Metraloop Solves Pipe-Guiding Dilemma for Hotel Too expensive to retrofit pipe guides First there was a leak. And then, upon closer inspection, there was a bigger problem. The leak brought to light the fact that the 4-pipe riser system at the 10- year-old, 40-story Chicago hotel had completely failed. “Every pipe had bent,” explained Tim Hesterman of Imbert Corporation, a manufacturers rep firm in Chicago. “The contractors had installed two expansion joints in each of four risers, locating them at approximately the 12th and 28th floors. However, due to the location of the risers, and their proximity to each other, proper guiding was virtually impossible. As a result, every riser pipe had bent at the 6th floor. ” The 40-story risers were comprised of 1'' to 2-1/2'' copper pipe. After ten ye

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