Sunday, September 29, 2019

Cities can replace aging pipes & save trees at the same time

Urban trees matter. 

So does safe drinking water. Glad to see there communities are looking at alternatives to business as usual which coordinate both.
The City of Chicago will pilot two programs to limit the environmental impact of water pipeline repair construction, particularly by not requiring the excavation of trees in neighborhoods. The programs were announced [recently] amid outcry from residents and city aldermen over tree removal.  
One technique, known as cured-in-place pipe (CIPP) will place a resin-soaked textile liner tube in an existing pipe. Once it hardens, it forms a corrosion-resistant replacement pipe, and can be inserted without excavating the entire length of the pipe....The technique has also been used in cities like Toronto for years, and has some Chicago suburbs have successfully employed the solution. 

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