Our Favorite Picks:
20 Best Black Tank Cleaner Reviews:
Bestseller No. 1 
Walex Commando RV Black Holding Tank and Sensor Cleaner Drop-Ins, Ocean Mist Scent, 4-Pack (1 Year Supply)
- Restores Sensor Function
- Removes Waste and Paper from the Tank Walls
- Cleans Entire Tank in 12 to 24 hours
- Advanced Super-Concentrated Enzyme Formula
- Easy to Use Dissolvable Packet
Bestseller No. 2 
Unique Tank Cleaner Liquid for RV and Boat Black Holding Tanks 32 oz. - Unclogs RV Holding Tanks, Breaks Through Pyramid Plugs - 41H-1
- UNCLOGS BLACK TANKS in RVs and boats. Typically unclogs tanks in 12-72 hours. No driving necessary.
- STRONGEST & MOST EFFECTIVE CLEANER available today. Powered by the most advanced bio-enzymatic blend available. Contains higher concentrations of activated cleaners than all leading tank cleaners.
- UNCLOGS ALL TYPES OF CLOGS including pyramid plugs, compacted waste inside black tanks, and blocked plumbing lines.
- BREAKS DOWN SOLID WASTE, including toilet paper, poop, and residual sludge - no matter how old it is.
- SOLVES OLD & NEW PROBLEMS. Can be used for routine maintenance and deep cleaning. Proudly made in the USA.
SaleBestseller No. 3 
CARAVAN RV Sensor and Tank CLEANER - Fix sensors, clear toilet and tank clogs, enzyme formula, RV & marine, black tanks, bio-enzymatic plumbing solution
- POWERFUL: 95% successful clearing stuck tank gauges and clogs
- CONVENIENT: Simply shake, pour, flush and let soak. OK to travel and use toilet while soaking. Agitation (travel), rinsing and longer soak period, while not required will increase cleaning success
- FAST: Enzymes will immediately begin multiplying. Enzymes break down more complex molecules into something easily digested by the activated cleaners, completely eliminating sewer odor, sludge, blockages, human waste and all brands of household toilet paper
- MOST TANKS CLEAR OVERNIGHT, but older or poorly maintained tanks with heavy buildup will take longer
SaleBestseller No. 4 
G-Sunny All Metal RV Black Tank Cleaner Wand with Shut-Off Valve, Straight Swivel Stick for RV Toilet, Powerful Rotary Cleaning Capability for Cleaning Deposits (Straight Swivel Black Tank Wand)
- RV Straight Swivel stik: With a standard 3/4" garden hose connection, stainless steel tube, and round metal swivel head, it's easy to clean black tanks, remove odors, and clean sensors so they're back to work!
- 【All Metal】The RV tank wand is made of stainless steel, brushed nickel, no rust, strong and durable!
- 【Metal rotating head】 Made of stainless steel, the round appearance effectively avoids contact with the side wall or bottom wall to stop the rotation. Threaded connection, don't worry about falling off.
- 【31.5 inch stainless steel tube】Adopt 2-section design, threaded connection, safe and reliable,Not easy to fall off, easy to use, easy to store. 3/4 inch garden hose metal shut-off valve, ceramic valve core, Turn smoothly, control the amount of water at will.
- This RV toilet swivel wand gives your RV toilet the deep clean it needs and is an RV must-have!
Bestseller No. 5 
Walex Bio-Pak RV Black Holding Tank Deodorizer and Digester, Natural Enzyme Formula, Tropical Breeze 10-Pack
- No need for special toilet paper
- Deodorizes and breaks down waste and paper
- Pre-packaged portion control - no measuring or pouring
- Non-staining color
- and septic tank safe
Bestseller No. 6 
Unique Sensor Cleaner Liquid for RV and Boat Black Water Holding Tanks 32 oz. - 41J-1
- CLEANS & RESTORES BLACK TANK SENSORS in RV and boat holding tanks. Normally works in 12-72 hours. No driving necessary.
- BREAKS DOWN & DISSOLVES waste that is clinging to your sensor probes, allowing them to function properly again.
- WORKS ON OLD & NEW PROBLEMS. Reverses years of waste accumulation. Digests solid waste, toilet paper, and residual sludge.
- STRONGER & MORE POWERFUL. Powered by the most effective activated bio-enzymatic cleaners available. One bottle contains more active ingredients than any other leading sensor cleaner.
- TRUSTED & EFFECTIVE. Wonâ€t damage septic systems. Proudly made in the USA. Unique Sensor Cleaner is simply the strongest, most effective sensor cleaner available.
Bestseller No. 7 
BRODYS - RV and Marine Tank Cleaner Liquid for Black Water Holding Tanks ( Fix your sensors, Clear clogs and toilet back ups, Enzyme formula, break through pyramid plugs) 32oz
- Cleans Black Tanks: Brodys Tank Cleaner is a must have for RV and boat holding tanks. Our solution will clean and break down all clogs such as pyramid plugs, compacted waste, and plumbing lines that are blocked.
- Heavy Duty : Our professional strength Brodys Tank Cleaner solution will successfully clean and remove everything causing your issues. Fixes stuck tank gauges and clogs and will break down all solid waste such as toilet paper, sludge and human waste.
- Easy to Use: With easy to use instructions right on the bottle, cleaning your Tank in your RV or Marine is a quick job. Driving is not needed, but can help speed up the cleaning process. Can be used as a routine maintenance or deep cleaning item.
- Bio Enzyme Formula: Our Heavy duty Bio Enzyme formula is an eco friendly way to keep your Tank clean without the use of harsh chemicals and cleaning solutions. All Natural enzymes break down waste that is affecting your Tank and Sensors such as human waste and all brands of toilet paper.
- Made in the USA: Our products are proudly made in the United States of America, and undergo rigorous testing to ensure quality and efficiency. Proven to break down and properly clean your black water tanks for boats and RV.
SaleBestseller No. 8 
Camco TST MAX RV Toilet Treatment Drop-INs | Control Unwanted Odors and Break Down Waste and Tissue | Septic Tank Safe | Lemon Scent | 30-pack (41577) , black
- Essential for RV Holding Tanks: Eliminates odors and helps break down waste in the RV holding tank
- Ultra-Concentrated Formula: Just (1) Drop-IN works with up to a 40-gallon tank
- RV and Marine Approved: Does not contain the toxic, formaldehyde-releasing ingredient bronopol; Safe for all septic tanks
- Great Scent: Lemon
- Quantity: (30) Drop-INs/bucket
Bestseller No. 9 
Unique RV Toilet Bowl Cleaner and Black Holding Tank Enhancer Liquid, Squirt-Top Dispenser, Cleans All Toilet Types (24 oz.) 41F-1az
- Cleans RV toilet bowls. Specifically designed for RV and marine toilets. Cleans your toilet bowl without compromising the break-down process in your tank. Boosts odor elimination and waste digestion inside holding tank.
- Removed tough stains, toilet bowl rings and urine smells from plastic, ceramic, and porcelain toilet bowls. Won't damage seals or valves. Helps lubricate toilet seals.
- Most popular RV toilet cleaner in the USA. Used by more RVers than any other toilet cleaner.
- Powerful and effective. Thick formula clings to your toilet bowl while billions of activated bio-enzymatic cleaners target tough stains and odors. Promotes waste breakdown in home and campground septic systems.
- Trusted for years. Contains no bleach and releases no caustic fumes, so you can feel confident using it around your family and pets. Complies with all state dumping laws. No overpowering fragrances. No hidden chemical ingredients. No worries! Proudly made in the USA.
Bestseller No. 10 
Unique Marine Digest-It Boat Black Water Holding Tank Deodorizer 16 Liquid Treatments, 32 oz. - 441-1… (32, 3)
- DIGESTS SOLID WASTE INSIDE TANKS. Liquifies sewage, all brands of toilet paper and residual sludge from years of build-up in black, gray and galley tanks for easier, more thorough pump outs.
- ELIMINATES FOUL TANK ODORS at their source without masking with overpowering fragrances. Powerful bio-enzymatic cleaners work to eradicate odors.
- HELPS PREVENT SENSOR MALFUNCTION. Dissolves paper and solid waste before it can cling to tank sensors and level gauges, preventing misreads.
- STRONGEST ALL-AROUND TREATMENT. Breaks down waste AND eliminates odors in holding tanks. Proprietary formula contains billions of activated bio-enzymatic cleaners in each treatment. Works in salt water systems!
- TRUSTED & EFFECTIVE FORMULA. Get maximum results from a treatment that you can trust around your family and pets. No overpowering fragrances. No hidden chemical ingredients. No worries! Contains no formaldehyde. Proudly made in the USA.
Bestseller No. 12 
Black Diamond Stoneworks GET SERIOUS RV,Boat,Camper Chemical Toilet Holding Tank Treatment&Deodorizer.Works Faster Than Tablets or Packs in Grey&Black Water. Concentrated with Stress Relief Fragrance
- 💎 AGGRESSIVELY DESTROYS ODORS rather than simply masking them. No more worries about bad odors just enjoy our pleasant fragrance! Our formula stays active and offers excellent residual benefits.
- 💎 AGGRESSIVELY DESTROYS ODORS rather than simply masking them. No more worries about bad odors just enjoy our pleasant fragrance! Our formula stays active and offers excellent residual benefits.
- 💎 LIQUID CULTURES WORK FASTER. Our GET SERIOUS RV BOAT TOILET TREATMENT is specifically formulated to help break down waste and eliminate odors from your holding tank. It’s the easiest way to keep your camper, boat, RV porta-potty bathroom and black water tank smelling clean and fresh
- 💎 SAFE FOR YOU, PLUMBING and septic systems. Does not contain the toxic, formaldehyde releasing ingredient bronopol Concentrated to save you money!
- 💎 DIGESTS SOLIDS: Immediately starts digesting solid waste and all brands of toilet paper. With regular use, over time, it will dissolve years of heavy sludge and smelly scum. Reverse years of neglect
Bestseller No. 13 
Marine Holding Tank Treatment | Powerful Enzymatic Black Water Digesting Liquid - Eliminates Tank Odor and Breaks Down Waste (17 OZ)
- ERASES FOUL SEWAGE ODOR: Our unique boat holding tank solution is professional grade quality and contains ultra potent occurring aerobic culture & enzymes.
- DIGESTS & BREAKS DOWN WASTE: Liquefies paper products, sludge residue/buildup, organic waste in black/gray water galley boat tanks for faster and less stinky pump outs.
- MARINE SAFE & CHEMICAL FREE: Contains no harsh chemicals or pollutants. 100% All-Natural and is Made in the USA.
- STARTS WORKING WITHIN MINUTES: Eco Strong's bio-engineered malodor molecule formula works on contact and keeps working for hours -- even days after each dose.
- PREVENTS SEPTIC STENCH AT THE SOURCE: Once unleashed, our industrial strength bioactive liquid will not only terminate odor causing agents from leaking smells, but will prevent them from returning with regular use.
Bestseller No. 14 
The Thank Tank - RV Black Holding Tank Treatment - 30 Applications - Highly Concentrated Powder for Eliminating Smells and Liquifying Waste
- - SAY GOODBYE TO ODORS: Don’t just mask smells; get rid of them! Unlike other RV holding tank treatments that simply cover up odors, our treatment a unique blend of minerals to break down solids and liquefy waste.
- - 1 SCOOP GOES A LONG WAY: A single 1oz scoop packs enough of a punch to treat 40 gallons. Whether you’re looking for an RV black tank treatment or grey water tank treatment, this powerful powder helps clean your tank and prevent unwanted sensor buildup.
- - WITHSTANDS ALL TEMPERATURES: Sky-high or sub-zero temperatures won’t faze this RV toilet treatment. We’ve formulated it to withstand both summer and winter weather. So, no matter what time of year you take out your camper, this RV holding tank treatment won’t disappoint.
- -KIND TO SEPTIC TANKS: Never have to worry about chemicals destroying the balance of your septic tanks; never be forced to buy expensive, special toilet paper. Our RV holding tank treatment is not only septic-friendly, but prevents clogs and waste buildup.
- - EASY TO USE: Maintaining your holding tank is easy. Simply fill your toilet or sink with a gallon of water, mix one scoop of the treatment powder, and flush the toilet or drain the sink immediately. Go ahead, keep your RV funk-free the stress-free way!
Bestseller No. 15 
Unique RV Digest-It Holding Tank Treatment - Liquid Toilet Treatment (16 Treatments, 32 oz.) - 413-az
- BREAKS DOWN SOLID WASTE INSIDE TANKS. Liquifies human waste and all brands of toilet paper. Digests residual sludge from years of build-up. Works in black and gray tanks.
- ELIMINATES TOILET & TANK ODORS without masking. Extra strength activated cleaners eliminate odors at their source without covering them with overpowering perfumes.
- HELPS PREVENT SENSOR MALFUNCTION. Cleans and removes solid waste and paper before it can cling to sensor probes, preventing misreads.
- THE STRONGEST, ALL-AROUND TREATMENT. Breaks down waste AND eliminates odors in RV holding tanks. Proprietary formula contains billions of activated bio-enzymatic cleaners per treatment. Proudly made in the USA.
- TRUSTED & EFFECTIVE. Contains no formaldehyde or bronopol. Safe and beneficial for septic systems at home or at campgrounds. Complies with all state dumping laws. Trusted choice that you can feel confident using around your family and pets. No overpowering fragrances. No outdated chemicals. No worries!
SaleBestseller No. 16 
Camco RV Flexible Swivel Stik with Shutoff Valve - Creates Powerful Cleaning Action that Dislodges and Flushes Stubborn Waste Deposits and Combats Odors (40074), 55-1/2 Inch
- Powerful rotary cleaning action dislodges and flushes the stubborn waste deposits and odor-causing particles left after holding tank is emptied.Fit Type: Universal Fit
- Solid section including handle measures 24" long; the flexible section measures 34" long with a 2" diameter nozzle
- Flexible section is perfect for use with holding tanks that are offset from the toilet
- Easy grip handles with a standard 3/4" female garden hose connection
Bestseller No. 17 
HAPPY CAMPERS RV Holding Tank Treatment - 18 Treatments
- Not for Sale or Shipping to California.
- ODOR FREE: absolutely no sewer smell
- EFFECTIVE: in extreme hot and cold temperatures (over 100° F)
- LIQUIFY: waste solids and most ordinary household tissue (no expensive special tissue needed)
Bestseller No. 18 
Thetford 96527 Blaster Holding Tank Cleaner Pouches, 1.6 oz., White (Pack of 4)
- The first 2-in-1 tank cleaner specifically formulated for black/gray water and portable tanks
- Cleans overnight - then just dump and go
- Micro-foam action improves surface contact to vertical tank walls
- Active enzymatic blend blasts crud and attacks tissue, waste, and grease
- Formulated safe for RV/Marine tanks, plumbing, seals and surfaces
SaleBestseller No. 19 
Valterra A01-0184VP Master Blaster RV Tank Cleaning Wand with Power Nozzle , White
- Package Dimensions: 27 L x 2 H x 3.75 W (inches).Fit Type: Universal Fit
- Package Weight: 0.5 pounds
- Country of Origin : Mexico
- Part Number: A01-0184VP
SaleBestseller No. 20 
Camco TST Ultra-Concentrated, 8-Pack (4 oz Bottle),TST Orange,41191
- Fit type: Universal Fit
Last update on 2023-01-12 / Affiliate links / Images from Amazon Product Advertising API