The success of the WTF plumbing adventure lasted about four months. Over the course of the last week the bathroom plumbing started backing up again.
The steel tape auger hit the same WTF clump of sediment between 25 and 30 feet. I roughed it up and flushed it out and the pipes were flowing fine as last time.
I was determined to clear it better than last time, so I took a break and went at it again. The auger cleared through to between 55 to 60 feet and hit another WTF pile of sediment. I just kept jabbing back and forth with the auger and a constant flush of water, hacking away at it.
I’ll probably spend another day hacking away at it. The task demands WTF persistence.