1. Product Overview
The FROG Pool FROG Model 5400 Cycler is an all-in-one sanitizing system designed for pools up to 40,000 gallons. It utilizes Fresh Mineral Water technology to deliver a combination of minerals and a low level of chlorine, ensuring clean, clear, and soft pool water. This system aims to simplify pool maintenance by reducing chlorine usage and providing a consistent sanitizing effect.

Image 1.1: The FROG Pool FROG Model 5400 Cycler with its Mineral Reservoir. This system destroys bacteria, reduces chlorine use by up to 50%, and offers precision performance for easy pool care.
Key benefits of the FROG Pool FROG Model 5400 Cycler include:
- Complete Pool Maintenance System: Delivers Fresh Mineral Water and chlorine for optimal sanitization in pools up to 40,000 gallons.
- Reduced Chlorine Usage: Mineral technology extends chlorine life, potentially reducing usage by up to 50% compared to minimum EPA recommended levels for stabilized swimming pools.
- Low Maintenance: Utilizes prefilled replacement cartridges, requiring one Mineral Reservoir 5400 per season and one chlorine Bac Pac every 1 to 3 weeks.
- Cleaner, Clearer, Softer Water: Minerals work with a low level of chlorine to provide a more pleasant swimming experience.

Image 1.2: The FROG Pool FROG system uses minerals and a low level of chlorine to create cleaner, clearer, and softer water for swimming pools.
2. Safety Information
Always read and follow all directions, precautions, and warnings on the product packaging and in this manual before installing or operating the FROG Pool FROG Model 5400 Cycler. Keep all pool chemicals out of reach of children and pets. Wear appropriate protective gear, such as gloves and eye protection, when handling pool chemicals. Do not mix different pool chemicals. Ensure proper ventilation when working with pool chemicals. In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical advice if irritation persists. Store the cycler and cartridges in a cool, dry place away from direct sunlight and incompatible materials.
3. Package Contents
Upon opening your FROG Pool FROG Model 5400 Cycler package, verify that all components are present:
- 1 x Pool FROG Model 5400 Cycler Unit
- 1 x Mineral Reservoir 40K (pre-installed or included separately)
Note: Chlorine Bac Pacs are sold separately and are required for the system to function as intended.

Image 3.1: The complete FROG Pool FROG Model 5400 Cycler package, including the cycler unit and one Mineral Reservoir 40K.
4. Installation and Setup
Proper installation of the FROG Pool FROG Model 5400 Cycler is crucial for its effective operation. Follow these steps carefully:
- Prepare Pool Water: Before installing the cycler, ensure your pool water is balanced according to manufacturer recommendations. This includes pH, alkalinity, and calcium hardness.
- Install Cycler: The cycler should be installed after the pump and filter, and before the heater (if applicable). Refer to the plumbing diagram provided with your cycler for specific connection points. Ensure all connections are secure and watertight.
- Insert Mineral Reservoir: The Mineral Reservoir 5400 is designed to last one pool season (approximately 6 months). Insert the reservoir into the cycler unit as directed by the markings on the cycler.
- Insert Chlorine Bac Pac: Open a FROG Bac Pac (sold separately) and insert it into the designated compartment in the cycler. Bac Pacs typically last 1 to 3 weeks depending on pool size and usage.
- Set Dial: Adjust the control dial on the cycler to the appropriate setting for your pool size and usage. Start with a lower setting and adjust as needed to maintain desired chlorine levels.
- Start System: Turn on your pool pump to begin water circulation through the cycler.
5. Operating Instructions
Once installed, the FROG Pool FROG Model 5400 Cycler operates by continuously dispensing minerals and a low level of chlorine into your pool water. Regular monitoring of water chemistry is recommended to ensure optimal performance.
- Initial Start-up: After installation, allow the system to run for 24 hours before testing water chemistry.
- Water Testing: Regularly test your pool water for pH and chlorine levels using reliable test strips or a test kit. Maintain pH between 7.2-7.8 and a low chlorine residual (typically 0.5-1.0 ppm).
- Adjusting Chlorine Output: If chlorine levels are too low, increase the setting on the cycler's control dial. If levels are too high, decrease the setting. Make small adjustments and retest after several hours.
- Shock Treatment: Periodically shock your pool as needed, especially after heavy use or rain, following the shock product's instructions.
6. Maintenance
Consistent maintenance of your FROG Pool FROG Model 5400 Cycler ensures continuous clean and clear water. The primary maintenance tasks involve replacing the Mineral Reservoir and Chlorine Bac Pacs.

Image 6.1: Visual guide for replacing the Mineral Reservoir and Bac Pac. The Mineral Reservoir should be replaced every 6 months, and the Bac Pac when empty (approximately every 1-2 weeks).
- Mineral Reservoir Replacement: The Mineral Reservoir 5400 lasts for one full pool season, which is typically about 6 months. After this period, the minerals are depleted, and the reservoir must be replaced. To replace, turn off the pump, remove the old reservoir, and insert a new one.
- Chlorine Bac Pac Replacement: Chlorine Bac Pacs typically last 1 to 3 weeks, depending on pool size, water temperature, and usage. When the Bac Pac is empty, turn off the pump, remove the empty Bac Pac, and insert a new one.
- Winterization: For seasonal pools, remove the cycler and cartridges before winterizing your pool. Store the cycler in a dry, protected area.
7. Troubleshooting
If you encounter issues with your FROG Pool FROG Model 5400 Cycler, consider the following common troubleshooting steps:
- Low Chlorine Levels: Ensure the Bac Pac is not empty and is properly inserted. Increase the setting on the cycler's control dial. Check pool water balance (pH, alkalinity) as unbalanced water can affect chlorine effectiveness. Ensure adequate water flow through the cycler.
- High Chlorine Levels: Decrease the setting on the cycler's control dial. Ensure the Bac Pac is not oversized for your pool.
- Cloudy Water: Check and balance all pool chemistry parameters (pH, alkalinity, calcium hardness, chlorine). Ensure the filter is clean and operating correctly. Shock the pool if necessary. Verify the Mineral Reservoir is not expired.
- Algae Growth: Ensure chlorine levels are maintained. Verify the Mineral Reservoir is not expired. Shock the pool and consider using an algaecide if needed.
- Leaks: Check all plumbing connections to the cycler for tightness. Ensure O-rings and seals are properly seated and not damaged.
If problems persist after attempting these steps, contact customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | FROG |
| Model Number | 5400 |
| Pool Capacity | Up to 40,000 Gallons |
| Item Weight | 9 pounds |
| Item Form | Granular (referring to Bac Pacs) |
| Product Benefits | Kills Bacteria, Maintains Clean Sanitized Water, Protects Against Skin Irritation, Reduces Chlorine Odor |
| UPC | 722906054009 |
| Manufacturer | King Technology |
9. Warranty Information
The FROG Pool FROG Model 5400 Cycler is covered by a manufacturer's warranty. For specific details regarding warranty coverage, duration, and claims procedures, please refer to the warranty card included with your product packaging or visit the official FROG website. Keep your proof of purchase for warranty validation.
10. Customer Support
For technical assistance, product inquiries, or to purchase replacement cartridges, please contact FROG customer support. You can typically find contact information on the product packaging, the official FROG website, or by referring to the documentation included with your cycler. Additionally, consider downloading the free FROG Water Care App for helpful tips and reminders.

Image 10.1: The FROG Water Care App is available for download on the App Store and Google Play, offering additional support and resources.