Meet The Echo Forty™
The ECHO Forty™ is a high-capacity hydrogen water tumbler designed to bring powerful hydrogen generation into a portable, everyday format.
With an industry-leading 40 oz capacity and the ability to generate 4–6 ppm of molecular hydrogen, the ECHO Forty allows you to produce hydrogen-rich water on demand without needing multiple refills throughout the day. Built with premium materials and advanced electrolysis technology, it combines performance, durability, and convenience in one integrated system.
The ECHO Forty is designed for daily hydration at home, work, travel, fitness, and wellness environments. Its smart touchscreen interface and app connectivity allow you to track your hydrogen intake, monitor water consumption, and create hydration goals to support consistent use.
🔗 Features, Construction & Specifications
Important Safety Information
Do not microwave, refrigerate, or freeze the Echo Forty™
Do not submerge or place in the dishwasher
⚠️ Contents may be flammable. Keep away from open flames and ignition sources.
🔗 Is Hydrogen Water Flammable or Dangerous?
Echo Forty™ Initial Setup
💧The Forty™ contains a small amount of distilled water to keep the membrane primed. (This water is NOT for consumption.) Your Flask™ is clean and ready to use.
When first using the Forty™, it may take up to one week of regular, consistent use for your flask to build full pressure and produce consistent hydrogen bubbles.
🔗 Why does the Forty™ generator need to be wet?
🔗 What if mine didn't arrive with water?
🔗 Understanding your bubble performance and troubleshooting
Operating the Echo Forty™
How to use your Forty™
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Fill the Forty™ to the top of its shoulder with water. We recommend purified or distilled water for the best performance
- Secure the cap by simply twisting it on.
- Swipe up on the Forty™ screen and press the play button to activate the hydrogen infusion cycle
- When the cycle ends, lifting the drink spout will depressurize the forty.
Your Echo Forty™ is designed to automatically manage internal pressure during and after each hydrogen cycle. Because of this, you may hear different sounds when lifting the spout — or none at all.
Sound variation does NOT affect hydrogen concentration (PPM).
💧Small drips from the oxygen port are normal and typically resolve after several uses. This is not considered a leak—it’s an occasional and expected result of oxygen being expelled through the port (even beyond the first use).
Echo Forty™ Operating FAQs and Solutions
🔗 How to use your Echo Forty™ Screen
Screen Safety, Display Settings, & Troubleshooting
🔗 Understanding your Forty™ Generator
Bubble performance, Sounds, Expected Leaks, LED Lights, & Troubleshooting
Echo Forty™ Charging Guide
Your Forty uses a lithium-ion battery paired with battery management software. When the battery is new, the system’s percentage readings may not yet be perfectly calibrated. This is known as a battery calibration period.
During this time, you may notice inconsistent cycle counts, such as:
5–7 cycles on one charge
2–3 cycles on another
This variation is normal in the beginning. After several full charge-and-discharge cycles:
Voltage curves stabilize
Capacity readings become more accurate
Cycle estimates become more consistent
Lithium batteries naturally stabilize with regular use, and the software improves its ability to estimate remaining capacity.
👉 This calibration process typically takes a few weeks.
When to Charge
For optimal battery health, it’s best to let the battery fully discharge before recharging — allow the Forty™ to run until it can no longer complete a full cycle.
How to Charge
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Locate the Charging Port
The port is located under the display screen on the Handle.
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Connect the Charger
Plug the USB-C cable into the generator’s port.
Connect the other end to a 5 V, 2 A charger block (any compatible USB-C or USB-A adapter works).
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Charge Fully
Allow up to 2.5 hours for a complete charge.
Your battery indicator may show green with full bars after a few minutes, but the battery still needs the full charge time to reach optimal capacity.
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Monitor Charging
Avoid overcharging or leaving the Forty™ plugged in continuously, as this can reduce long-term battery life.
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Unplug After Charging
Once fully charged, unplug the Forty™ to prevent potential battery damage, overheating, cord damage, or fire risk.
Echo Forty™ Cleaning and Maintenance
Inside
Bottle (weekly): Wash with mild soap and water. No harsh chemicals. Rinse thoroughly with warm filtered water.
H2 Generator (Monthly - to remove mineral buildup): Fill with 1/3 vinegar and 2/3 warm distilled water. Rinse, fill with filtered water, and run the "Clean Flask" cycle from the settings menu. Rinse thoroughly when complete.
Outside
Hand wash only with a damp cloth. Do not put in the dishwasher or submerge in water.
🔗 Cleaning & Maintenance of Your Echo Forty™
Echo Water App
To download the app, you’ll find it in the Apple App Store or the Google Play Store under "Echo Water."
For a complete overview of the app, including step-by-step instructions, FAQs, and solutions, please visit our App Manual below:
Warranty
🔗 Echo Flask™ Warranty Coverage - limitations, registration, where to file a claim
🛡️ If you bought directly on Echowater.com or Echowater.co.uk, you do not need to register your product as you are already in our system.
🔗 Return Policy
- Purchased from Echowater.com: 🔗 Return Portal
- Purchased from Echowater.co.uk: 🔗 UK Return Portal
- 3rd Party Returns: Returns must be handled through the retailer where you made your purchase. Their return policies and timelines will apply, so we recommend contacting them directly for assistance.
❔Common Customer Questions
🔗 How long to feel the benefits of Hydrogen Water?
🔗 Why am I experiencing unexpected symptoms after starting Hydrogen Water?
🔗 What sets your Flask apart from Others?
🔗 Why is the Echo Flask made of plastic?
Echo Water Support
Need Help? We’ve Got You Covered
If you have a question, need assistance, or something doesn’t seem quite right, our team is here to help between 9 AM and 5 PM MST, Monday through Friday..
🔗 Echo Water Support: You've got Questions, We've Got Answers!
Hydrogen Water Overview
🔗 Hydrogen Water Storage | How to Store, how long does hydrogen last after a cycle, can it be put in a different container other than my Flask
🔗 Guidelines for Using Hydrogen Water with Cold Water, Heat, and Additives
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