Refresh your RV's septic system with the Valterra V23002 Pure Power Blue Waste Digester and Odor Eliminator. This waste digestion formulation features proprietary BioBlastPlus odor control technology that performs without fail in all temperature conditions. Use only 2 ounce per 40 gallons in both black and gray tanks for effective cleaning. This high powered mixture of bacteria and enzymes is sure to keep your holding tanks clean and odor free. Put the power of this revolutionary, chemical-free formula to work for you and see what a difference it makes. This CA compliant solution is accepted at all campgrounds, RV parks, and RV/marine dump stations. This waste digestion formula is safe to use in all septic systems and will not harm children or pets for worry-free use.