Need help!! My 2" drain line for my washing machine (not the flexible hose, but the cast iron pipe drain) is clogged, and clogged GOOD! I bought a 25' power auger, and got lots of roots. Had a plumber come out, and he used a much better auger, and also got lots of roots, but to no avail. Left the auger line in the pipe, used a metal detector to find the pipe. Pipe does not connect to main house drain. Started digging, and cannot locate pipe. Any suggestions would very appreciated!!! Thanks in advance!!!