1. Product Overview
The Intex PureSpa Plus Greystone Square Hot Tub offers a relaxing spa experience for up to 6 people. This inflatable hot tub features 170 high-powered AirJets, a built-in hard water treatment system, and a saltwater sanitation system for enhanced comfort and water quality. It comes bundled with 4 PureSpa Cushioned Headrest Pillows for added relaxation.

Figure 1: Intex PureSpa Plus Greystone Square Hot Tub with included headrest pillows.
The spa's durable construction utilizes puncture-resistant 3-ply laminated material with Fiber-Tech™ construction, ensuring both durability and stability. The Greystone pattern provides an aesthetic appeal suitable for various outdoor settings.

Figure 2: Illustration of Fiber-Tech™ construction for enhanced durability.
2. Setup Instructions
Setting up your Intex PureSpa Plus is designed to be straightforward. Ensure you have a flat, stable surface for placement, clear of sharp objects or debris.
2.1 Inflation
The spa features a FastFill™ Advanced Inflation System, allowing for quick inflation and deflation at the touch of a button, without the need for an external hose.

Figure 3: FastFill™ Inflation System in action.
- Unpack all components and lay out the ground cloth in your desired location.
- Place the deflated spa on the ground cloth.
- Connect the inflation hose from the control unit to the spa's inflation valve.
- Press the inflation button on the control panel to begin inflation. The spa will inflate to the correct pressure automatically.
- Once inflated, disconnect the hose and securely close the valve.
2.2 Filling the Spa
- Ensure the drain valve is closed.
- Fill the spa with a garden hose to the recommended water level, indicated on the inner wall of the spa.
- Connect the filter pump and heater unit to the spa.
3. Operating Instructions
The Intex PureSpa Plus offers various features for a customized spa experience.
3.1 Wireless Control Panel
Manage your spa settings conveniently with the wireless control panel. This panel allows you to adjust temperature, activate jets, and control other functions from within or outside the spa.
Video 1: Official product video demonstrating the features and benefits of the Intex PureSpa Plus Greystone Inflatable Hot Tub, including setup, operation, and user experience.
3.2 Spa Management App
For ultimate convenience, download the Intex Link™ Spa Management App to control your spa remotely. The app allows you to set heating, filtration, and sanitation schedules from your smartphone.

Figure 4: Intex Link™ Spa Management App interface.
3.3 Water Treatment and Jets
The integrated hard water treatment and saltwater sanitation system helps maintain clean and soft water, which is beneficial for your skin and extends the life of your spa equipment. Activate the 170 AirJets for a soothing massage experience.

Figure 5: Active bubble jets providing a relaxing experience.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your Intex PureSpa Plus.
4.1 Heat Retention
Utilize the energy-efficient cover and ground cloth to minimize heat loss and reduce energy consumption. Always secure the cover when the spa is not in use.
4.2 Water Chemistry
Regularly test and adjust your spa's water chemistry. Follow guidelines for pH, alkalinity, and sanitizer levels to ensure clean and safe water. The built-in saltwater sanitation system assists in maintaining water quality.
4.3 Filter Cartridge Cleaning/Replacement
Clean the filter cartridges frequently to ensure efficient filtration. Replace cartridges every few weeks, depending on usage and water quality, to maintain optimal performance.
5. Troubleshooting
This section addresses common issues you might encounter with your spa.
- Spa not heating: Check power connection, ensure filter is clean, and verify temperature setting on the control panel or app.
- Jets not working: Confirm the bubble jet function is activated on the control panel. Ensure sufficient water level.
- Water quality issues: Test water chemistry and adjust as needed. Clean or replace filter cartridges. Ensure the saltwater sanitation system is operating correctly.
- Slow inflation/deflation: Check for kinks in the inflation hose or blockages in the valve.
For more detailed troubleshooting, refer to the comprehensive guide in your product's full manual or contact Intex customer support.
6. Specifications
Key specifications for the Intex PureSpa Plus Greystone Square Hot Tub:

Figure 6: Visual summary of key specifications.
| Feature | Detail |
|---|---|
| Brand | Intex |
| Model Number | 28451EP + 4 x 28505E |
| Color | Gray |
| Product Dimensions | 94"L x 28"W x 28"H |
| Shape | Square |
| Material | Polyvinyl Chloride (PVC) |
| Occupancy | 6 person |
| Special Feature | Inflatable |
| Included Components | 4 Headrest Pillows |
| Assembly Required | No |
| Water Capacity (6P) | 290 gal. / 1,098L |
| Bubble Air Blower | 1.1 hp / 110 - 120V |
| Heater | 1,300W / 110 - 120V |
| Temperature Range | 50° ~ 104°F / 10 ~ 40°C |
| UPC | 193802313741 |
7. Warranty and Support
For information regarding product warranty, please refer to the warranty card included with your purchase or visit the official Intex website. For technical support, replacement parts, or further assistance, please contact Intex customer service directly. Keep your purchase receipt and model number handy for efficient service.