Tried to clear out door 3” corrugated drain with box jetting machine, but had no success. Ended up retrieving tons of roots with my k50 sewer machine, roots were located 25 feet into the discharge line. Homeowner needs to contact a French drain company so they can repair the section of piping where the roots are located. Storm drains are still draining as they should with no issues. Emailed copy of invoice to homeowners email.