Connecting 2 Gutter Downspouts

Prior to connecting these two drains the water from the right gutter drain would create a massive puddle on the ground.

Connecting 2 gutter downspouts.

Use a string and 1x2 stakes to lay out the trench. In other words downspouts are connected using a slip joint not a butt joint like the gutters so be sure to account for the overlapping slip joint when measuring usually 1 inch of downspout overlapping the elbow at each end. If you have inside corners subtract 5 inches. Over time that water would likely cause rotting issues for the porch framing and potentially turn into a leak problem in the basement over time.

Gutters over flows add downspout to bring water down from roof faster. Allow for about 1 1 2 inches of overlap at each connection. Watch and learn how and stop. If you have a straight run gable roof measure from shingle to shingle and then add 1 2 inch to each side for a slight overlap.

Cut a two inch long notch in the front lip of the gutter with tin snips to join a rain gutter section with an inside or outside corner piece. Tie the string to the downspout then stretch it out and around all the stakes. Run the tape measure from the bottom of the lower elbow to the ground and add 1 1 2 inches for the top joint where it connects to the. Insert an elbow up one inch into the bottom of the funnel shaped opening on the gutter which is called a gutter outlet.

Cut a four inch long notch to overlap and splice together gutter sections. The downspout is the piece that is attached to the side of the home and channels runoff to the ground away from your home. Mark the trench line photo by smith baer. Pound in two stakes 4 feet from the house and directly in front of each downspout.

Connect the elbow to the gutter step 1 place a ladder against the house directly under the gutter where the downspout will be installed. Its easy less than 30 minutes and under 30 00 in parts. Measure the total run of the gutter length you need. For outside corners measure from corner to corner.