Thetford AquaMax Spring Showers Holding Tank TreatmentAquaMax Spring Showers by Thetford is holding tank treatment that utilizes advanced enzymes to breakdown residue and remove odors. The enzymes also speeds up waste breakdown to help prevent clogs and future residue buildup. The formula has bee ndesigned for RV, Marine, holding tank, and septic system safe while being campground/marina friendly. AquaMax is available in quart, gallon, and 8oz 6 pack options.Features: Available in quart (96635), Gallon (96637), and 8oz 6 Pack (96634); Biodegradable; Eliminates odor; Child-resistant bottle caps; Spring Showers scent; Campground & Marina friendly; Breaks down waste; Advanced enzyme formula; Bronopol/Formaldehyde free; Instructions: Use 8oz of AquaMax per 40gallon of tank space; Store below 100 F; Treat the tank before using or after emptying the tank.; RV/Marine Holding Tank Systems; Pour through the toilet opening; Flush water to add water to tank; Portable Toilets; Pour 4oz into holding tank through valve opening; Add enough water to cover the tank bottom.;