The answer to 'difference between drainage system' is that there are two main types of drainage systems for homes and landscapes: surface drainage and subsurface drainage. Surface drainage systems use things like swales, ditches, and downspout extensions to direct water away from the home and prevent pooling. Subsurface drainage systems use perforated pipes or tiles buried underground to collect and divert excess groundwater. The best system depends on your specific site conditions, water issues, and landscaping needs.
Surface drainage is generally less expensive to install but may require more ongoing maintenance to keep swales and ditches clear. Subsurface drainage can be more effective at removing groundwater but costs more upfront. Consulting a landscaping professional can help determine the right drainage solution for your property.