AfterShock bioremediation restorative from Cape Cod Biochmical Co. is designed to help restore drainage to clogged and sluggish drainfields, cesspools and seepage pits to prevent backups and eliminate odors. It contains naturally occurring, USDA-approved bacteria that biologically digest the solid material that normally clogs soil absorption areas, as well as a bacteria-friendly, time-release oxidizer that accelerates the bacterial activity and helps to degrade the sulfides in the soil. According to the maker, it is effective in residential and commercial applications in conjunction with high-pressure waterjetting and soil fracturing equipment. It can be applied in one day, eliminating the need to keep the system exposed for repeated site visits. 800/343-8007; www.septiconline.com.