Walco Industries Ltd collaborated on the Great Hall Renewal Project at The University of British Columbia, a renowned institution known for its global impact. The project's goal is to enhance the seismic resiliency of the space while preserving the original appearance and architectural design by Arthur Erickson. Walco Industries Ltd was entrusted with the task of safely removing grout from the pillar structure to facilitate the insertion of structural tension support. The hydrodemolition method fed a high-pressure water jetting line through the openings on each end. The grout was encased in metal, allowing us not to damage the surrounding concrete. Jackhammering or other mechanical methods would cause a vibration, and with this vibration, the potential to cause cracking or microfractures around the metal encasing.