Underground Drainage

Example Plan from Dennis Project

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Dennis_Drainage Plan (1).pdf

417.6 kB

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Avoid using 90 degree turns underground. It causes clogs. Use “Y” turns instead, which consists of a pipe in a straight run with a pipe intersecting at 45 degrees.

Chat GPT Instructions:

Start by locating the downspouts of the building where the drainage system needs to be installed.

Determine the elevation of the downspouts and the desired slope for the drainage system. Typically, a minimum slope of 1/8 inch per foot is recommended.

Calculate the amount of water that needs to be drained based on the size of the roof and the amount of rainfall in the area. This information can be obtained from local weather stations or building codes.

Choose the type and size of the drainage pipes that will be used. PVC pipes are commonly used for underground drainage systems.

Decide on the placement of the drainage pipes. The pipes should be installed at a depth of at least 12 inches below the ground surface to prevent freezing during cold weather.

Plan the route of the drainage system to ensure that the pipes will be sloping downward from the downspouts to the drainage outlet.

Install a catch basin at the outlet of the drainage system to prevent debris from clogging the pipes.

Install the drainage pipes, making sure to use proper fittings and connectors to ensure a secure connection.

Backfill the trenches with soil and compact the soil to prevent settling.

Test the drainage system by running water through the downspouts and checking for any leaks or blockages.

Finally, consider adding a filter or perforated sleeve around the drainage pipes to prevent debris from entering and clogging the system over time.

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