[Notanlines]

Larry, created in the 1980s by Charles Bruni, The Geo Method uses a combination of powdered Calgon (water softener), laundry detergent (soap/surfactant), plenty of water, and often bleach or chlorine (to attempt to control odor). Bruni created what he called The Geo Method as a homemade system for treating the interior of your holding tanks.

This is not exactly an approved solution throughout the RV industry. And keep in mind that your waste and paper is not in your tank long enough to break down using any chemicals.