Septic Saver from Biostim is a multi-strain microbial additive that supercharges septic systems to prevent foul odors, slow drains, seep-hole blockages and excessive septic tank pumping, according to the maker. Regular use can help keep systems free flowing by digesting fats, oil, grease, soaps and other organic household waste, and prolong the life of the system. It is safe for plumbing systems in homes, RVs, portable toilets and sewer lines. It contains no caustic or corrosive chemicals, free enzymes, emulsifiers or surfactants and does not cause grease to pass through to the leachfield where it can re-solidify and cause a septic field failure. To treat, pour it into the toilet and flush. 800/338-8812; www.biostim.com.