Bio-Rem E-D is used to:
It is used in grease traps, commercial and industrial kitchens, overloaded plumbing and waste lines, sluggish sewer and leach lines, food, meat and poultry packing plants and municipal sewage treatment plants.
It can safely be used in:

RootX makes it easy to kill tree roots in residential sewer pipe lines, storm pipes, roots in septic tanks, and roots in septic leach field lines.
Aqua Safe® advanced aerobic treatment units are designed to treat wastewater from residential homes, multiple homes, or light commercial applications.