Camco RV Toilet Treatment TST MAX 1‑Gallon — Concentrated Citrus Formula, Septic‑Safe Odor Control

Camco TST MAX Citrus Toilet Treatment is a concentrated, septic-safe liquid that breaks down waste and toilet paper while controlling black-tank odors for up to seven days per dose.

Designed for RVs, boats and portable toilets, this 1-gallon jug of TST MAX delivers a highly concentrated formula that treats large holding tanks with very small doses. The product uses reactive odor-eliminating technology to neutralize smells and liquefy solids so sensors and drains work more reliably. Made in the USA and biodegradable, the treatment is intended for use in residential septic-compatible systems commonly found in RV and marine applications.

How much product do I use and how often should I add it?

One 2-ounce dose of TST MAX treats up to a 40-gallon black tank and keeps odors controlled for as long as seven days under normal use. For smaller tanks or lighter use, reduce the dose proportionally; for heavy use or higher temperatures, dosing may need to be more frequent.

• Standard dose: 2 oz per up to 40 gallons.
• Frequency: typically once every 7 days under average use.
• Adjust for conditions: increase dose for heavy use or warm climates.
• Convenience: one 1-gallon jug contains roughly 64 doses.

Will this harm my septic system or sensors?

TST MAX is formulated to be biodegradable and septic safe, minimizing the risk to holding tank biology and downstream septic systems when used as directed. Its liquefying action helps prevent buildup that can interfere with level sensors and valves.

• Biodegradable formula reduces environmental impact.
• Safe for most RV and marine septic setups when dosed correctly.
• Helps maintain sensor accuracy by breaking down solids.
• Avoid overdosing to preserve tank bacteria balance.

How does it handle odor control and scent?

Instead of simply masking smells, the product employs reactive odor-eliminating chemistry to neutralize odor molecules and minimize lingering sewer smells. A light citrus fragrance leaves a fresh scent without overpowering the living space.

• Reactive technology neutralizes odors, not just cover them up.
• Lasting citrus scent provides a cleaner camper experience.
• One dose can control odors up to seven days under normal conditions.
• Fragrance level chosen to be pleasant yet not overpowering.

Is this product multipurpose for different outdoor settings?

TST MAX is versatile for weekend campers, full-time RVers, boat owners and portable toilet users. Its concentrated nature makes it practical for long trips and boondocking where carrying capacity and supply longevity matter.

• Works in RV and marine black tanks and portable toilets.
• Compact dosing stretches supply for extended trips.
• Suitable for boondocking, cruising, or seasonal storage maintenance.
• Made in the USA—trusted by recreational vehicle and boating communities.

Who is this for? Camco TST MAX 1-gallon toilet treatment is aimed at RV and boat owners who want a concentrated, septic-safe solution to control black-tank odors and improve waste breakdown. It’s ideal for people who value longevity and convenience—those taking long trips, boondocking without frequent dump facilities, or managing multi-person households on the road. If you need a reliable, biodegradable treatment that reduces buildup, improves sensor performance, and leaves a pleasant citrus scent, this product fits the bill.

Ingredients

surfactants