A troubleshooting inspection was performed for a tripping breaker at the pool sub-panel. The sub-panel is fed from the meter-main, and a direct short within the sub-panel caused the main breaker to trip. The fault also damaged the bus bar, resulting in the sub-panel requiring full replacement. The short originates from faulty pool equipment, which must be inspected and/or replaced prior to installing the new sub-panel. Estimates for the required repairs have been attached.