The Marine Corps is investing in a next-generation water purification system that will allow individual Marines to get safe, drinkable water straight from the source.

The Individual Water Purification System Block II is an upgrade to the current version issued to all Marines.

“With IWPS II, Marines are able to quickly purify fresh bodies of water on the go,” said Jonathan York, team lead for Expeditionary Energy Systems at Marine Corps Systems Command. “This allows them to travel farther to do their mission.”

Finding ways to make small units more sustainable to allow for distributed operations across the battlefield is a key enabler to the Marine Corps becoming more expeditionary. Developing water purification systems that can be easily carried while still purifying substantial amounts of water is part of that focus.

The current system filters bacteria and cysts, but Marines still have to use purification tablets to remove viruses. That takes time – as long as 15 minutes for the chemical process to work before it is safe to drink. IWPS II uses an internal cartridge that effectively filters micro pathogens, providing better protection from bacterial and viral waterborne diseases.

“IWPS II will remove all three pathogens, filtering all the way down to the smallest virus that can be found,” said Capt. Jeremy Walker, project officer for Water Systems. “We have removed the chemical treatment process, so they can drink directly from the fresh water source.”

IWPS II can also connect to Marines’ man-packable hydration packs.


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