August 2001
Volume 43 Number 8
 
Cover
Spiral-Wound Elements for Potable Water Treatment
by Dave Paulson & Gary Davis
Crossflow membrane technology is an application with broad uses in the drinking water treatment industry...  read more
 
Advances in String-Wound Sediment Filter Cartridges
by Hamid Omar
In the last 65 years, string-wound filter cartridges have made vast improvements...  read more
 
A Dealer’s Perspective: Reducing MTBE & BTEX in Private Wells
by John Beauchamp, CWS-VI, CI, CSR
Methyl tertiary butyl ether (MTBE) and benzene, toluene, ethylbenzene and xylenes (BTEX compounds) are VOCs associated with gasoline contamination of water...  read more
 
Filtration: Activated Carbon Remedy for Private Well MTBE Contamination
by Mark Hawkins & Gina Hess
Due to a leak at a gas station, two Pennsylvania communities had MTBE released into their drinking water in nearby wells...  read more
 
Features
WQA Recertification Quiz -- August 2001
by Mark Rowzee
This quiz is based on John Beauchamp's article: "Reducing MTBE and BTEX in Private Wells"...  read more
 
Crisis in Confidence: How Culligan`s Continuing Franchise Dispute Relfects on the Man and His Plan
by Carlos David Mogollón, WC&P Executive Editor
Several months after new franchise contract talks between Culligan International and its largest dealer franchise group broke down in a rare display of public dissension, and the dispute is still a sensitive topic...  read more
 
Ion Exchange: Hydraulics -- Taking the Pressure Off Your Softeners
by C.F. (Chubb) Michaud, CWS-VI
To provide adequate water service to a home or business, the design engineer looks at only one primary thing -- the flow rate requirements at the point of use...  read more
 
Ion Exchange Applications: Selecting the Right Resin for the Job
by Mike Keller
Aluminum, barium, lead, radium, arsenic, nitrate, polyphosphate, uranium -- these are only a few of the more tricky positively and negatively charged ions that ion exchange will reduce...   read more
 
Keeping It Close to Home: Selecting RO for Drinking Water Purification Systems
by Jon Goodman
RO offers the "tightest" filtration available today, and is the technology of choice for a growing number of customers who want added security of purified water in their homes...  read more
 
An Open-Loop Recirculation Flow Pattern, Part 2 of 2: Eliminating Water Waste in Membrane-Based POU Applications
by Ted Kuepper, Robert Lovo & Mark Silbernagel
All water treatment designs have limitations and a membrane system that doesn't waste water is certainly no exception...  read more
 
Ozone Generation Technology: Past, Present & Future
by Dale Mork
Increasing instrumentation and predictive technology demands by customers make better monitoring and control options a prerequisite for future ozone applications, particularly with concerns of bromate formation...  read more
 
Adding the Internet to Your Marketing Toolkit
by M.H. (Mac) McIntosh
What role should online marketing or the Internet play for your company and how much of your marketing budget should be used to fund it?...  read more
 
Web Exclusive
Columns
Viewpoint: Perrier Restricts Ozone Use Awaiting Better Control Options
by Carlos David Mogollón, WC&P Executive Editor read more
 
Two Sides of Culligan, Part 1: Northbrook & the Dealers read more
 
All About Water Treatment--EcoWater: Adjusting to Times in the Grand Canyon State read more
 
World Spotlight: A Walk Among the Water Doctors of the Philippines
by Jerry Shockey read more
 
ComputerWare: Dealers Needn’t Fear Additional Market Niches; They May have the Appropriate Software In-House to Manage IT
by Charles D. (Charlie) Kent read more
 
Bottom Line: Time -- Your Real Currency that Must Be Depositied read more
 
Chromium: The Risk & The Fix
by Kirk Dammeyer & Rob Herman read more
 
The Evolution of New Bacterial Pathogens
by Kelly A. Reynolds, MSPH, Ph.D. read more
 
Website of the Month: Net Fun in the Summertime -- Something for Everybody
by Ronald Y. Pérez, WC&P Senior Editor read more