The Clean Water Process

Advanced Filtration Solutions

3 Stage Filtration and UV Disinfection Process

First Water holds several US patents for its truly unique technology.  All of the systems have been engineered to produce safer, cleaner water from salt-free (fresh water) sources for many disaster response and community applications.  The core to the technology involves multi-stage filtration including an in-line pre-filter on the intake hose for large particulates, a sediment filter to reduce turbidity, a carbon block for improving taste and smell, and a high strength UV bulb for disinfection.  The UV system uniquely features a flange and quartz sleeve around the bulb that forces the water to circulate around the UV bulb twice, providing significantly greater “contact time” and greater neutralization of biological contamination.

All First Water systems contain a true “lamp-out” feature to ensure that the water coming through is safe to drink.  The patented process shuts down all water flow if the voltage to the UV bulb is reduced for any reason.  This may occur when there is an electrical problem or when the UV is reaching the end of its useful life.

The Filtration Process

In addition to the cleaning power of the technology, all systems are engineered for fast setup and tear-down, as well as minimal maintenance and easy operation by persons without technical skills.  All systems are delivered ready to run, with low cost consumable filters that occasionally need to be replaced.  The in-line sediment filter is washable and re-usable.

The sediment filter only needs to be replaced when the flow of water starts to significantly slow down.  This is dependent on the quality of the incoming water.  First Water recommends that users select clear water for their source water whenever possible.  Even though the water is likely contaminated, relatively clear water will require far less filter changes.  Because the carbon block captures and hold impurities, it should be changed every six months with normal usage.   The UV bulb is rated for 2,000 hours of use and should be changed after that time frame.