Waste Line that changes direction

[Jacques Sheelaque]

I have built a new cottage and I am looking to connect it to the old septic tank.

In order to do this it has to make a 90° turn from where it exits the house. I understand two 45° turns are better. I would rather not excavate the tank to relocate it to make a straight run.

1. is this common
2. is there anything I should consider if doing this.
3. what is the issue of exceeding a maximum slope i.e. greater than 1/4 over 12"

Thanks

 

[frodo]

 

[Jacques Sheelaque]

Thank You Frodo

 

[Diehard]

You may find this article interesting regarding your 3rd question.

https://inspectapedia.com/septic/Steep_Site_Septic_Sewer_Piping.php