@#16 ... Blocking the sewer of the "Nooner" likely just made the --- back up into the house. ...
[my asterisk]
It seems that way.
And, having to call the local Arc-O-Rooter service recently, well I will say I agree.
Fortunately, the house monitoring system I have flagged the unexpected appearance of water on the basement floor.
So, a minute or two after I flushed the toilet that morning, I know I had a problem to resolve. I got text messages and emails.
Long story short (too late for that?)
The Arc-O-Rooter tech told me that the camera showed tree roots 78 feet into my sewer line, and that he had cleared that blockage.
I do give major credit to that Arc-O-Rooter tech. Yeah, he could have just cleared the blockage, but his talking with me, taking the time to explain things was some I did not expect to occur.
OK, I have digressed, big time. Apologies.