Jamie arrived at the lamb for mainline back up in to bathroom. Upon arrival Mr. Lamb showed Jamie that the toilet and tub were backed up and when any water was ran it would back up into tub, Mr. Lamb also showed Jamie where the out side clean out is and when cap was removed there was no standing water. Jamie determined that the clog was under house Jamie provided the Lambs with multiple options they went with the good option. After Jamie ran 100 Spartan machine backwards through outside clean approximately 10 feet water began to flow Jamie stopped removed cable and began to test drain Jamie flushed toilet multiple times and filled tub up with hot water and began to drain Jamie went out to clean out to ensure line was open but didn’t see any water flowing through clean out, that’s when Jamie noticed the steam for the hot water was raising for crawl space Jamie opened crawl space and noticed that the small section of cast iron pipe is broken. Jamie contacted dispatch to inform them that