In a recent article titled "How to Troubleshoot Drainfields and Yards," we went over some of the most common diagnoses for drainfield problems, touching on some issues with distribution boxes and dropboxes. In this article, I'll cover some of the other ways you can troubleshoot a drainfield.
First, the area over and around the soil treatment area should be evaluated to determine the potential for extra water being added to the system through surface runoff from hard or impermeable surfaces. This includes roof runoff delivered through downspouts and from a driveway or paved paths.
If there is a basement drainage system served by
