November 2007
Volume 49 Number 11
Back from the Brink
by C.F. 'Chubb' Michaud
A fellow speaker at an ion exchange conference in Cambridge, England back in 2000 stated that after 50 years in ion exchange academia, he was retiring. In announcing that impending event, he paralleled his career with the life cycle of the ion exchange industry.  read more
Making Sense of an Incomplete Water Analysis
by Frank DeSilva
The water treatment professional is often required to recommend a treatment scheme to rectify problem water. More often than not, the initial water analysis data that the end user provides is not sufficient to make a valid recommendation.   read more
Swimming Pool and Spa Mathematics for Service Professionals
by Connie Sue Centrella
The service sector of the swimming pool industry has long been challenged with how to effectively manage cleaning routes, provide pool and spa owners with the best water quality and maintain pool equipment at its optimal operational efficiency.  read more
Residential Pool Ozone Use
by Beth Hamil
Most people are familiar with the word ozone, but that is where the familiarity ends. In nature, ozone is among the most essential chemicals on the planet, existing as a gaseous component of the upper atmosphere. The Earth's ozone layer protects us from the suns harmful ultraviolet rays and without it, life on earth would likely be impossible.  read more
Ozone in Pools and Spas: An Opportunity for Profit
by Cameron Tapp
There is a vibrant recreational water market in need of the services of the skilled water treatment professional. Opportunities include installation and service of municipal, commercial and residential pools and spas and a host of specialty waterscapes and features...  read more
WQA Recertification Quiz

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Salt System Science
by Joe Sweazy
In recent years, nothing has been embraced by the swimming pool industry like in-line saltwater chlorine generation. This amazing technology uses common salt to sanitize a swimming pool. While this technology is not new...  read more
Reaching Out to India: The Water Quality Association Extends Its Hand
by Latasha Williams
The Water Quality Association (WQA) is an international trade association representing the residential, commercial, industrial and small community water treatment industry.  read more
by Laura Mirviss
Just as he had every other Saturday morning, Carlos Hernandez sat at the kitchen table, eating the eggs his mother prepared. But he was frustrated that day: weeks had passed and still, he and his partners had not located a suitable hard residue to test in their research project.  read more
Web Exclusive
Become a Profile in 2008
by WC&P Staff read more
Ashes to Ashes, Dust to Dust: The Use of Test Dust in NSF/ANSI 42 and 53
by Rick Andrew read more
Harmful Water-Based Amoeba in the News Again
by Kelly A. Reynolds, MSPH, Ph.D. read more
Tech Talk: e-pportunity--Aqua Maestro Takes Bottled Water to the Next Step
by Brett S. Spitalny read more
Viewpoint: Ranting and raving
by Karen R. Smith read more