The answer to 'how does drainage system work' is a well-designed drainage system helps remove excess water from your property to prevent flooding, erosion, and other water-related issues. Drainage systems typically include a network of pipes, channels, and other components that collect and divert water away from your home's foundation, landscaping, and other critical areas.
The main components of a drainage system include gutters and downspouts to collect water from the roof, underground pipes or channels to transport the water, and outlets or dry wells to release the water safely away from the home. The specific design and layout of the drainage system will depend on factors like the size and slope of your property, the soil type, and the location of the home.