A professional will have tools that can be inserted into downspouts and underground drains to remove any clogging or items that are blocking your water flow.
How to fix clogged gutter drain.
If you can t reach it simply disassemble the downspout and remove the clog.
How to unclog underground rain gutter drain piping step 1.
Tap the side of the downspout.
Disconnect the gutter downspout from where it connects to the drain pipe.
If the clog occurs at an elbow or seam and you can reach it from above.
Follow these suggestions to unclog your downspout starting with the easiest options first.
Many times this end of the pipe has a leaf guard or metal screen.
Reposition or repair the guttersupports.
Then climb back up and try rinsing the downspout with your garden hose again.
Remove the guard at the other end of.
If a professional is unable to remove the clogging you may need to have your gutter system replaced entirely.