Use EcoStrong’s Drain & Grease Trap Treatment Liquid when your drains are slowing down or starting to smell. This solution needs some flow to work, so it cannot be used on completely clogged drains or grease traps. Drain & Grease Trap Treatment Liquid is biologic solution that does not contain harsh chemicals. It eliminates fats, oils, and greases (F.O.Gs) and other buildup by using billions of beneficial bacteria. These good bacteria eat the F.O.Gs stuck to the walls of the pipes and in grease traps, turning them into water and CO₂.