The City made a new tap and extended a 4" PVC lateral from the center of the street to my property line. Their main is about 3 or 4' deep. I only have to run my new 4" sewer line approximately 10 to 15' to connect to theirs.
My sewer pipe is about 12" deep coming from under the house. Do I use two 45's to turn down to tie onto their line? I am using the 1/4" per foot method for my fall.

Thanks for your help you guys are great!