Marine Digest-It

Marine Digest-It Holding Tank Treatment. Break down waste and eliminate galley and head odors. Unique Camping + Marine
Marine Digest-It Holding Tank Treatment. Break down waste and eliminate galley and head odors. Unique Camping + Marine

Eliminates odors and prevents backups in holding tanks

  • 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
  • Formulated With Trust
  • 100% Satisfaction Guaranteed

Learn More About Marine Digest-It


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 and safe for septic systems. 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 need a food source to survive, and the waste inside your holding tanks and lines is the perfect food source for the bacteria. Once the bacteria encounter a food source (the waste and odors in your holding tank and lines), they become active and begin 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 are also specially formulated to force out the bad, odor-creating bacteria (anaerobic) and replace them 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.

What Customers Are Saying About Marine Digest-It

After two years of the corrosive, stinky, awful Blue Stuff That Shall Remain Nameless (I'm looking at you, West Marine) we were ready for a change-- who wants a stateroom that smells alternately like a hospital and... well, you know. UNIQUE IS AMAZING! We've used it for a grand total of two weeks between pump outs and there is NO SMELL in the head, near the tank, ANYWHERE. I let it sit in the head before flushing it through the first time and even the macerator seems to be working more smoothly. I can't recommend this product enough-- stop stinking up your life, stop putting harmful chemicals into your boat/home/environment, and START USING UNIQUE! :)

Mar O.

Marine Digest-It works great no more smell and it appears that is is breaking up the solids in the tank for a cleaner tank.

Bruce M.

I just started using "Marine Digest-It." I was having a party on my boat and put out special paper towels in the head for people to dry their hands. Unfortunately my friends are not familiar with a marine holding tank and flushed the towels. UGH! I was really concerned that this was going to be a problem. I used "Marine Digest-It" and had no problems at pump out time. I love the fact that the products are natural!

Philip K.

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