A full gallon of Camco's proven calcium nitrate black tank treatment. TST Fresh Scent eliminates holding tank odors at the source, accelerates waste and tissue breakdown to prevent clogs, and cleans level sensors so your tank gauge reads accurately -- all without formaldehyde or harsh chemical smells.
RV holding tank odors aren't just unpleasant -- they signal that bad bacteria and hydrogen sulfide gas are winning inside your tank. Camco TST Fresh Scent works differently than older formaldehyde-based treatments: the calcium nitrate formula introduces oxygen into the tank environment, allowing beneficial aerobic bacteria to outcompete the odor-producing anaerobic bacteria. The result is genuine odor control that doesn't just mask smells with fragrance.
The 1-gallon jug gives you a serious supply for extended trips, full-time RV living, or treating multiple units. At 4 oz per 40-gallon tank per week, one gallon covers roughly 32 standard tank treatments -- that's most of a camping season from a single purchase.
Calcium nitrate creates an oxygen-rich environment that suppresses odor-causing anaerobic bacteria -- stops smells at the source, not just at the nose.
Accelerates decomposition of waste and RV-grade tissue to reduce the risk of clogs and pyramid plugs during and between dump cycles.
Lubricates and cleans holding tank level sensors to restore accurate readings -- critical for knowing when it's actually time to dump.
Effective across a wide temperature range for year-round use in any climate, with guidance for high-heat situations above 85 deg F.
Getting the dose right means better performance and no wasted product. Here are the recommended amounts straight from the label: