I know this is too general of a question....but how are house pipes connected to the main sewer pipe.

I see it as one long sewer pipe with T's going into each home with each pitched accordingly...

I got back. See other thread.
What I find interesting is where some have more than others...
On mine, per the other thread, 2 houses down, nary to nil to overflow.

2 Blocks Over, a friend had no flood. To her right, her neighbor got some.
Across the street from her, it was up 5 feet !

Just trying to get a better grasp of how it's *laid out* so can plan accordingly for the next preventative measure...