The Best System for the Application
Water Quality Products
September 2006
By Jerry Horner
Learning to properly size residential POE softeners can increase efficiency and boost sales
Let the Good Times Flow
Water Quality Products
June 2006
By Amy Osgood
Water park solves flow-monitoring problems with insertion magmeters
Out Here, Failure is Not an Option
Water Quality Products
January 2006
By James Bratton
Equipment reliability is a must in small towns like Dunn Center, N.D., where Goulds Pumps turbines and Aquavar controllers are in demand.
Discovering the Secret Ingredient
Water Quality Products
January 2006
Ken Castro
It’s getting increasingly difficult to keep track of all the new and potentially lucrative opportunities currently available to today’s water industry professionals. While industries are demanding more from their water, governments are demanding tighter restrictions on the way water can be used and discharged. That’s where ozone comes in.
UV Disinfection Systems
Water Quality Products
November 2005
By Sandro Pecile
Understanding pressure drop when installing NSF/ANSI 55 Class A UV disinfection systems
Maximizing Pump Life
Water Quality Products
November 2005
Darla Jean
Proper selection, installation and maintenance are the key elements in maximizing pump life
It’s All About the Service
Water Quality Products
October 2005
Neda Simeonova
Honest, trustworthy, courteous—the three rules that every water service technician should follow.” This statement has lingered in the back of my head since I met with Ronald Gagnon CWS-IV, CI, an experienced dealer and owner of Aqua-Pure Water Conditioning, Inc. in Zion, Ill.
What Is L3/D4 and Why Is It Good for the Seals If It Is Low?
Pump Source
April 2003
What is L3/D4 (L cubed over D to the fourth)? It is a measure of pump rotor stiffness, its ability to resist radial load and to minimize deflection. It comes from the basic cantilevered beam deflection formula, which you can find in any book on mechanics: y = F x L3 / (3 x E x I), where F is radial load, L is cantilevered length, E modulus is the elasticity of the material and I is moment of inertia.
The O-Zone: Today's Lesson: Ozone Installation
Water Quality Products
February 2003
Roger Nathanson
The installation of ozone equipment on well applications utilizes the same principles and techniques as chlorinators, air injection and softener systems. There are only minor variations in sequence, parts and details.
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Prefabricated Pumping Systems
Water Engineering & Management
February 2003
Tom Levey and Stephen Jeffus, P.E.
Some engineering firms still harbor the misconception that prefabricated systems are too small to handle the enormous volumes of water that municipalities and private water companies transport. Though once limited to certain-size projects, technological innovations and manufacturing breakthroughs have dramatically expanded the application of prefabricated pump systems over the past several years.
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Open Trench Failures Continue to Rise
Water Engineering & Management
March 2002
Del Williams
Despite the fact that hundreds of people are killed and severely injured in open-trenching accidents throughout the United States every year, most municipalities continue to award construction contracts to companies utilizing open-trench methods, when safer trenchless technology is available to them.
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Infrastructure Relocation for a Growing Urban Community: Juggling Schedules and Methods
Water Engineering & Management
March 2002
In the last decade, municipal leaders of medium-sized cities across the United States have rediscovered downtown urban centers. Economic development initiatives and long-term growth once again focus on these areas. As plans for revitalizing downtown neighborhoods begin to take shape, local governments are finding that existing infrastructures are inadequate to support the utility needs of incoming commercial and residential tenants. As a result, the need for infrastructure rehabilitation and utility service expansion is in high demand.
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