February 2015
Volume 57 Number 2
 
Cover
WQA Aquatech Pre-show Guide
 Pages: 34 - 36
WQA Aquatech USA is a confluence of the influential people, technological innovations, learning and networking opportunities relevant to the water improvement industry.  read more
 
Principles of Filtration: How do Filters Filter Anyway?
by Larry Henke  Pages: 38 - 44
Filtration has long been an important technique in water treatment. It’s used to remove iron deposits from water, to clear up waters turbid from silt, inorganic sediments and biological materials, both living and decomposing.   read more
 
Features
Softener Efficiency — It's Not Just about the Salt!
by C.F. ‘Chubb’ Michaud, CWS-VI  Pages: 46 - 50
Water softener efficiency is a term generally used to rate a water softener by the relationship to its recovered capacity per pound of salt (NaCl) used in regeneration.   read more
 
Self-regenerating Water Softener Rebates and Bans Update
by H. Martin Jessen and Michael T. Mecca  Pages: 52 - 56
Several communities are still actively taking action to regulate self-regenerating water softeners (SRWS) to reduce salinity levels in wastewater, which in turn, is causing high water treatment costs or discharge issues.  read more
 
Web Exclusive
Columns
Dealer Profile: Michiana Water Conditioning Makes Smaller Look Very Successful
by Denise M. Roberts  Pages: 58 - 60 read more
 
Water Matters: Efficiency of Water Softeners under NSF/ANSI 44
by Rick Andrew  Pages: 62 - 64 read more
 
On Tap: Human Perception is a Failed Indicator of Water Quality Concern
by Kelly A. Reynolds, MSPH, PhD  Pages: 66 - 68 read more
 
Viewpoint: February 2015
by David Westman  Pages: 10 read more