Primary drain line clogged - water in aux drain pan in attic Vacuumed water from pan, flushed drain line from attic out clogged - vacuumed line outside still clogged - worked drain line from inside to outside using nitrogen to free up clog - vacuumed lines and flushed with cleaner and water - tested with a gallon of water - drain line is now unclogged and free from debris at this time - primed drain line trap for proper drainage - some water may still be present in the drain pan and will evaporate over time - cannot remove every bit of the water