Measure in 4 inches from the end corner of.
Install gutter downpipe.
How to add a downspout in an existing gutter step 1.
Place a step ladder under the area you are installing the downspout.
Watch and learn how and stop.
Its easy less than 30 minutes and under 30 00 in parts.
Gutters over flows add downspout to bring water down from roof faster.
Fit the gutter in place which normally just clips in with the appropriate stop ends connectors and gutter outlet for the downpipe.