Dig a trench about 6 inches wider than the drain pipe you plan to bury and dig the hole deep enough so that the.
Bury your gutter downspout.
Have your downspout extension and connector together then place on your gutter.
Repeat the similar procedure for the other end of the angle to connect it to the ground pipe.
Then remove the angle connector.
To do this i cut the black corrugated pipe added a t and aimed the pipe upwards to the downspout.
For the garage i used a downspout adapter without a leaf guard since there aren t trees close enough for that gutter to get clogged up.
Inspect the ground above the buried downspout after the first two or three substantial rainfalls.
Map your downspout burial route check local rules for drainage regulations and contact your local utility offices before you dig.
Start laying your drain pipe by attaching a 90 degree angle pipe to the gutter downspout.
Since my in ground pipe ran right past the garage i had the garage downspout dump in as well.
Dig a trench along the desired route of the drain pipe.
Take a drill and remove the old screws.
Cover the inside of the fitting with pvc cement and push it into the lower end of the gutter downspout.