Where to locate septic line

[RRG]

How exact should the location of the line going out to the septic tank be in relation to the 1st. floor bathroom toilet?
Should it line up with the plumbing wall?

[Rich]

There's no requirement on how anything interior of the house has to line up with the exterior. It can take some bends here and there if need be.

[RRG]

Thanks Rich.

[mjpliv]

Avoid 90 degree bends on your horizontal runs.