Disconnect the gutter downspout from where it connects to the drain pipe.
Bypass my in ground gutter drain.
Since my in ground pipe ran right past the garage i had the garage downspout dump in as well.
You can also hire a professional to tap into an underground drainage system if you have one installed on your.
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.
Another quick tip when installing the underground gutter extension tubing is to use lots of perforated pipe once you re away from the house so the water can drain as it moves down the tube.
The water simply drains into the ground at the end of the underground downspouts.
Turn on a garden hose to its most powerful setting and run water through the drain pipe.
Check to see if water and debris come out the other end of the pipe.
Place the end of a plumber s auger also known as a snake into the underground.
Pull the underground drain which is often a black corrugated plastic pipe away from the end of the downspout.