For several years, a 12-story building in Midland, Texas, had been experiencing sewer odors in the top four floors. Owners of the 35-year-old building had spent thousands of dollars trying to track down the smell. In August, Richard Pierce, a licensed master plumber in Texas and New Mexico, became the latest sleuth on the case.“That’s the largest building we’ve done,” said Pierce, plumbing service manager at First Service A/C Contractors in Odessa, Texas.The job wouldn’t be easy. Each time a new tenant moved in, the vacated space was remodeled and covered with drywall.“We were lucky to find a spot in
