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Showing posts from August, 2011

The Cheerful World Of Japanese Manhole Covers

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From the Dish and Andrew Sullivan “The Cheerful World Of Japanese Manhole Covers” The Cheerful World Of Japanese Manhole Covers by Maisie Allison Michelle Aldredge  introduces   us to a minor feat in public art: One of my favorite book discoveries this summer is  Drainspotting  by Remo Camerota. The book celebrates an array of fascinating manhole cover designs from Japan. According to Camerota, nearly 95% of the 1,780 municipalities in Japan have their very own customized manhole covers. The country has elevated this humble, practical object to its own art form. The designs depict everything from local landmarks and folk tales to flora and fauna and images created by school children. Camerota explains the evolution of these custom covers in  Drainspotting    http://www.gwarlingo.com/2011/drainspotting-61-amazing-manhole-covers-from-japan/ “ In the 1980s as communities outside of Japan’s major cities were slated to receive new sewer systems these public works projects were met with res

SWMM 5 - One Hour Rainfall Subcatchment Pathways

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One Hour Rainfall Subcatchment Pathways

Map Display of LID Usage in SWMM 5

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Subject:    Map Display of LID Usage in SWMM 5 A new Map Display feature in SWMM 5.0.022 is the LID Usage parameter which shows you whether a Subcatchment has LID’s or not.   You use it by using Map Display and choosing LID Usage as the Map Display.  LID - Low Impact Development.  Map Display of LID Usage in SWMM 5

Example VSP Pump in SWMM 5 - Version 1

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Subject:    Example VSP Pump in SWMM 5 - Version 1 Here is one way to model multiple pumps between the same downstream and upstream nodes using the pump curves and the Real Time Control Rules (RTC) in SWMM 5.  Here are the steps: 1.    Enter the data for three pumps in the browser by using the Add Pump Icon 2.    Enter three Pump Head/Flow Curves so that the 2 nd and 3 rd Pump Curves are the sum of the flows in the 1 st and 2 nd Pumps together and the sum of the flows in the 1 st , 2 nd and 3 rd respectively for the 2 nd and 3 rd Pump Curves 3.    Enter a RTC Rule in the Control Editor so that when the 1 st Pump is turned on – the 2 nd and 3 rd Pump is turned off 4.    Enter a RTC Rule in the Control Editor so that when the 2 nd  Pump is turned on – the 1 st  and 3 rd Pump is turned off 5.    Enter a RTC Rule in the Control Editor so that when the 3 rd  Pump is turned on – the 1 st and 2 nd Pump is turned off Using these rules you can see that for the 1 st Pump turns