[Water News] DJ Gongol & Associates Water News - April 26, 2010

[Brian Gongol]

Thanks for reading this week's edition of our weekly water news report. 
Please feel free to forward this news to a colleague.

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Highlights from the past week
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Iowa's new wastewater-treatment rules await EPA approval, which puts a 
lot of new projects in limbo:
http://www.pumpstoreusa.com/newsletter/2010/04/19/

A plan to create a college-level curriculum for water and wastewater 
treatment plant operators is moving ahead at Des Moines Area Community 
College:
http://www.pumpstoreusa.com/newsletter/2010/04/20/

Hail season is back. Did you know the largest hailstone in US history 
fell on Nebraska?
http://www.pumpstoreusa.com/newsletter/2010/04/21/

Earth Day turns 40:
http://www.pumpstoreusa.com/newsletter/2010/04/22/

Why at least one war this century will be fought over water:
http://www.pumpstoreusa.com/newsletter/2010/04/23/


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Featured product: Stainless steel sluice gates
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For decades, cast iron was the only material allowed by AWWA standards 
for big sluice gates -- but refinements in design and improvements in 
material availability have made other materials superior to cast iron.

Cast iron gates obtained their strength from their sheer bulk. They 
weighed a lot, and that allowed them to hold water back.  Stainless 
steel sluice gates, by contrast, gain their strength by virtue of their 
structural design.  This means stainless steel gates can be built much 
lighter than comparable cast iron gates -- just like lighter but 
better-engineered modern cars are often safer than older vehicles which 
were only safer when they weighed more than the cars with which they 
collided. The lighter weight of modern stainless steel gates results in 
better-performing gates that are easier and more economical to install.

Moreover, stainless steel gates make no metal-to-metal contact at the 
seating perimeter; instead, the stainless steel plate is channeled by 
UHMW (ultra-high molecular weight) polyethylene guides, which reduces 
the amount of friction encountered when the gates are raised and lowered 
and improves the quality of the seal. As a result, stainless steel gates 
can be guaranteed to out-perform the leakage rates allowed by AWWA 
standards for cast iron gates -- in some cases, by a factor of ten or 
more. Plus, stainless steel gates don't seize like cast iron gates do.

If you'd like to know more, please visit 
http://www.pumpstoreusa.com/gates/sluice or call us at 515-223-4144 and 
ask for details.


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Your comments are welcomed
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If you have any comments to share with us about this newsletter, or if 
you have questions about any of our products, please visit 
http://www.pumpstoreusa.com/contact/ and let us know. Thanks for reading.


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About
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This newsletter is issued weekly by DJ Gongol & Associates, Inc., 4801 
Pommel Place, West Des Moines, Iowa 50265-2938. It is sent by voluntary 
subscription only.