Arrived on site for plumbing service and found the existing P-trap leaking due to corrosion and worn slip-joint washers. Shut off water, removed the damaged P-trap, and installed a new properly sized P-trap assembly. Ensured correct alignment and slope for proper drainage, tightened all connections, and tested the drain for leaks. Drain is now flowing correctly with no leaks present. Customer was informed of the repair and proper drain usage.