January 4, 2002--Level A: Branching off from the campus water main is a new feed for the fire protection system in Olin. (see photos of the trench work on August 9-20, 2001) The pipe enters Olin on Level A in a maintenance area where a sprinklerfitter attaches extensions and shut off valves.

January 4, 2002--Level A: Sprinklerfitters build a set of floor braces for the large pipe. They use pulleys and chains to maneuver the pipe while they anchor the braces.

January 4, 2002--Level B: A team of pipecoverers use sheets of aluminum backed insulation to cover the ductwork on Level B.

January 4, 2002--Level B: A pipecoverer sprays adhesive both on the duct and on the insulation and waits until it is tacky. Then the sheet of insulation is pressed against the duct and the edges tucked into the crack between the duct and the ceiling.

January 4, 2002--Level B: Thin layers of aluminum "tape" are smoothed over seams between sheets. Then to insure the insulation stays in place, the pipecoverer pin welds the insulation to the duct with a power tool.

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