To do this i cut the black corrugated pipe added a t and aimed the pipe upwards to the downspout.
Gutter drain pipe depth.
If you have hard clay soil or rocky soil you can use an electric hand held demolition hammer tool to dig a trench.
The trench should be at least 6 inches wide and slope down slightly 1 to 2 inches per length of pipe so water drains away from the downspouts.
This trench would follow the natural contour of the ground.
Since my in ground pipe ran right past the garage i had the garage downspout dump in as well.
The fastest way is to rent a trenching machine from a local tool rental.
This is a great demolition hammer tool to chip out rotten concrete.
It is most effective to place a drainage pipe in the ditch at a depth of 12 to 18 inches and then fill the ditch with gravel.
Buried or underground roof drainage downspout defects clogging overflowing holes corrosion leaks that cause wet basements or crawl areas proper installation of buried downspout extensions proper installation of french drains seepage pits at flat sites gutter downspout defects cause wet basements crawl areas questions answers about installing maintaining repairing buried roof.
I usually dig a trench about 12 to 14 inches deep for downspout drain lines.
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.
Drain pipe slope maintaining a depth of 12 to 18 inches is best for drain pipes but the depth of the pipe may vary in order to maintain a downward slope which is critical for proper drain functioning.
Continue until you have completed the trench.
In many instances i would dig a trench only 16 inches deep.