ensure that your cold plunge is positioned so that access to the left technical compartment and the rear panel is not blocked. Ensure that your installation complies with all local and municipal safety codes and requirements.

INTENDED USE OF THE COLD PLUNGE:

The intended use of your cold plunge will help you determine where to position it. For example, will you use it more for recreation or therapy? If your cold plunge is primarily for family recreation, allow ample space for activities and garden furniture. If you will use it more for relaxation and therapy, you will likely want to create a private space around the cold plunge.

DISCRETION:

Consider your surroundings in all seasons to determine the best options for discretion. Consider your neighbors' views when planning the location of your cold plunge.

VIEWS:

Consider the direction you will be facing when sitting in your cold plunge. Is there a particular view you would like to observe? It could be a spot where a gentle breeze is present during the day or offers a beautiful sunset in the evening.

ENVIRONMENT:

If you live in a climate with harsh winters and hot summers, it is convenient to have a changing area or house entrance near the cold plunge. A warmer climate may require shade to protect from the sun. Consider planting trees, shrubs, a patio cover, or perhaps a gazebo structure to suit your needs. Indoor installations require adequate ventilation. When the cold plunge is in use, small amounts of moisture may also be produced. This moisture can damage walls and ceilings over time. Special paint is available to resist moisture damage. Remember that the cold plunge needs to be drained periodically, so plan your environment accordingly. The 1/4" (0.64 cm) heat pump drain hose will need to be routed away from the cold plunge.

MAINTAINING CLEANLINESS:

Prevent dirt and leaves from entering your cold plunge by using concrete for paths and access areas. Check the location of drainage paths from gutters, trees, and shrubs.

ACCESS TO SERVICES:

Many people choose to install custom tile or wood around their cold plunge. If you are installing your cold plunge with custom decorative trim, remember to allow for service access. In case of service, a technician may need to remove the cold plunge's access panels. It is always preferable to design custom installations so that the cold plunge can still be moved or lifted off the ground.

A SOLID BASE:

Your new cold plunge needs a good, solid base. The area where your cold plunge is located must be able to support it, as well as the water it contains and the people using it. If the base is inadequate, it may shift or sink after the cold plunge is placed, causing stress on the shell or components. It is recommended to place the cold plunge on a 4-inch (10 cm) concrete slab with steel reinforcing bars throughout the slab. NOTE: Do not shim the cold plunge in any way, as this could deform the cabinet, voiding the warranty.

BE VIGILANT:

Damage caused by an inadequate or incorrect base is not covered by the warranty. It is the sole responsibility of the cold plunge owner to provide an adequate base for the cold plunge.

Ensure that the base on which the cold plunge is placed drains water away from the cold plunge. Adequate drainage will keep the components dry in case of rain or humid weather. The weight of your cold plunge must always be considered during installation. If you are installing it on a raised wooden deck or other structure, it is advisable to consult a civil engineer or contractor to ensure the structure will support the weight.

IT IS STRONGLY RECOMMENDED THAT A QUALIFIED AND LICENSED CONTRACTOR PREPARE THE BASE FOR YOUR COLD PLUNGE.

• It is recommended to use a reinforced concrete slab at least 4 inches (10 cm) thick for your cold plunge. The reinforcing bar or mesh of the slab must be secured to a connecting wire.

INDOOR INSTALLATION:

If you plan to install your cold plunge indoors, never forget certain elements. A floor drain is strongly recommended.

• Water should be drained through the drain located at the bottom left when draining the cold plunge (a garden hose is required to drain the cold plunge, as well as a place to drain the water).
• A 1/4" (6.4 mm) drain hose from the collection basin, 12 feet (3.7 m) long, is coiled and located inside the technical compartment. Remove this drain hose (place it in the cutout) and route it to a drain or other type of collection unit outside the cold plunge if it is installed indoors. NOTE: Several gallons of water may exit this hose each day. The external collection basin should not be higher than the basin that holds the heat pump.

Water will also accumulate around the cold plunge, potentially causing you to slip. NOTE: It is essential to ensure proper water drainage to prevent it from flowing onto the floor and under the cold plunge unit. If you are building a new room to install your cold plunge, plan for a floor drainage system. It is best to ensure good ventilation in the cold plunge area. An architect can help you determine your ventilation needs.

VENTILATION:

The cold plunge unit has two ventilation openings (see below). The rear panel must be at least 24" (61 cm) away from any wall or obstruction preventing airflow from the cold plunge (72" [183 cm] is recommended for optimal performance). The side ventilation panel draws air into the cold plunge and is also the main entry into the technical compartment. Allow sufficient space (30" [61 cm]) for someone to open it and work inside if necessary.

NOTE: The rear panel, once removed, provides access to and allows for the removal of the heat pump (if necessary) for maintenance.

IMPORTANT: DUE TO SHIPPING ORIENTATION, WAIT 24 HOURS BEFORE FILLING AND STARTING YOUR COLD PLUNGE ONCE IT IS IN PLACE FOR INITIAL START-UP!

ACCESSING THE EQUIPMENT

EQUIPMENT ACCESS PANEL

Rear panel of the cold plunge:

• To access the rear panel compartment:
• Three screws hold a T-piece on each side of the cold plunge.
• Remove the 6 screws and the 2 T-pieces from the rear equipment access panel door.
• Gently lift the panel from the bottom, then pull and lower it.

NOTE: If the rear panel has never been removed before, a small shipping corner support will still be attached between the side panel and the bottom of the cold plunge. This support must be removed before the panel can be removed.

Side panel of the cold plunge:

• To access the technical compartment:
• Three screws hold a T-piece on each side of the cold plunge's side panel.
• Remove the 6 screws and the 2 T-pieces from the equipment access panel door.
• Gently lift the panel from the bottom, then pull and lower it.

NOTE: If the side panel has never been removed before, a small shipping corner support will still be attached between the side panel and the bottom of the cold plunge. This support must be removed before the panel can be removed.

ELECTRICAL INSTALLATION

ELECTRICAL INSTALLATION

DO NOT ENERGIZE THE COLD PLUNGE UNTIL IT HAS BEEN FILLED WITH WATER FIRST!

IMPORTANT: DUE TO SHIPPING ORIENTATION, WAIT 24 HOURS BEFORE FILLING AND STARTING YOUR COLD PLUNGE ONCE IT IS IN PLACE.

DANGER: RISK OF ELECTRIC SHOCK

Installations that do not comply with the following procedures and requirements may expose users to electric shock. Non-compliant installations will not be covered by the warranty.

If installed in the United States, the electrical wiring of this cold plunge must comply with the requirements of the National Electrical Code (NEC) and any applicable local or federal codes. The electrical circuit (outlet) must be installed by a licensed electrician and approved by the local building electrical inspection authorities.

1. The electrical supply for the cold plunge must include an appropriately rated switch or circuit breaker to open all ungrounded supply conductors, in accordance with the national electrical code.
2. The 115 V model must use the supplied 15-foot (4.5 m) GFCI-protected cord and be plugged directly into a dedicated, grounded wall outlet between 6 feet (1.8 m) and 10 feet (3 m) from the cold plunge. Do not use an extension cord or any other detachable power cord. Using an extension cord or detachable power cord is extremely dangerous and voids all warranties!

115 VOLTS INSTALLATION (CORD CONNECTION)

The cold plunge comes with a factory-installed GFCI power cord, to be plugged into a 115-volt, 15-amp, grounded type receptacle. No other appliance or electrical installation can be used on this circuit. The cord is located inside the technical compartment.

IMPORTANT: Under NO circumstances should you use an extension cord. Using an extension cord severely degrades equipment performance and can create an electrical hazard.

Electrical Components Inside the Technical Compartment

Heat Pump

Circulation Pump

Ultraviolet System

Control Box

CONTROL PANEL OPERATION

INITIAL START-UP:

When the cold plunge is first energized, the control system initiates a 2-second start-up mode. Once the start-up mode is complete, the actual water temperature will be displayed on the screen, and the cold plunge will begin to cool and maintain the water temperature.

Circulation Pump

Temp High

Temp Low

Light

Heat Pump

Mode Program

Your cold plunge was designed to automatically cool the water to the factory-set temperature of 80°F (27°C), unless you set the cold plunge to a different temperature. If the cold plunge is disconnected from all power, the system will automatically revert to the last selected setting when power is restored.

SETTING THE TEMPERATURE

When the system is energized and not in setting mode, press the ▲ or ▼ buttons to display the set temperature. Each time you press one of the buttons again, the set temperature will increase or decrease depending on the button pressed; the system will memorize the set temperature value. The LCD screen will automatically display the current temperature of the cold plunge.

The temperature can only be set between 40°F - 80°F (5°C - 27°C). The last measured temperature is permanently displayed on the LCD.

NOTE: The heat pump icon flashes when the heat pump is running and remains solid when the cold plunge water temperature and the set temperature are identical, which stops the heat pump.

MULTI-COLOR LED LIGHTING

There are two different lighting modes that can be set within the first 5 minutes of powering on by holding the Light button for 8 seconds (until you hear a beep) to switch between modes. The default mode is Mode 1. NOTE: If the lighting mode you are looking for does not display, simply turn off the spa and repeat the above instructions.

Mode 1 simply turns the white light on and off by pressing the Light button (no colors).

Mode 2 allows you to select multiple colors. Press the Light button once to turn on the color cycle, press the Light button again to turn on different lighting colors. The sequence is as follows:

1. 1st press: Full color cycle between red and white below.
2. 2nd press: Red
3. 3rd press: Green
4. 4th press: Yellow
5. 5th press: Blue
6. 6th press: Violet
7. 7th press: Cyan
8. 8th press: White
9. 9th press: Off.

NOTE: If left on, the lighting will automatically turn off after 1 hour of operation.

FAHRENHEIT/CELSIUS SETTING

To change the water temperature display from Fahrenheit to Celsius, press the Mode Program button until you access the temperature setting screen where the LCD will display the temperature unit in F or C. Press the ▲ or ▼ button to change the temperature unit to °F or °C. The system will automatically save the value after the change.

SYSTEM AND PANEL VERSION

When the system is energized, press the Mode Program button several times to display the firmware version on the control box, then on the control panel. These two screens provide information only on the current version of your cold plunge controls.

NETWORK STATUS SCREEN

When the system is energized, press the Mode Program button several times to display the Offline screen. This is a non-functional feature of the cold plunge unit.

LOCKOUT PROTECTION

The lockout screen or child lockout screen allows you to prevent anyone from using the control panel to change the current settings.

When the system is energized, press the Mode Program button several times to display the Lockout On or Lockout Off screen.

TO ACTIVATE cold plunge lockout, press the ▲ or ▼ button to switch between them. When LO:ON (Lockout On) is visible on the screen, do not press any buttons and wait 3 minutes. After 3 minutes, the LOCH screen will display and lock all button operations.

To use the control panel in lockout mode, simply hold any button down for 3 seconds.

TO DEACTIVATE lockout mode, hold any button down for 3 seconds. Use the Mode Program button to access the Lockout screen and press the ▲ or ▼ button to display LO:OF (Lockout Off).

CONTROL PANEL OPERATION

LCD DIAGNOSTIC MESSAGE

WARNING! RISK OF SHOCK! NO USER-SERVICEABLE PARTS. Do not attempt to repair the control box. Contact your local dealer for assistance. Follow all electrical connection instructions in the owner's manual.

START-UP AND FILLING INSTRUCTIONS

POSITIONING THE POWER CORD

1. Open the technical compartment door (side panel), see page 7.
2. With the technical compartment open, unroll the 15-foot (4.5 m) power cord.
3. Determine the distance of the power cord needed between the power outlet and the cold plunge. DO NOT PLUG IN THE COLD PLUNGE UNTIL IT HAS BEEN FILLED WITH WATER!
4. Place the power cord inside the cutout.
5. Return any excess cord to the technical compartment.

POSITIONING THE DRAIN HOSE

With the technical compartment open:

1. A 1/4" (6.4 mm) drain hose from the collection basin, 12 feet (3.7 m) long, is coiled and located inside the technical compartment. This hose is attached to the collection basin located under the large heat pump.
2. Place this drain hose (in the cutout, like the power cord) and route it to a drain or other type of collection unit outside the cold plunge if it is installed indoors. NOTE: Several gallons of water may exit this hose each day. The external collection basin should not be higher than the basin that holds the heat pump.
3. Place it in your desired location outside the cold plunge if the installation is outdoors (use the cutout). This drain hose can also be cut if it is too long.

The following procedures must be followed for initial commissioning and each time the cold plunge is drained for routine maintenance.

FILLING THE COLD PLUNGE WITH WATER

1. Remove any debris from your cold plunge.
2. Ensure the drain valve is closed and the drain plug is securely fastened and tightened.
3. Remove the filter cover.
4. Insert a garden hose into the filter compartment to fill your cold plunge.
5. IMPORTANT: Do not use hot or softened water. If the ambient temperature is above 100°F (38°C), the cold plunge's heat pump may not be able to start cooling the water when power is applied until the ambient temperature drops below 100°F (38°C). NOTE: Direct sunlight can also heat the inside of the technical compartment, making it hotter than the ambient outside temperature.
6. Under normal circumstances, the water level should remain just above the upper equalizer fitting of the cold plunge.

If you do not maintain sufficient water in your cold plunge, you risk damaging your system and voiding your warranty. If your cold plunge filter is drawing air, causing pump cavitation, you must add water!

6. Check the filter installation and ensure it is not loose.

IMPORTANT: Remember to change the spa water every three to six months.

Filter cover

Water level

POWERING UP

1. Energize the cold plunge by plugging the GFCI into the wall outlet.
2. WATKINS WELLNESS recommends that the GFCI be tested before each use to ensure it is functioning correctly. When the cold plunge is plugged into the electrical supply, press the "Test" button. The cold plunge should stop operating, and the GFCI power indicator light should turn off. Wait 30 seconds, then reset the GFCI by pressing the Reset button. The GFCI power indicator light will illuminate, restoring power to the cold plunge. If the interrupter does not function in this manner, this indicates an electrical malfunction and the possibility of electric shock. Unplug the receptacle until the fault has been identified and repaired.
3. If the message E03 is visible on the control panel after powering up, there is an air lock in the circulation pump. Disconnect the power and reconnect it. This may need to be done several times before water begins to flow into the pump.
4. While the circulation pump is running, check for water leaks at the drain, u-drain, fittings, or accessories in the technical compartment (leaks may have occurred during transport). If water is escaping from any of these areas, it is not necessary to call for assistance. Simply tighten the fitting. If you need assistance, contact your local dealer.
5. After checking your cold plunge for leaks, it is now time to adjust its settings. Press the "temp up" or "temp down" button on your control panel until the screen indicates that the desired temperature has been set.

Technical compartment

Power cord and drain hose in the cutout area

CHEMICAL ADDITIVES FOR START-UP

WATER CHEMISTRY GUIDELINES

Ultimately, the cold plunge owner is responsible for the water chemistry of the cold plunge. Improper water chemistry can lead to costly repairs that are not covered by the cold plunge warranty. If in doubt about any of the steps below, please contact your local dealer.

First, it is advisable to identify the minerals (e.g., iron) present in your local water source. This will help you understand how to treat the water. Follow the four steps below and ensure you achieve the correct levels for each category before moving to the next step. ADD all chemicals to the filter compartment.

STEP 1: MEASURING TOTAL ALKALINITY:

Total alkalinity is the amount of bicarbonate, carbonate, and hydroxide present in the cold plunge water. Good total alkalinity is important for pH control. If the TA value is too high, pH is difficult to adjust. If it is too low, it will be difficult to maintain the pH at the correct level. The ideal range is between 40 and 120 parts per million (PPM). Reduce total alkalinity using an alkalinity reducer (sodium bisulfate). Increase TA by adding an alkalinity booster (sodium bicarbonate or sodium hydrogen carbonate). These products should be added in small quantities, 5 ml at a time. After adding 5 ml, wait half an hour before measuring again. Once the total alkalinity safety range is established, proceed to the next step.

STEP 2: ESTABLISHING AN ADEQUATE PH LEVEL:

The recommended pH range is between 7.2 and 7.8. Above 7.8, the water is too alkaline and can become cloudy, while scale may form on the shell and heater. To lower the pH, use a pH reducer/pH Down (sodium bisulfate). When the pH is below 7.0 (considered neutral), the cold plunge water is too acidic and may damage the heater system. To increase the pH, use a pH booster/pH Up (sodium hydrogen carbonate). Any increase or decrease in pH should be added one teaspoon at a time, waiting half an hour between application and the new measurement.

STEP 3: DETERMINING CALCIUM HARDNESS:

It is important to adjust the calcium measurement to be between 75 and 150 PPM. If the measurement requires adjustment, correct this level now. If the water is too soft (low value), increase the calcium hardness to increase the PPM measurement. If the water is too hard (high value), it can be corrected by: (A) adding a mixture of hard water and soft water to achieve a value within the safety range, or (B) adding an anti-scale product such as Stain and Scale Control. If the calcium hardness of your local source water is a problem (too hard or too soft), it is essential to have a test kit to measure calcium hardness.

STEP 4: DISINFECTION:

Once steps 1 through 3 are completed, the cold plunge must be disinfected using chlorine (sodium dichloride). Add 2 teaspoons of chlorine, and increase as necessary to reach a level of 3 to 5 ppm. Check and maintain this level weekly, as well as before and after using the cold plunge.

IMPORTANT NOTE: It is strongly recommended to use granular sodium dichloride to sanitize cold plunge water, but granular bromine can also be used. Never use tablet disinfectants, even with a floater. As with any other chemical, the disinfectant should be introduced into the cold plunge's filter compartment.

COLD PLUNGE MAINTENANCE

FILTER CARTRIDGE MAINTENANCE

Monthly, the filter cartridge should be cleaned to remove objects and particles that have lodged in the cartridge pleats. Using a garden hose with a spray nozzle, spray water from the inside out through the pleats to expel any trapped particles.

NOTE: Never operate your cold plunge without the filter cartridge!!! This will void your warranty.

NOTE: Filter cartridges should be replaced every six to eight months, or sooner if necessary. Dirty filters can cause wear on your cold plunge's pump and void your warranty.

REMOVING AND CLEANING THE FILTER CARTRIDGE

The cold plunge uses a screw-in filter cartridge that removes easily.

• Turn off the cold plunge's power (unplug the cold plunge).
• Remove the filter cover, Figure 1.
• Unscrew the filter cartridge counterclockwise and remove it from the cold plunge (requires many turns), Figure 2.

• Rinse the cartridge using a garden hose. Rotate the filter pleats, and separate them as you spray them with water to remove all debris and dirt. Let the filter dry, then check for any calcium deposits (scale) or oil film. If you find any, clean the filter cartridge with a cold plunge filter cleaning solution to loosen and remove deposits and oils. (To extend the life of the filter, soak it regularly).

CAUTION! Always use appropriate eye protection when using cleaning chemicals or high-pressure water. Read the cleaning product instructions and follow the safety instructions and warnings on the label.

CAUTION! Never scrub the filter cartridge with a brush, as this will wear out and disintegrate the filter. Never operate the pump of the cold plunge without the filter cartridge in the skimmer compartment. Using the cold plunge without the filter cartridge can allow debris to enter the cold plunge's plumbing and void the warranty!

• Replace the filter cartridge (insert and turn clockwise to lock in place). DO NOT OVERTIGHTEN!
• Reconnect the cold plunge to power it back on.

Figure 1

Figure 2

SURFACE MAINTENANCE

Do not use solvents or abrasive cleaners to clean the cold plunge. Generally, a mild detergent and water are sufficient to resolve cleaning issues.

COVER MAINTENANCE

The cover is made of a dyed polyester fabric and is a durable, aesthetically pleasing foam insulation product. Monthly cleaning is recommended to preserve its beauty and extend the material's life.

To clean the polyester cover and maintain it:

1. Remove it and place it gently against a wall or fence.
2. Rinse the cover with a garden hose to rinse off and loosen dirt.
3. Add four tablespoons of mild soap or dish soap to 1 gallon (4 liters) of warm water. Clean with a soft-bristled brush. Rinse thoroughly with cold water and air dry.

IMPORTANT: Do not let soap dry on the polyester before rinsing.

4. Wipe the perimeter of the cover and the side flaps. Rinse with cold water.
5. Rinse the underside of the cover with water only (do not use soap), and wipe with a dry cloth.

CABINET MAINTENANCE

Little maintenance is required to keep your cold plunge's cabinet in good condition.

• The cold plunge cabinet should be cleaned as needed to remove dirt and debris.
• NO abrasive or aggressive chemical products should be used on the cold plunge cabinet.
• NO solvent or cleaner containing aromatic solvents should be used on the cold plunge cabinet.
• Warm, clean water is the best choice for cleaning the cold plunge cabinet.

REPLACING THE COLD PLUNGE LED

• Turn off the cold plunge's power (unplug).
• Remove the rear panel (see page 7).
• Locate the cold plunge lighting.
• Peel off the craft paper from the bottom right to expose the lighting.
• To remove the LED housing and board, turn the outer housing 1/4 turn counterclockwise and remove it.
• Pull and remove the LED board from the socket.
• Replace by reversing the steps above.

Outer housing

UV MAINTENANCE

The ultraviolet system must be maintained to keep the water clean. The following maintenance program is recommended:

• Replacement of the UV-C lamp (20) every twelve months. This operation is relatively simple and can be performed by the cold plunge owner or by your dealer if you do not wish to perform the replacement yourself.
• Cleaning the quartz tube is necessary when your UV system is not functioning correctly. Contact your dealer for quartz tube cleaning. NOTE: UV-C lamp replacement can be done at the same time. Cleaning the quartz tube (6) requires draining the cold plunge.

REPLACING THE UV-C LAMP

a. Unplug the cold plunge.

WARNING: Ensure the UV-C lamp (20) has cooled before removing it. Wear latex gloves when installing a new lamp to prevent oils from your skin from damaging it.

DANGER: Never look directly at the UV-C lamp (20) when it is on, as it can cause serious eye damage or blindness.

b. Remove the technical compartment door.

c. Remove the housing cover (14) by removing the 4 screws (15).

d. Disconnect the UV-C lamp connector (17) from the ballast connector (16).

e. Slowly remove the housing cover (18) and the UV-C lamp (20) from the quartz tube (6).

Replace with the new UV-C lamp as follows:

1. Insert the new UV-C lamp (20) into the quartz tube (6). Install the housing cover (18) onto the compression nut (11).
2. Reconnect the UV-C lamp connector (17) to the ballast connector (16). Ensure that the connector is fully seated. Do not force it.
3. Reinstall the housing cover (14) with the gasket (13 below) and secure it with the screws (15).
4. Replace the technical compartment door.
5. Plug the cold plunge back into the power outlet.

WARNING: The UV-C lamp used in this appliance contains mercury. Used UV-C lamps must be disposed of in accordance with applicable legislation. See lamprecycle.org.

PART NUMBER DESCRIPTION

DRAINING OR WINTERIZING

DRAINING YOUR COLD PLUNGE

Every three to six months, depending on water condition, you should change the water.

ATTENTION: READ THIS BEFORE DRAINING YOUR COLD PLUNGE!

• To avoid damaging the cold plunge components, UNPLUG THE GFCI CORD OR TURN OFF THE BREAKER AT THE SECONDARY ELECTRICAL PANEL BEFORE DRAINING. Do not re-energize the unit until your cold plunge has been refilled with water.
• Certain precautions must be taken when draining your cold plunge. If it is extremely cold and the cold plunge is outdoors, the piping and equipment may freeze.
• Do not expose the cold plunge shell (interior surface) to direct sunlight.

• Unscrew the drain cover and remove it.
• Attach the nozzle to a garden hose and direct it to a suitable drainage area, keeping the hose below the water line.
• Open the valve to drain.
• When the cold plunge is empty, clean its shell and the filter cartridge. See the "Cold Plunge Maintenance" section.
• After cleaning, remove the garden hose, replace the drain plug, close the drain valve, and push the flap back into its housing.
• Follow the instructions in "Filling and Quick Start" on page 12.

Cap of drain

WINTERIZING YOUR COLD PLUNGE

If you plan to store your cold plunge for the winter, you must also use a wet vacuum to clean the water lines to ensure they do not contain any water. Water left in the lines may freeze and damage the lines and the pump.

1. Drain your cold plunge.
2. All water must be removed from the internal plumbing.
3. Remove the filter cartridge. Clean the filter cartridge and store it in a dry place. Attach the hose to the suction port of the wet vacuum and completely dry the filter pack.
4. Using the wet vacuum, remove water from the drain opening. NOTE: When removing water from the drain opening, you may notice suction coming from the bottom of the filter bucket. With the help of a second person, block the suction from the filter fitting with a large cloth. This will allow the water trapped deep in the main line to be extracted.
5. Thoroughly dry the cold plunge shell with a clean cloth.
6. Using a funnel, pour propylene glycol antifreeze into the filter suction fitting and the drain. WARNING: Use only propylene glycol as antifreeze. This product is non-toxic. NEVER use automotive antifreeze, as these products are toxic.

IMPORTANT: Before using your cold plunge, be sure to dilute and remove all propylene glycol first.

7. Replace the technical compartment door and secure it with the screws.

NOTE: Damage caused by improper winterization is not covered by the warranty. You can contact your local dealer to have your cold plunge winterized.

TROUBLESHOOTING GUIDE

If the cold plunge is not functioning as it should, first review all the installation and operation instructions in this manual and check the message displayed on the panel. If you are still not satisfied with its proper functioning, follow the appropriate troubleshooting instructions.

ATTENTION! WARNING! RISK OF SHOCK! No user-serviceable parts. Do not attempt to repair the control box. Contact your local dealer for assistance. Follow all electrical connection instructions in the owner's manual.

TRIPPING OF THE GFCI

The GFCI is a safety device designed to detect a ground fault as low as 5 milliamps (±1 mA). WATKINS WELLNESS recommends that the GFCI be tested before each use to ensure it is functioning correctly.

When the cold plunge is plugged into the electrical supply, press the "Test" button. The cold plunge should stop operating, and the GFCI power indicator light should turn off. Wait 30 seconds, then reset the GFCI by pressing the Reset button. The GFCI power indicator light will illuminate, restoring power to the cold plunge. If the interrupter does not function in this manner, this indicates an electrical malfunction and the possibility of electric shock. Unplug the receptacle until the fault has been identified and repaired.

IMPORTANT: You must wait at least 30 seconds before resetting the GFCI. Failure to do so may cause the power indicator light to blink. If this happens, repeat the GFCI test procedure.

Never use the GFCI to disconnect power to the spa (unplug it yourself). If the GFCI trips while the cold plunge is plugged in and a power outage occurs, the GFCI will automatically reset when power is restored, and the cold plunge will be re-energized.

COLD PLUNGE NOT HEATING OR COOLING

If you notice that the cold plunge is not heating or cooling while power is still available, check the following:

1. Check the heat pump icon and circulation pump icon on the control panel.

• The heat pump icon flashes when the heat pump is running.
• If there is a 2° difference between the set temperature and the actual temperature, the heat pump should start.
• The circulation pump icon should be on and solid at all times.

2. Ensure that your set temperature is set to the desired temperature. Adjust as necessary.

3. If your cold plunge cover has remained closed for some time, the actual water temperature may differ from the set temperature. Place the cover on the cold plunge if it has been stopped for a while and allow some time for the actual water temperature to reach the set temperature.

4. If an error message is displayed on the screen, turn off the power for 5 minutes, then turn it back on. If the error message reappears, consult page 11, then contact your local dealer.