Approved HVAC repairs were scheduled for a commercial customer in Hemet California today. Upon arrival, our technicians began work on the store's circulating pump that needed its gaskets replaced in between the motor flange and volute. We had two technicians onsite as the pump was overhead and, for safety, a second hand was needed. After removing and dissembling the pump, found that the shaft had broken inside. Will need to replace entire pump. Gaskets will be installed with new parts once they arrive, ordering and updating customer.