AlkaViva Athena 5 — 5-Plate Countertop Water Ionizer
Introducing the AlkaViva Athena 5, formerly known as the Melody II Water Ionizer. This is the same trusted 5-plate water ionizer with a new model name. Its proven technology, convenient countertop design, and advanced water ionization features remain unchanged.
The Athena 5 combines five platinum-coated titanium SmartDesign electrodes, a 150-watt SMPS power supply, AutoAdjust technology, continuous electrode cleaning, and UltraWater filtration to produce hydrogen-rich alkaline drinking water with adjustable pH settings.
Whether you're purchasing your first water ionizer or replacing an older model, the Athena 5 offers a practical combination of advanced technology, filtration, and everyday convenience.

UltraWater Filtration Independently Tested for 249 Contaminants
Includes a FREE Premium Extended Warranty Upgrade and Automatic Warranty Registration!
See the Athena 5 (Formerly Melody II) in Action
Watch our demonstration of the Melody II, now called the Athena 5, to see its water ionization performance. Although the model name has changed, the water ionizer itself remains the same.
Why Choose the AlkaViva Athena 5?
- Five Platinum-Coated Titanium Electrodes: SmartDesign electrodes engineered for efficient electrolysis and molecular hydrogen production.
- Hydrogen-Rich Alkaline Water: Produces dissolved molecular hydrogen (H2) during the water ionization process.
- 150-Watt SMPS Power Supply: Provides controlled electrical power for the five-plate electrolysis system.
- AutoAdjust Technology: Automatically adjusts operating power according to changing water conditions.
- Continuous Electrode Cleaning: Automatically reverses electrode polarity during operation to help minimize mineral buildup.
- Automatic Post-Cleaning: Provides an additional cleaning cycle after operation.
- MICOM Computer Monitoring: Controls and monitors the ionizer's operating functions.
- Five Alkaline Water Settings: Select from five alkaline levels, one purified setting, and two acidic settings.
- Real-Time Flow Control: Allows you to monitor and adjust water flow.
- UltraWater Dual Filtration: Reduces specified contaminants while retaining naturally occurring dissolved minerals.
- Filter-Life Indicator: Helps you monitor filter usage and determine when replacement is needed.
- Voice Confirmation: Provides audible feedback when changing water settings, with adjustable volume.
- Flexible Installation: Connects to a compatible kitchen faucet or directly to the cold-water supply with optional accessories.
Molecular Hydrogen and Adjustable Alkaline Water
The Athena 5 uses electrolysis to produce hydrogen-rich alkaline drinking water. Its five platinum-coated titanium electrodes work together with intelligent power management to support water ionization.
Molecular hydrogen (H2) is dissolved in the water during electrolysis. The concentration of dissolved hydrogen and the water's pH are separate characteristics.
The Athena 5 provides five adjustable alkaline drinking-water settings, one purified-water setting, and two acidic-water settings for appropriate non-drinking applications.
Actual pH, ORP, and dissolved hydrogen levels depend on your source-water mineral content, water flow, operating settings, and other water conditions.
SmartDesign Electrodes and AutoAdjust Technology
The Athena 5 features five SmartDesign platinum-coated titanium electrodes engineered for efficient water ionization.
Its AutoAdjust technology works with the SMPS power supply to regulate electrical power according to changing water conditions.
This helps the ionizer adapt to differences in mineral content and other operating conditions without requiring constant manual adjustment.
Continuous Electrode Cleaning
Mineral buildup can interfere with electrode performance over time, particularly in areas with hard water.
The Athena 5 incorporates AlkaViva's continuous-cleaning technology, which automatically reverses electrode polarity during operation to help reduce mineral accumulation.
An additional post-operation cleaning cycle provides further electrode maintenance.
These automated features help reduce manual cleaning requirements, although periodic maintenance may still be necessary depending on local water conditions.
Advanced UltraWater Dual Filtration
The Athena 5 features AlkaViva UltraWater filtration technology, designed to reduce specified drinking-water contaminants while retaining naturally occurring dissolved minerals.
UltraWater filtration has been independently tested for 249 contaminants. Actual reduction performance depends on the filter configuration, source-water quality, flow rate, and other operating conditions.
The dual-filter configuration provides additional filtration capacity and allows specialized filter options for certain water-quality concerns.

View UltraWater Laboratory Test Results
Learn More About UltraWater Filtration
Customize Your Athena 5 Water Settings
The Athena 5 comes with preset water settings suitable for typical water conditions. However, you can also manually adjust the power level of individual alkaline and acidic water settings.
This allows you to customize the ionizer according to your water conditions and preferences.

How to Adjust a Water Level
- Turn on the water at the level you want to program.
- Press and hold the button for that water level.
- Press the button again briefly to increase the power setting on a scale of 1 through 4.
- Continue pressing briefly to cycle through the available settings.
- When you reach your preferred setting, press the Purify button to save it.
For additional programming details, refer to the owner's manual.
View the AlkaViva H2 Series Owner's Manual
Easy Countertop Installation
The Athena 5 is designed for convenient countertop installation. Several connection options are available depending on your kitchen faucet and plumbing arrangement.
1. Standard Faucet Diverter — Included
The Athena 5 includes a standard faucet diverter for connecting to compatible kitchen faucets.
2. Pull-Out or Spray-Style Faucet Diverter — Optional
If your kitchen has a pull-out sprayer or specialty faucet, a separate inline diverter may be needed.
These connections are available in different sizes, so it's important to confirm compatibility with your faucet.
3. Direct Cold-Water Connection — Optional
The Athena 5 can also be connected directly to the cold-water supply beneath your kitchen sink using an appropriate angle-stop valve connection.
This installation allows the ionizer to remain on your countertop without connecting directly to the kitchen faucet.
A small opening is required to route the water supply tubing from beneath the sink to the ionizer.
If you're unsure which installation method is best for your kitchen, contact us. We're happy to help.
AlkaViva Athena 5 Specifications
| Brand | AlkaViva |
| Model | Athena 5 (Formerly Melody II) |
| Installation | Countertop |
| Electrodes | 5 Platinum-Coated Titanium SmartDesign Plates |
| Voltage | 120V / 60Hz |
| Power | 150 Watts — SMPS |
| Water Pressure | Up to 72 psi |
| Dimensions | 12.5" W x 14.5" H x 5.5" D |
| Weight | 12.75 lbs. (14.75 lbs. boxed) |
| Water Temperature | 40–86°F |
| Water Settings | 5 Alkaline, 1 Purified, 2 Acidic |
| Cleaning | Continuous Cleaning and Post-Cleaning |
| Filtration | UltraWater Dual-Filter System |
| Power Management | AutoAdjust and SMPS |
| Voice Function | Voice Confirmation with Volume Control |
| Safety Features | Dual Temperature Sensors and Fuse |
FREE Premium Extended Warranty Upgrade
When you purchase your AlkaViva Athena 5 from Alkaline Water Plus, your purchase includes a FREE Premium Extended Warranty upgrade and automatic warranty registration.
- Lifetime Parts Coverage
- 10-Year Labor Coverage
- Automatic Warranty Registration
- Lifetime Customer Support
Warranty coverage is subject to the applicable warranty terms and eligibility requirements.
90-Day Satisfaction Trial
We want you to feel confident about your purchase. That's why the Athena 5 comes with our 90-day satisfaction trial, subject to the applicable trial terms.
Learn More About Our 90-Day Trials
View Our Satisfaction Guarantees
Learn About Our Lowest Price Guarantee
Choosing the Right Water Ionizer for Your Water
Every water supply is different. Water hardness, mineral content, and filtration requirements can affect water ionizer performance.
The Athena 5 is a five-plate water ionizer designed for everyday drinking-water applications. However, selecting the right ionizer depends on your water conditions and preferences, not simply the number of plates.
If you have well water, unusually hard water, very soft water, reverse-osmosis water, or a salt-based water softener, we recommend discussing your water conditions with us before ordering.
Our water-quality resources can help:
Important Shipping and Care Information
AlkaViva water ionizers are tested before shipping. A small amount of residual water may remain inside the machine, and protective plugs are installed in the water ports for shipping.
Please save your original packaging and protective plugs in case your ionizer ever needs to be shipped for service.
How to Remove Quick-Connect Plugs
Safe Shipping and Receiving Instructions
What Customers Say About the Melody II / Athena 5
The Athena 5 was previously sold as the Melody II, and many customers have shared their experiences with this water ionizer over the years.
We encourage you to read the customer reviews on this product page to learn about their experiences with installation, water taste, everyday operation, and customer support.
Convenient Payment Options
Interested in financing your new AlkaViva Athena 5?
Visit our Payment Plans Page to learn about available options.
We're Here to Help You Choose the Right Water Ionizer!
Call us today for a FREE water-quality consultation! We'll help you choose the right water ionizer for your water conditions, needs, and preferences.