1. Important Safety Information
Before installing and using this product, read, understand, and follow all instructions carefully. Keep this manual for future reference. Failure to follow these instructions can result in serious injury or death.
- Electrical Safety: Always connect the hot tub to a grounded outlet. Do not use extension cords. Ensure the RCD plug is tested before each use.
- Water Temperature: The water temperature should not exceed 40°C (104°F). Prolonged immersion in hotter water can be hazardous to health.
- Children: Supervise children at all times. Install a lockable cover when not in use to prevent unsupervised access.
- Chemicals: Handle spa chemicals according to manufacturer's instructions. Keep chemicals out of reach of children.
- Health Considerations: Consult a physician before use if you have health conditions, are pregnant, or are taking medication.
- Setup Location: Place the hot tub on a flat, stable surface capable of supporting the weight of the filled tub and occupants.
2. Package Contents
Verify that all components are present before beginning setup.

Image: All accessories included with the IMGadgets Inflatable Hot Tub.
- 1 x Inflatable Spa Liner (65" x 27.6")
- 1 x Integrated Heater/Pump Unit with RCD Plug
- 1 x Safety Cover
- 1 x Protective Ground Cloth
- 1 x Filter Cartridge & Holder
- 1 x Inflation Hose & Repair Kit
3. Setup Instructions
The IMGadgets Inflatable Hot Tub is designed for quick and tool-free setup, typically within 15 minutes.
- Prepare the Location: Choose a flat, level, and clean surface. Lay down the protective ground cloth to prevent punctures and provide insulation.
- Unpack the Spa Liner: Carefully remove the inflatable spa liner from its packaging and spread it out on the ground cloth.
- Connect the Pump Unit: Attach the integrated heater/pump unit to the spa liner using the provided pump unit connector. Ensure connections are secure.
- Inflate the Spa: Use the inflation hose to connect the pump unit to the spa liner's inflation valve. Turn on the pump unit's inflation function. The spa will inflate automatically. Once firm, disconnect the hose and secure the valve cap.
- Fill with Water: Fill the hot tub with fresh water to the recommended fill line. Do not overfill.
- Install Filter Cartridge: Insert the filter cartridge into its holder and place it inside the spa according to the markings.
- Connect Power: Plug the RCD plug into a grounded electrical outlet. Test the RCD before use as per the instructions on the plug.
4. Operating Instructions
Familiarize yourself with the digital control panel for optimal use of your hot tub.

Image: Digital Control Panel.
- Power On/Off: Press the power button to turn the hot tub system on or off.
- Heating Function: Press the 'Heat' button to activate the dual-heating system. The advanced PTC dual-heating technology will heat the water up to 40°C (104°F) and maintain a consistent temperature.
- Temperature Adjustment: Use the 'Increase Temperature' and 'Decrease Temperature' buttons to set your desired water temperature.
- Bubble Jets (Massage): Activate the 360-degree air jet system by pressing the 'Massage' button. This provides a full-body bubble massage.
- Filtration: The Avenli Fresh System operates silently in the background. Ensure the 'Filtration' function is active to keep the water clean.
- Control Panel Lock: To prevent accidental changes, use the 'Lock/Unlock Control Panel' button to secure the settings.
- Unit Change: Toggle between Celsius and Fahrenheit using the 'Change Unit' button.
5. Maintenance
Regular maintenance ensures the longevity and hygienic operation of your hot tub.

Image: Air Jet System, Filter Cartridge, and Lockable Cover.
- Filter Cartridge: Regularly check and clean the filter cartridge. Replace the cartridge every 1-2 weeks, or more frequently depending on usage, to maintain water clarity and pump efficiency.
- Water Treatment: Use appropriate spa chemicals to maintain proper water balance and sanitation. Follow chemical manufacturer guidelines.
- Cleaning the Spa Liner: Periodically clean the interior and exterior of the spa liner with a soft cloth and mild, non-abrasive cleaner. The antibacterial liner helps maintain hygiene.
- Draining and Refilling: Drain and refill the hot tub with fresh water every 1-3 months, depending on usage and water quality.
- Cover Care: Keep the insulated lockable cover clean. Ensure it is securely fastened when the hot tub is not in use to retain heat and prevent debris entry.
- Storage: When storing the hot tub, ensure it is clean, dry, and deflated. Store in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
If you encounter issues with your IMGadgets Inflatable Hot Tub, refer to the following common solutions. If the problem persists, contact customer support.
- Hot Tub Not Heating:
- Ensure the power plug is securely connected and the RCD is reset.
- Check that the desired temperature is set above the current water temperature.
- Verify the filter cartridge is clean and not obstructing water flow.
- Ensure the hot tub cover is in place to minimize heat loss.
- No Bubbles from Air Jets:
- Confirm the 'Massage' button is activated on the control panel.
- Check for any blockages in the air jet system.
- Water Not Clear:
- Clean or replace the filter cartridge.
- Test and adjust water chemistry (pH, sanitizer levels).
- Ensure the filtration system is running for adequate periods.
- Error Codes on Display:
- Refer to the specific error code in the full user manual (if provided separately) or contact customer support with the error code displayed.
7. Specifications
Key technical specifications for the IMGadgets Inflatable Hot Tub Model HotubLndn13.

Image: Hot Tub Dimensions and Key Specifications.
| Feature | Specification |
|---|---|
| Model Number | HotubLndn13 |
| Brand | IMGadgets |
| Product Dimensions (L x W x H) | 165L x 40W x 70H centimetres (65" x 15.7" x 27.6") |
| Weight | 26.76 kg |
| Capacity | 686 liters |
| Seating Capacity | 3 people |
| Number of Jets | 105 |
| Max Water Temperature | 40°C (104°F) |
| Voltage | 110 volts |
| Power Source | Corded Electric |
| Material | Triple-S PVC-coated fabric with I-Beam construction |
| Color | Black |
8. Warranty and Support
Your IMGadgets Inflatable Hot Tub comes with a manufacturer's warranty and dedicated customer support.
- Manufacturer Warranty: This product is covered by a 90-day manufacturer's warranty. Please retain your proof of purchase for warranty claims.
- Customer Support: For any questions, concerns, or technical assistance, please contact IMGadgets customer service.
Contact Information:
Phone: +1 647-797-3804
Email: customercare@imgadgets.com
Chat: www.imgadgets.com
Customer support is available Monday to Friday, from 10:00 AM to 6:00 PM.