A crew from R & TR Installers of Walla Walla were at work Monday installing new carpet in the courtroom in the Columbia County Courthouse in Dayton. According to Teeny McMunn of Hometown Carpets in Dayton, workers were on the job over the weekend moving benches and furniture. R & TR began removing the old carpet Sunday. The work was expected to be completed Wednesday. The carpet replacement was made necessary earlier this year when an HVAC worker broke a refrigeration line, which leaked refrigerant through the ceiling in the center of the courtroom and onto the carpet. Repairs were made to the ceiling in April. Repair costs were covered by the HVAC contractor's insurance carrier.