How to fix an outdoor drain that is slow to empty?

 
 Diagnose the Problem 
 

• Examine the drain opening for visible debris, sediment, or plant roots obstructing the flow.
• Determine if the slow drainage is isolated to one drain or if it is affecting multiple areas.
• Check surrounding surfaces to ensure that grading or ground settling isn’t forcing water into the drain inefficiently.

 
 Clear Surface Debris 
 

• Remove any leaves, twigs, or trash that might be clogging the drain cover and the immediate area.
• Utilize a scoop or a gloved hand to clear accumulated debris that could be blocking the drain entrance.

 
 Remove Blockages in the Drain 
 

• Use a drain snake or auger to reach further into the pipe, dislodging any obstructions blocking water flow.
• If roots have infiltrated the drain, carefully cut them with hand tools while taking precautions not to damage the pipe.
• Consider using a high-pressure water jet if available, which can help to flush out built-up sediment and obstructions.

 
 Flush the Drain with Water 
 

• Direct a strong stream of water into the drain using a garden hose or pressure washer if accessible.
• Allow the water to force its way through the drain to clear out lingering sediment that might be slowing the drainage.
• Repeat the process several times to ensure the pipe is thoroughly cleaned of any partial clogs.

 
 Inspect the Drainage System and Surrounding Landscape 
 

• Ensure that the drain pipes are properly connected and that there are no dips or sags where water can collect.
• Check that the surrounding landscape is graded correctly so that water flows toward the drain and away from the foundation.
• Verify that connecting elements like downspouts or other drainage channels are not contributing to the problem by delivering excess water.

 
 Perform Regular Maintenance 
 

• Schedule regular inspections and cleaning to prevent future clogs.
• Remove debris periodically from both the drain opening and the internal piping where accessible.
• Consider installing a grate or filter to reduce the amount of debris entering the drain during heavy rain.

Local experience in areas such as St. Louis and Nashville has shown that consistent maintenance is key to preventing drainage issues.

 
 Seek Professional Assistance if Necessary 
 

• If the problem persists after these steps, consult a licensed plumber or drainage specialist to conduct a more thorough inspection.
• Professionals may use specialized equipment such as cameras or advanced hydro-jetting tools to diagnose and resolve deeper issues.
• Addressing underlying structural or environmental concerns might require expert analysis to prevent recurring slow drainage.