Check to see if water and debris come out the other end of the pipe.
How to unclog inground gutters.
Expose the bottom downspout opening divert the flow away from any landscape drain and then use a garden trowel to reach up into the opening and remove any clogged leaves and debris that could have accumulated there.
Tap the side of the downspout.
Tips on how to unclog a gutter downspout.
Then climb back up and try rinsing the downspout with your garden hose again.
Start by cleaning the bottom downspout opening.
Many homes have gutters and downspouts that are unprotected.
Pull the underground drain which is often a black corrugated plastic pipe away from the end of the downspout.
The downspout is the pipe that runs down the building from the gutter to the underground downpipe.
You have to remove the spout to access the downpipe.
Remove all the accumulated debris in the gutter.
Walk down the ladder one rung at a time gently knocking on the side of the downspout as you go.
If the cage is in good shape firmly re seat it into the downspout hole.
Remove the guard at the other end of the drain pipe if there is one.
If the clog occurs at the downspout cage.
Remove and clean it.
Remove the screws at the top of the downspout connecting it to the gutter.
Disconnect the gutter downspout from where it connects to the drain pipe.
Turn on a garden hose to its most powerful setting and run water through the drain pipe.
Either of the above scenarios however years of drainage has carried debris but the system is clogged and water can no longer enter.
Follow these suggestions to unclog your downspout starting with the easiest options first.
These unprotected gutters allow debris small and large to enter the gutter travel down the downspout and into the in ground drainage.