Unique RV Digest-It Plus Liquid Tank Treatment — 1 Gallon Enzyme Formula for Black & Gray Tanks

Unique RV Digest-It Plus is an enzyme-based liquid treatment formulated to digest waste and toilet paper, reduce buildup, and help keep RV black and gray tanks flowing smoothly.

Maintaining an RV holding tank is one of the least fun parts of camping, but the right chemistry makes it easier. Unique RV Digest-It Plus uses targeted enzymes to break down organic waste, toilet paper, grease and food particles so deposits don’t cling to tank walls or probes. That lowers odor potential, supports more accurate sensor readings and makes dumps faster and cleaner, whether you’re hooked up or boondocking.

How does this treatment reduce odors and buildup in my black tank?

Digest-It Plus supplies enzymes that accelerate the natural breakdown of solids and toilet paper, preventing the sticky layers that trap smells. Instead of sitting as clumps on walls or around the outlet, waste is liquefied and suspended so it flushes out during dump cycles.

• Enzyme action targets cellulose and organic waste.
• Helps prevent pyramid plugs and stubborn clogs.
• Reduces residual solids that create long-term odors.

Will it help my tank sensors read correctly?

Yes. When waste and paper are broken down before they can coat sensor probes or cling to walls, the sensors encounter less false resistance and buildup. That improves level accuracy and reduces the nuisance of phantom-full readings.

• Liquefies material that commonly sticks to probes.
• Minimizes false-high sensor readings from residue.
• Supports more reliable monitoring between cleanouts.

Can I use this in both black and gray tanks?

Digest-It Plus is designed for use in both holding tanks: it digests toilet waste in black tanks and helps break down grease, oils and food debris in gray tanks. Using a single product simplifies maintenance and helps control odors across your RV wastewater system.

• Formulated to treat both dark-water and gray-water issues.
• Targets grease and food particles in sinks and showers.
• Useful for mixed-use camping—hookups or dry camping.

How should I use this bottle for regular tank maintenance?

Follow your tank size and manufacturer recommendations, but general practice is to add the recommended dose after flushing or at the end of a camping day to let enzymes work overnight. For ongoing maintenance, use at every few dump cycles or more often in hot climates and heavy use situations.

• Add after a flush or with residual water present for best contact.
• Dosage varies by tank volume—consult label instructions.
• Use regularly to prevent buildup rather than only for problem cleanups.

Who is this for: Unique RV Digest-It Plus is intended for RVers, van lifers and boat owners who want a reliable, enzyme-based solution to manage black and gray tank waste. It suits weekend campers, long-term travelers, and anyone seeking easier dumps, fewer sensor headaches, and a cleaner holding-tank system without harsh chemicals.

Features:

• BREAKS DOWN WASTE AND RV TOILET PAPER; Enzyme-based RV black tank treatment helps digest waste and all brands of RV toilet paper; reduces buildup that can lead to pyramid plugs and helps keep tank dumping smooth and manageable
• FAST ENZYME DIGESTION FOR ROUTINE RV TANK MAINTENANCE: Helps break down waste that contributes to tank odors while supporting cleaner holding tanks; when you're ready to upgrade, RV Digest-It Ultra is the next generation of the Digest-It lineup, offering our fastest digestion and most concentrated formula
• SUPPORTS ACCURATE TANK SENSORS; Liquifies waste before it can cling to tank walls and sensor probes; helps prevent misread sensors and buildup that interferes with normal tank monitoring
• WORKS IN BLACK AND GRAY TANKS; Digests grease, oils, and food debris that collect in gray water tanks while helping control odors in black tanks; supports overall RV wastewater system maintenance
• WORKS WITH THE UNIQUE METHOD; Designed to complement the Unique Method for consistent tank care whether you camp with hookups, dry camp, travel full-time, or camp in hot conditions

Ingredients

Proprietary Bio-Enzymatic Blend