Roof Downspout Disconnection

If necessary use needle nosed pliers to crimp the old downspout pipe so it slides into the new elbow.

Roof downspout disconnection.

This prevents stormwater from directly entering the storm sewer system or flowing across a connected impervious surface such as a driveway that drains to a storm sewer. Downspout disconnection is the process of disconnecting the downspout from a pipe or the paved area. Water is then redirected to flow into a rain barrel or to a lawn or garden where it can soak into the ground. Downspouts may also be connected to a pipe in the ground that connects directly to the sanitary sewer or storm drain system.

Use similar downspout material or use adapters to change to plastic pipe. Some downspouts cannot be disconnected. Description simple downspout disconnection involves directing flow from roof downspouts to a pervious area that drains away from the building see figure 4 3 1. Downspout disconnection is the process of separating roof downspouts from the sewer system and redirecting roof runoff onto pervious surfaces most commonly a lawn.

Disconnect and help keep excess water out of sanitary sewers. Drill a hole on either side of each fitting and screw in a sheet metal screw to secure the fitting.