Condensate can be directly discharged to the ground to drain, why should the riser,
Condensate pipes are generally located in the outdoor air conditioning board.
There are a lot of practice is the condensate drain directly connected with the ground leakage, no use in the winter or less use, the ground water seal damage, odor along the condensate pipe to the room.
If the air conditioning outdoor unit set up a place where there is no leakage can be dedicated condensate pipe
