In South Florida’s hot and humid climate, clogged AC drain lines are one of the most common causes of unexpected water leaks inside the home. Algae thrives in the moist environment of your condensate line, leading to blockages that can result in water damage, musty odors, and system shutdowns. Understanding why this happens—and how routine HVAC maintenance can prevent it—can save homeowners in Miami-Dade, Broward, and Palm Beach County from costly repairs and keep their AC systems running efficiently year-round.