The answer to 'drainage system schedule' is that properly maintaining your home's drainage system is crucial for preventing water damage and ensuring the long-term functionality of your landscaping. As a general guideline, homeowners should inspect and clean their drainage system at least once a year, typically in the spring or fall. This includes checking for any clogs or blockages in gutters, downspouts, and underground drainage pipes, and removing any debris or vegetation that may have accumulated.
It's also important to monitor your drainage system during heavy rain or snowmelt events to ensure it is effectively diverting water away from your home's foundation and landscaping. If you notice any issues, such as standing water or erosion, it's best to address them promptly to prevent further damage.