DOWN JOHN Septic Treatment is a revolutionary 3-part septic system treatment to revive struggling septic systems, increase biological activity and restore the overall balance inside your septic tank.CARBON: The high surface area activated carbon that is flushed on day 1 adsorbs chemicals that are toxic to bacteria like chlorine bleach, detergents, toilet bowl cleaners, soaps, antibiotics etc., effectively removing them from the contents in your septic system. This provides a safe and stable matrix into which the live bacteria blend is safely introduced on day 2. One pack of DOWN JOHN will treat a standard anaerobic 1000 gallon septic tank for 12 months.BACTERIA: The live bacteria will grow and multiply on the carbon surface, exponentially increasing in number for 12 months until maximum digestion efficiency is reached. DOWN JOHN bacteria break down the sludge and waste solids in your septic tank and pipes, decreasing build up and odor within your septic system and restoring tank to empty design capacity.ENZYMES: The white enzymatic powder that is flushed on day 3 specifically targets and dissolves fats, oils and any grease cap present.One pack of DOWN JOHN will treat a standard anaerobic 1000 gallon septic tank for 12 months. Larger tanks will require more packs, one pack per 1000 gallons or part thereof.