The answer to 'best drainage system' is a properly designed and installed drainage system that effectively channels excess water away from your home's foundation. This typically includes a combination of surface drainage, such as grading and swales, and subsurface drainage, such as perforated pipes and gravel beds.
A well-designed drainage system can prevent water damage, flooding, and soil erosion around your home. It's important to consider factors like the slope of your property, soil type, and local climate when selecting the best drainage solution for your needs. In some cases, it may be necessary to consult with a professional landscaper or drainage specialist to ensure your system is properly designed and installed.