Best Black Water Tank Cleaner

Peter | 05-01-2026

You will find our hand-picked selection of Best Black Water Tank Cleaner below. You have a wide variety of choices of brands such as Walex,Unique,DigNew available to you as a result of the fact that each one of them has a unique pricing, look, and feel. Continue reading for an in-depth analysis in our Best Black Water Tank Cleaner buying guide!

Our experts tested a variety of Best Black Water Tank Cleaner on the market. Right at the top of the list is Walex Best Black Water Tank Cleaner. Check out some more of our favorites below, and read some valuable insight from our experienced editors.

Editor's Choice
Unique Clean-It RV Black Tank Cleaner Liquid - Effectively Resets Dirty RV Black Tanks - Eliminates
Unique Clean-It RV Black Tank Cleaner Liquid - Effectively Resets Dirty RV Black Tanks - Eliminates
Premium Pick
Walex Commando Liquid Black Holding Tank and Sensor Cleaner for RV, Camper & Marine - Rapid
Walex Commando Liquid Black Holding Tank and Sensor Cleaner for RV, Camper & Marine - Rapid
Budget Pick
Unique RV Digest-It Ultra RV Toilet Treatment, 32 Uses, Super Concentrated, Eliminates Smells,
Unique RV Digest-It Ultra RV Toilet Treatment, 32 Uses, Super Concentrated, Eliminates Smells,

Top 10 Best Black Water Tank Cleaner

We researched and compared the top products in the Best Black Water Tank Cleaner category to provide you with these recommendations.

1. Walex Commando Liquid Black Holding Tank and Sensor Cleaner for RV, Camper & Marine - Rapid

  • CLEANS RV HOLDING TANK AND SENSORS Commando Liquid Black Holding Tank and Sensor Cleaner is the liquid version of our best-selling Commando pod. For those who prefer a liquid treatment versus a pod, Commando Liquid restores sensor function and lubricates valves and seals, ensuring your RV's black tank operates smoothly.
  • ELIMINATES WASTE BUILDUP This liquid RV tank cleaner eliminates waste and paper buildup from tank walls and sensors within 12-24 hours. For stubborn issues, Commando Liquid can be safely used for a week or longer.
  • ADVANCED ENZYME POWER Our super-concentrated liquid formula contains powerful natural enzymes that break down waste and paper, thoroughly cleaning your black tank.
  • EFFORTLESS MAINTENANCE Commando Liquid Black Holding Tank Cleaner is safe for septic systems. Regular use every 1-3 months helps maintain your black tank and sensors in optimal working condition.
  • MADE IN USA Walex has been a global leader in developing and manufacturing premium odor control and sanitation products since 1987.

2. Unique Clean-It RV Black Tank Cleaner Liquid - Effectively Resets Dirty RV Black Tanks - Eliminates

  • New and improved formula! Using Clean-It is like power-washing your black tank. Works in 48-72 hours, no driving required. Cleans more effectively than a black tank cleaning wand!
  • We took Unique Tank Cleaner, the strongest RV black tank cleaner on the market, and made it even stronger! Clean-It is powered by billions of enzymes and probiotics, and won't damage seals or valves.
  • Helps eliminate those persistent porta potty odors and prevent compacted tanks and clogged pipes. Cleans even the corners and crevices of your black tank.
  • Works on old and new problems. Breaks down solid waste, toilet tissue, and sludge in your RV or boat black tank. Digests all brands of household and RV toilet paper. Home and campground septic safe.
  • Helping you experience worry-free RVing is our top priority, so we're doing something extraordinary. Every purchase of Unique Camping + Marine products includes exclusive access to our Unique Cares program--expert assistance from our Colorado-based Certified RV Tech Team to help solve your wastewater issues.

3. DigNew Metal Rv Black Tank Cleaner Wand,64” Extended Range,360° Powerful Rotary Cleaning Wand,1/4

  • RV Black Tank WandWith standard 3/4" GHT(Garden Hose) thread connection, stainless steel tube and metal powerful nozzle, it is easy to clean the black water tank,and clean the sensor to get it back to work
  • All MetalRV toilet wand nozzle is made of stainless steel, brushed nickel, which is not easy to age in the hot and cold environment, durable and rust prevention, and longer service life
  • Metal Swivel AdapterMade of solid brass, 360 degrees free rotation, making it easier to clean around the black water tank
  • 28.54 Inch Stainless Steel PipeAdopts 2-stage design, threaded connection, not easy to fall off, easy to store. 3/4" GHT(Garden Hose) standard thread metal shut-off valve for easy to use to control water flow
  • Hassle-Free MaintenanceThe powerful spray from the power nozzle of this wand easily removes trash and debris, making the sewage system cleaner.Regular use of this cleaner wand helps maintain optimal tank conditions, reducing the need for frequent deep cleaning

4. Unique RV Digest-It+, Extra-Strength RV Toilet Treatment - Liquifies Waste and All Brands of Toilet

  • Faster and more effective waste and RV tissue digester. RV Digest-It+ RV black tank treatment breaks down waste and all brands of toilet paper, preventing pyramid plugs and making dumping easier.
  • Our strongest complete RV tank treatment, significantly stronger than RV Digest-It Classic. Breaks down clog-causing waste and eliminates porta potty smells and sewer odors in your tank.
  • Maintains working sensor probes. Stops black water tank sensor probes from misreading by liquifying waste before it builds up and clings to probes. Digests grease, oil, and food debris in gray tanks.
  • RV Digest-It Plus camper toilet treatment is designed to work with The Unique Method to ensure clog- and odor-free camping, no matter what your style is: hookups, dry camping, full-time, extreme heat.
  • Helping you experience worry-free RVing is our top priority, so we're doing something extraordinary. Every purchase of Unique Camping + Marine products includes exclusive access to our Unique Cares program--expert assistance from our Colorado-based Certified RV Tech Team to help solve your wastewater issues.

5. Unique Restore-It RV Sensor Cleaner Liquid - Cleans and Restores Misreading Sensor Probes by

  • Black tank sensor probe and level gauge cleaner for RV holding tanks. Cleans and restores misreading sensors. Typically works in 48-72 hours, no driving is necessary. Formerly Unique Sensor Cleaner.
  • Breaks down and dissolves waste and toilet paper build-up that is clinging to your sensor probes, allowing them to function properly again. Specifically designed for black water holding tanks.
  • Works on problems no matter how old or new they are--even in permanently parked RVs! Effectively reverses years of waste accumulation. Digests solid waste, toilet tissue, and residual sludge.
  • Contains the strongest, most effective bio-enzymatic cleaners available. One bottle contains more active ingredients than any other leading sensor cleaner. Won't damage or degrade seals or valves.
  • Helping you experience worry-free RVing is our top priority, so were doing something extraordinary. Every purchase of Unique Camping + Marine products includes exclusive access to our Unique Cares program--expert assistance from our Colorado-based Certified RV Tech Team to help solve your wastewater issues.

6. Unique RV Digest-It Ultra RV Toilet Treatment, 32 Uses, Super Concentrated, Eliminates Smells,

  • Faster and more effective waste and RV tissue digester. RV Digest-It+ Ultra-Concentrate RV black tank treatment breaks down waste and all brands of toilet paper, preventing pyramid plugs and making dumping easier.
  • The Power of Plus. Our strongest complete RV toilet treatment in a no-fuss bottle. The easy-measure 32 ultra-concentrated rv tank treatments are significantly stronger than RV Digest-It Classic. Breaks down clog-causing waste and eliminates porta potty smells and sewer stink in your tank.
  • Prevents sensor probe problems. Stops black water tank sensor probes from misreading by liquifying waste before it builds up and clings to probes. Digests grease, oil, and food debris in gray tanks.
  • RV Digest-It Ultra camper toilet treatment is designed to work with The Unique Method to ensure clog- and stench-free camping, no matter what your style is: hookups, dry camping, full-time, extreme heat.
  • Helping you experience worry-free RVing is our top priority, so we're doing something extraordinary. Every purchase of Unique Camping + Marine products includes exclusive access to our Unique Cares program--expert assistance from our Colorado-based Certified RV Tech Team to help solve your wastewater issues.

7. Unique Clear-It RV Black Tank Unclogger Liquid - Breaks Through Pyramid Plugs, Compacted Tanks, and

  • Unclogs black water tanks and systems in RVs, campers, motorhomes, fifth-wheels, and boats. All you need to do is add it to your tank and wait 48-72 hours. No driving necessary!
  • Clears all types of clogs including pyramid plugs, compacted waste and toilet tissue inside black tanks, and blocked plumbing lines. Won't damage or degrade seals or valves.
  • Solves old and new problems. Clear-It breaks down solid waste, including household or RV toilet paper, poop, and residual sludge - no matter how old it is.
  • Powered by the most advanced bio-enzymatic blend available. The strongest unclogger on the market. Contains higher concentrations of activated cleaners than all leading black tank uncloggers.
  • Helping you experience worry-free RVing is our top priority, so we're doing something extraordinary. Every purchase of Unique Camping + Marine products includes exclusive access to our Unique Cares program--expert assistance from our Colorado-based Certified RV Tech Team to help solve your wastewater issues.

8. Walex Commando RV Black Holding Tank & Sensor Cleaner - Eliminates Waste & Paper Buildup, Restores

  • CLEANS RV HOLDING TANK AND SENSORS - The RV black tank and sensor cleaner helps restore sensor function and lubricates valves and seals, ensuring your RV's black tank functions smoothly.
  • ELIMINATES WASTE BUILDUP - The RV tank cleaner eliminates waste and paper buildup from tank walls and sensors in 12 -24 hours. For stubborn issues, Commando can be safely used for a week or longer.
  • ADVANCED ENZYME POWER - Our super-concentrated formula contains powerful natural enzymes, breaking down waste and paper ensuring a thorough cleanse for your RV black holding tank.
  • EFFORTLESS MAINTENANCE - The RV holding tank cleaner is septic system safe. Continued use of Commando every 3 months will help keep your black tank and sensors in good working condition.
  • MADE IN USA - Walex has been a global leader in developing and manufacturing premium odor control and sanitation products since 1987.

9. Camco TST MAX RV Toilet Treatment Drop-INs - Control Unwanted Odors & Break Down Waste and Tissue -

  • Toilet Deodorizer With Reactive Odor-Eliminating Technology: Experience a powerful RV odor eliminator that stops RV black tank odors for up to 7 days. Just (1) toilet drop in treats camper toilets with up to a 40-gallon tank.
  • Superior Formulation, Unmatched Performance: Get exceptional results with TST MAX RV tank treatments. The advanced chemistry is safe for septic systems.
  • Powerful RV Black Tank Treatment: Eliminate clogs & odors in your camper/marine black water tank with TST MAX. This powerful solution breaks down waste & RV toilet paper, while also aiding in waste digestion for optimal sensor performance.
  • Multi-Purpose: This RV accessory is great for boating, full-time/occasional camping, boondocking, & portable camping toilets. Be sure to have this camper must-have with the rest of your camping supplies.
  • Made in the USA: Camcos TST RV toilet chemicals are proudly made in the USA & trusted by RVers and boaters for their holding tank treatment needs.
  • Refreshing Scent | Quantity: Enjoy a pleasant, long-lasting citrus scent as you're RVing without worrying about septic tank odors ruining your experience. Each bucket includes (30) Drop-INs.

10. Camco Rhino Blaster RV Tank Rinser with Backflow Preventer - RV Accessories for Toilet and Waste

  • RV Holding Tank Rinser: Camco's Rhino Blaster keeps your RV black tank, camper sewer hose, & RV tote tank clean and odor-free with a direct water blast. Regular tank rinsing helps prevent odors & clogs and ensures accurate sensor readings.
  • Backflow Prevention: Safeguard your water supply with the built-in vacuum breaker. Easily attach it between your faucet and camper water hose to avoid backflow, stopping fresh water contamination.
  • Clear Elbow for Visibility: The 45-degree clear elbow enables direct water flow for rinsing out residue in your RV waste tank. Its transparent material allows you to easily see when the water runs clear, indicating a thorough clean.
  • Secure & Simple Installation: Easily attach this RV camping must-have to your sewer system with 360 swivel fittings. Connect the four-prong bayonet fitting to your RV sewer outlet & the lug fitting to your black water hose for a secure attachment.
  • Durable Construction: Built to last, this waste water tank rinser is constructed with durable polycarbonate that is break-resistant and designed to withstand the elements for long-lasting performance. Nothing is tougher than a Rhino.

Peter

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