I'm dealing with a clog in my underground gutter drainage system, which is causing water to back up near the building. The system consists of 4-inch black corrugated tubing, and I'm hesitant to use an auger since it might damage the tubing. The property has an accessory four-car garage with gutter downspouts at each corner and a central drainage trough, which I think are all connected and drain into a farm drain that runs to the street. The issue seems to be where the geothermal AC dumps into this system, specifically on the back side of the building. I'm looking for effective ways to clear the blockage without risking damage. Any advice?
2 Answers
You could try connecting a garden hose to see if the pressure can help push through the blockage. If tree roots or bushes are causing issues, maybe it's time to rethink the whole setup and install regular downspouts that direct water further from the building.
I recommend using a Jet Snake sewer jetter. It connects to your pressure washer and feeds into the pipe. I was a bit skeptical, but they really work wonders—much better than a traditional mechanical snake!
That Jet Snake does look effective! I appreciate the recommendation. I've seen off-brand sewer jetters that are cheaper with decent reviews. Should I take a chance on those or stick with the Jet Snake?

Totally agree! It's probably a good idea to make this a regular maintenance task. And it's great that you realize a mechanical snake might not be the way to go.