Septic Saver multi-strain microbial additive from BioStim is designed to supercharge septic systems to prevent foul odors, slow drains, seep-hole blockages and excessive pumping. Regular use keeps the system free flowing by digesting fat, oil, grease, soaps and other organic household waste, prolonging the life of the system. It is safe for plumbing systems in homes, RVs, portable toilets and sewer lines, and contains no caustic or corrosive chemicals, free enzymes, emulsifiers or surfactants. It’s formulated to prevent grease from passing through to the leachfield, where it can resolidify and cause a septic field failure. 800/338-8812; www.biostim.com.