Abandon below grade downspouts

Exterior · Gutters and Downspouts · printed page 345 (PDF page 346)

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Book index entries

Below Grade Downspouts – Abandoned Downspout – Below Grade – Abandoned Downspout – and Gutter Gutter and Downspout

Text in the illustration

foundation wall
down-spout
downspout extension (clay tile)
add elbow and 6' to 10' horizontal extension to downspout
B
cap off downspout extension that extends below grade
A
basement
floor drain
cross section

Generated explanation

A cross section through a basement shows a downspout connected to a clay-tile extension running below grade alongside the foundation wall and into piping beneath the basement. A floor drain and drainage pipes beside the foundation footings are also shown. An enlarged detail illustrates abandoning the below-grade downspout connection by capping the underground extension. The downspout is redirected through an elbow into a 6- to 10-foot horizontal extension above grade, carrying roof runoff away from the foundation.