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Boat Holding Tank Deodorizers

Marine Digest-It Holding Tank Treatment

Unique Camping + Marine

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  • Wave Goodbye To Odors and Backups

    Powered By the Most Advanced Bacteria & Enzyme Formula Available

    • Digests Solid Waste and Residual Sludge In Holding Tanks
    • Eliminates Tank, Toilet, and Sanitation Line Odors
    • Treats Both Black and Gray Tanks
    • Works In Salt Water
    • Cleans and Maintains Tank Sensors and Level Gauges
    • Digests All Brands of Toilet Paper
    • Formaldehyde Free
    • Non-Toxic | Eco-Friendly
    • Safe For Your Family and the Environment
    • 100% Satisfaction Guaranteed
  • Keep Your Marine Holding Tanks Clean and Clear

    There’s nothing like the true relaxation and recharging that comes from a day spent out on the water. But nothing can ruin that serenity quite like having to deal with holding tank odors or backups. Unique’s Marine Digest-It is specially designed to eat odor and backups caused by solid waste and residual sludge inside the entirety of your holding tank system, lines and all. Marine Digest-It works with salt water and can be used in both black and gray water tanks. Marine Digest-It not only eliminates backups and odors but also cleans and maintains tank sensors as well as level gauges. Marine Digest-It also digests all brands of toilet paper. It is formaldehyde free, eco-friendly, and totally safe for you and the environment. Best of all, Marine Digest-It is backed by a 100% money-back guarantee.

    Boat Owners Across the US Already Put Their Trust In Marine Digest-It

    Marine Digest-It uses a highly effective blend of bacteria and enzymes that go to work quickly, ensuring that your marine holding tanks remain clog and odor free. Bacteria needs a food source to survive, and the waste in your holding tanks and lines is the perfect food source for the bacteria. Once the bacteria encounters a food source (the waste and odors in your holding tank and lines), it becomes active and begins to eat. As the bacteria eat, they produce enzymes. These enzymes help to break the waste down into more easily digestible portions for the bacteria so they can completely eat and digest the waste, leaving behind nothing but carbon dioxide and water. The bacteria in Marine Digest-It is also specially formulated to force out the bad, odor-creating bacteria (anaerobic) and replace it with good bacteria (aerobic) so foul odors are eliminated at their source without using any dangerous chemicals, masking agents, or strong fragrances.

    Maintain Both Black and Gray Tanks, Even In Salt Water

    Many products will require that you use a different treatment for each tank, but Marine Digest-It makes easy work of keeping both black and gray water tanks alike free and clear from foul odors of backups.

    Best of all, Marine Digest-It will also work just as effectively in salt water as it does in fresh or brine water. That kind of versatility is what every boat owner needs.

  • Ingredients

    Ingredient CAS Purpose
    Water 7732-18-5
    Bacillus Bacterial/Enzyme Blend #44 Withheld Break Down Organic Waste
    Propylene Glycol 57-55-6 Preserves Enzymes
    Glycerine 56-81-5 Preserves Enzymes
    Readily Biodegradable Surfactant Withheld Holds Formula in Solution, Cleans
    Neutroleum Fragrance HQ365 By Intarome Mixture Pleasant Fragrance

    Looking For Safety Information?

    View or download an SDS here.

    Universal Product Identifiers

    Marine Digest-It 16 Treatment 32 oz.

    SKU 441
    UPC 736683000074
    Size 32 oz.

    Need Help?

    Send us an email and we will get you taken care of quickly

    Email us here: support@uniquemm.com

All Unique Camping + Marine products are proudly made inside the USA. Clean and maintain RV wastewater systems with American Made solutions. 

Made In The USA

We are proud to say that every ingredient we use is sourced and made here in the U.S.A. We proudly work with other quality American businesses to ensure that the products you get today are helping to build a better economic future for this country.


All of our products are guaranteed to work or your money back. We stand 100% behind our products. 

Our Guarantee

Our products are made with non-toxic formulas that are safe for people, pets, and the environment. Everything we do comes with unparalleled support from the wastewater experts at Unique Camping + Marine, located right here in the USA. If for some reason you don’t love the results, we’ll refund your money without hassle!


We make safe products. All of Unique Camping + Marine products are made with both the customer and the environment in mind. We are proud to say that our products are both safe for you and your family, but also the environment. 

Safe Products

Many other products claim to be organic, safe, or natural, but a closer look at their label reveals that these products contain dangerous ingredients that can cause serious harm to you and the environment. Nearly every one of our products is 100% safe for you and the earth. And if they aren't, we make positive you are aware.


Unique Camping + Marine products comply with state regulations and are safe for septic systems 

State Compliant

Unique Camping + Marine products contain no caustic or dangerous chemicals, including formaldehyde or bronopol, and conforms to all state and national laws designed to protect groundwater and the environment.