Found 3 sources of water leak at furnace # 1 th 3/4" drain was broken at floor and not glued on fitting just above. Was able to chisel floor out enough to cut out broken pipe and glue a coupling in. Glued other parts as well. #2 Drain was broken outside just above pipe that Line sets run through. This was allowing condensation to fill pipe and run back into house. Dugout drain and repaired. Also extended pipe out far enough so it would drain into lineset pipe any more. # 3 pipe for line set was not sealed. Sealed pipe and vacuumed up about 15 gallons of water. Used 1' 3/4" pipe 1- 45° 3/4"pvc 2- 4 /4" coupling and one can of foam spray