1. Introduction
This manual provides essential instructions for the safe and efficient setup, operation, and maintenance of your RELXTIME Inflatable Hot Tub. Please read this manual thoroughly before installation and use, and retain it for future reference.
The RELXTIME Inflatable Hot Tub is designed to accommodate 2-3 people, featuring 110 powerful bubble jets and a built-in heater pump for a relaxing spa experience.
2. Safety Information
- Always read and follow all instructions in this manual before using the hot tub.
- Ensure the hot tub is connected to a properly grounded electrical outlet to prevent the risk of electrocution.
- Place the hot tub on a flat, stable, and level surface. Uneven surfaces can cause damage to the hot tub bottom.
- Children must be supervised at all times when near the hot tub to prevent drowning.
- Do not operate the hot tub if the water temperature exceeds 104°F (40°C).
- Use only recommended hot tub chemicals to maintain water quality and safety.
- Avoid using extension cords. If necessary, use a heavy-duty outdoor-rated extension cord with a ground fault circuit interrupter (GFCI).
3. Setup Instructions
3.1 Unpacking and Placement
Carefully remove the hot tub and all accessories from the packaging. Choose a suitable outdoor location that is flat, stable, and can support the weight of the filled hot tub (approximately 158 gallons of water plus occupants). For enhanced insulation, consider placing a sponge mat (not included) underneath the hot tub.

Image: Unpacking the hot tub components.
3.2 Inflation
- Locate the inflation valve on the hot tub and the inflation hose.
- Connect one end of the inflation hose to the hot tub's inflation valve and the other end to the pump's inflation port.
- Plug in the hot tub's power cord. The hot tub features a self-inflation system. Activate the pump to begin inflation.
- Inflate the hot tub until it is firm to the touch, but not over-inflated.
- Once inflated, disconnect the inflation hose and ensure the valve cap is securely closed.
3.3 Filling with Water
- Ensure all drain plugs and filter connections are securely in place.
- Using a standard garden hose, begin filling the hot tub with water. A hose-end water filter can be used to improve initial water quality.
- Fill the hot tub to the indicated maximum water level line inside the tub.
3.4 Power Connection
After inflation and before filling with water, ensure the hot tub's power cord is securely plugged into a dedicated, grounded 120-Volt electrical outlet. The hot tub requires a corded power source.
Video: Overview of the RELXTIME Inflatable Hot Tub setup and features.
4. Operating Instructions
4.1 Control Panel Functions
The digital control panel provides easy access to all hot tub functions:

Image: Detailed view of the hot tub's digital control panel.
- Heater Button: Activates the rapid heating system. The water can be heated up to a maximum of 104°F (40°C). The heating rate is approximately 2-3°F per hour.
- Bubble Button: Turns the 110 high-powered bubble jets on or off for a soothing massage.
- Filter Button: Engages the water filtration system to keep the water clean and clear.
- Temperature Adjustment Buttons: Use the up and down arrows to set your desired water temperature. The adjustable range is 68°F (20°C) to 104°F (40°C).
- Digital Display: Shows the current water temperature and other operational information.
4.2 Initial Heating
After filling the hot tub, activate the heater function. The time required to reach the desired temperature will vary based on the initial water temperature and ambient conditions. It is recommended to cover the hot tub during heating to optimize efficiency.
5. Maintenance
5.1 Water Chemistry
Maintaining proper water chemistry is crucial for hygiene and the longevity of your hot tub. Regularly test the water using the provided spa test strips and adjust chemical levels as needed. Follow the instructions on your chosen hot tub chemicals for proper dosage and application.
5.2 Filter Maintenance
The hot tub's filtration system helps keep the water clean. Regularly inspect, clean, and replace the filter cartridges as necessary. Dirty filters can reduce pump efficiency and water quality.

Image: Accessories including filter cartridges and spa test strips.
5.3 Hot Tub Cover
Always use the insulated pool cover when the hot tub is not in use. This helps to retain heat, reduce energy consumption, and protect the water from debris. Secure the cover using the integrated buckles.

Image: Hot tub with its insulated cover for thermal retention.
5.4 Freeze Protection Feature
The hot tub is equipped with an automatic freeze protection heating function. This system activates when ambient temperatures drop to prevent internal components and water from freezing, allowing for use during cooler fall or winter months. For optimal performance in cold weather, ensure the hot tub is covered and consider additional insulation underneath.
5.5 Draining
To drain the hot tub, locate the drain valve. Connect a standard garden hose to the drain adapter and open the valve to allow water to empty. Ensure the drainage area can handle the volume of water.
6. Troubleshooting
This section addresses common issues you might encounter. For more detailed troubleshooting, please refer to the comprehensive manual or contact customer support.
- Hot Tub Not Heating: Check if the heater function is activated on the control panel. Ensure the power cord is securely plugged in and the water level is above the minimum line. A dirty filter can also impede heating efficiency; clean or replace filters as needed.
- Error Codes Displayed: If an error code appears on the digital display, consult the full product manual for specific code meanings and recommended solutions. Common solutions involve checking connections, water levels, or filter status.
- Insufficient Bubbles: Verify that the bubble jet function is activated on the control panel. Check for any obstructions or blockages in the air jet system.
- Water Quality Issues: If water appears cloudy or unbalanced, perform a water chemistry test using spa test strips and adjust chemical levels accordingly. Ensure filters are clean and functioning correctly.
7. Specifications

Image: Product information and dimensions.
| Feature | Detail |
|---|---|
| Brand | RELXTIME |
| Model Name | PH050015 |
| Color | Gray |
| Product Dimensions (L x W x H) | 61" x 61" x 25.6" (154cm x 154cm x 65cm) |
| Material | Polyvinyl Chloride (PVC) |
| Voltage | 120 Volts |
| Shape | Square |
| Water Capacity | 158 Gallons |
| Number of Air Jets | 110 |
| Seating Capacity | 2-3 Person |
| Rated Power | 1350W |
| Power Source | Corded |
| Power Cord Length | 10.8 ft |
| Certifications | CE, GS, ETL, EMC, UKCA, REACH |
8. Accessories Included
Your RELXTIME Inflatable Hot Tub package includes the following accessories:
- Pool Cover
- Foot Pad
- Pool Filter
- Filter Cover
- Cup Holder
- Spa Test Strips
- Spanner
- Inflation Hose
- Child Safety Key
- Storage Bag
- Barometer
- Repair Patch
9. Warranty and Support
RELXTIME provides a warranty for this inflatable hot tub to ensure your peace of mind. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact RELXTIME customer service.
If you have any questions, require assistance with setup, operation, maintenance, or encounter any issues, please do not hesitate to contact our customer service team. The seller, CoreMap, also offers 30-day easy returns and dedicated customer support.