Sani Sticks As Seen on TV introduces these concentrated cleaning and sanitation drain sticks! Easy to use, all you have to do is drop the enzyme drain cleaner in the drain once a month to prevent backups, clogs, and nasty odors before they start. Keep your drain pipes clear and odor-free all year long with these pine scent drain sticks. Use this drain cleaner that is perfect for the kitchen, vanity, bathtub, and utility o mop sinks. The drain opener is also safe for septic tanks. One pack includes enough Sani Sticks to treat two smelly drains for one year.