Very natural non-toxic formula with no harsh chemicals to harm the environment or pipes. Keeps septic system balanced digesting waste and removal of sludge deposits in leach lines and field. One treatment lasts 3 months — just simply flush down the toilet. This is the second home where I have a septic system and have learned the hard way not to let grease down your kitchen drain. Also coffee grounds and feminine products are a no-no. In combination with this care, this product is a good preventative.
LCpalmbay via Homedepot.com Palm Bay, FL November 13, 2015