- rain barrels
- Packaged Systems
Upstream Systems with patented Crossfire Technology are validated to achieve the same standards as NSF/ANSI 55 Class A, but are not certified, where regulations do not require it. Field-tested and proven with over a decade of demanding municipal, industrial and commercial applications.
Dissolved organics and high tannin content are the primary contributors to the reduction of UV Transmittance (UVT) in surface waters. Tannin content and low UVT render conventional UV technology ineffective. Our Upstream units are engineered specifically for these types of cases where others fail.
Upstream is engineered to reduce e-coli, bacteria, cysts like cryptosporidium and giardia, legionella and most viruses to safe levels –a minimum of 99.99% reduction. Upstream systems are effective for the broadest range of pre-treatment water quality with UVT as low as 50%.
Upstream Systems are for Potable, Reuse and Rainwater applications and are effective even on surface water from lakes, streams, cisterns and dug wells.
|Broadest Range of Pre-treatment Conditions|
|Conventional “Light in a Pipe” Systems||Current Hallett and Upstream Systems|
|Hardness||<85mg/L (grains)||Up to 855mg/L (grains)|
|Iron||<.3 mg/L||Up to 3 mg/L|
|No/Low Flow||Overheating – lower UV intensity||No Effect – 100% UV intensity|
|UVT||Must be 75% to over 90% to achieve advertised dose||As low as 50% for surface water and reuse applications|
|Flow Control||Flow Restrictor is an option – may not be safe||All UV Pure potable water systems have flow restrictors – Safe!|
For Specifications And Product Sheet Click Here