The #1 brand of septic system treaent in Canada*, SeptoBac offers these convenient, dissolvable, ECOLOGO certified septic-pacs. The concentrated, pre-measured pacs offer continuous treaent as billions of specialized bacteria are introduced monthly to help accelerate digestion of both organic and difficult-to-degrade septic waste. SeptoBac also contains microbial nutrients that stimulate bacterial growth and help maintain a healthy septic system. SeptoBac is safe for all septic systems and holding tanks including boats and RVs. Other uses include composts, cesspools, chemical toilets and outside toilets.