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Make, store, and transport clean drinking water in just 30 minutes.

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a Waterbag

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We’re working with great organizations around the world!


Meet the DayOne Waterbag™

The DayOne Waterbag™ is 2.5 gallon (10-liter) personal water purification unit with integrated filter and backpack straps, providing all four of the functions needed to treat and safely store drinking water:


Our treatment solution is the P&G™ Purifier of Water Packet. The Waterbag is compactly designed for immediate distribution after a disaster to treat contaminated freshwater sources, protecting survivors from the leading causes of diarrheal disease.

  • All-in-one patented solution
  • Closed multi-treatment system
  • Uses P&G™ Purifier of Water
  • Meets emergency drinking water guidelines
  • U.S. Marines Ranked #1 in water performance and user operation
  • Clear and simple user instructions
  • Easy to transport
  • Tested Worldwide

Key Features

The Waterbag weighs 22 lbs (10 kg) when full.

The Waterbag holds 2.5 gallons (10 L).

The Waterbag purifies 2.5 gallons (10 L) in 30 minutes.

The Waterbag measures 14 inches (width) by 31 inches (tall).

The Waterbag provides a family of 4 with clean drinking water for up to 2 months.

The Waterbag treats water using P&G focculant / disinfectant packets and a filter.

The Waterbag removes cysts, viruses, bacteria and arsenic from contaminated water sources.

The Waterbag is compact for efficient shipping and transport.

Where to Buy

In addition to buying our products on this website (click here to visit our Store page), you can also purchase our products at these retailers:


Fact: 3.4 million people die each year from water related disease. This is almost the entire city of Los Angeles. We’re empowering communities around the world to create clean drinking water using the DayOne Waterbag.

More about DayOne Response™

DayOne Response™ develops and supplies innovative solutions for disaster relief specifically for clean drinking water and is a distributor of P&G™ Purifier of Water packets. DayOne Response™ also distributes water and sanitation products globally to relief organizations, government agencies, and public and private entities. DayOne Response™ supports the Procter & Gamble Children’s Safe Drinking Water Program’s goal to deliver more than 2 billion liters of clean drinking water each year by 2020.

People around the world are using the DayOne Waterbag to create clean drinking water!

We’re getting great feedback!

I think the DayOne system is a game changer and could have significant impact outside of disaster response. I have seen firsthand the daily effort people in Africa spend on gathering water and think your design could serve as a labor saving device for the water collectors as well as its public health impact.- Keith Neroutsos, Director of Procurement, PATH
DayOne Purification Waterbags™ are a great product – the size and flexibility allowed it to be transported to the Philippines quickly and efficiently. When the next natural disaster hits, Giving Children Hope knows that DayOne Response will deliver life saving water with a product that is versatile, giving us many options to get water to people that need it most.- Sean Lawrence, Executive Director at Giving Children Hope

Recent Press

Changing the Way the World Looks at Water with DayOne Response

Disasters happen, whether we are expecting them or not. While they can be chaotic and terrifying, there are companies out there who strive to pick.. Read More →

World Water Day – We Invite You to Join Us in Curbing the Global Water Crisis

Today, March 22nd, is World Water Day. Millions of people around the world lack access to clean drinking water. The Millennium Development Goals called on.. Read More →

Our goal is to deliver clean water starting day one, responding to disasters around the globe.