Where should the AC condensate drain line go?

Your AC condensate drain line should route to a safe discharge location outside your home—typically near the foundation, a dedicated drainage system, or a floor drain in a utility area. The key is to ensure it drains away from your home’s structure and remains clear of blockages to prevent water damage or mold growth. When we replace or service an AC condensing unit, Mainstream always inspects the condensate drain to ensure it’s properly placed and flowing freely.