[Water News] DJ Gongol & Associates Water News - November 16, 2009

[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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Are optical dissolved-oxygen sensors better than membrane-based DO 
sensors? A comparison from a source that makes both:
http://www.pumpstoreusa.com/newsletter/2009/11/09/

What happens when the power goes out and a lift station can't run anymore:
http://www.pumpstoreusa.com/newsletter/2009/11/10/

Engineers are starting to design a new lake for central Nebraska:
http://www.pumpstoreusa.com/newsletter/2009/11/11/

What happens when nanoparticles reach the water?
http://www.pumpstoreusa.com/newsletter/2009/11/12/

A Virginia town loses electricity to a major storm -- and it affects 
their water supply:
http://www.pumpstoreusa.com/newsletter/2009/11/13/


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Featured product: Wastewater samplers
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Many people are familiar with wastewater samplers that use peristaltic 
pumps to draw the sample into the measuring chamber before depositing 
the sample into either a composite sample chamber or one of a series of 
sequential sampling bottles. But peristaltic pumps create a maintenance 
nuisance by requiring that the sample tubing be replaced regularly -- 
and they change the nature of the sample as they bend and crush it as it 
is drawn into the sample chamber.

Instead of using unreliable peristaltic pumps for sampling, a much 
better approach is to use a vacuum pump to create a powerful suction 
inside the sample chamber itself.  This approach can meet and exceed the 
suction capacity delivered by a peristaltic pump, while eliminating the 
maintenance hassles and leaving the sample itself unchanged from the 
point it enters the hose to the point it is deposited inside the 
container.  We're pleased to be able to offer just such a type of 
wastewater sampler through QCEC.

If you'd like to know more, please visit 
http://www.pumpstoreusa.com/samplers/ 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.