This article from the TCEQ explains why it is important to keep FOG out of the sewer system:
Keeping Fats, Oils, and Grease out of the Sewer System
This second article explains What You Can Do to Reduce FOG:
Reducing Fats, Oils, and Grease in Your Home or Apartment
Do NOT Flush Wipes, or as Patty Potty says, “No Wipes in the Pipes!” #NOWIPES
Learn more about Patty Potty: http://www.pattypotty.com