Furnace maintenance and inspection. Furnace operating normally. Large rust damage from condensate pump and fitting leaking. Client had purchased a condensate pump and asked if I could replace. Replace condensate pump and test for leaks. No leaks present. If leak returns on furnace condensate termination to pump, a proper fitting from keeprite may need to be ordered, as the fitting is OEM to these furnaces. A spare parts bag would need to be ordered. Furnace is operating normally at this time.