Drano Advanced Septic Tank Treatment is an enzymatic solution that easily and conveniently prevents septic backup. The concentrated formula works with septic enzymes to break down solid waste, paper, oil, grease and protein to help prevent backups along with regular pumping. Drano's no-mess dissolvable septic care pouches work safely in all septic tanks and pipes so you only need to drop them in your toilet and flush. Each package contains three pouches for three months of septic maintenance. Flush one dissolvable septic treatment pouch every 30 days as directed for best results.

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Drano Advanced Septic Treatment, Monthly Flushable Septic Tank Enzyme Care, 4.5 oz, 3 Count