Best RV Black Tank Cleaner: 9 Holding Tank Treatment Products For You

No one wants to experience unnecessary stresses while out for an RV vacation. For a camper like you, this might come in the form of unwanted odors and clogged drainage systems.

The solution? Get yourself an RV black tank cleaner to NEVER spoil your vacation again!

Here are the NINE best black tank treatments you should definitely check out.

Best Black Tank Treatments: Choose Your Pick!

Best Overall Pick: Happy Campers Organic RV Holding Tank Treatment

Happy Campers RV Holding Tank Treatment - 64 treatments

Key Features

  • Biodegradable and Environmental Friendly
  • Effective in Extreme Hot AND Cold Temperatures
  • Powder Type

Leaving nothing but happy campers in its trail, Happy Campers is our BEST OVERALL PRODUCT.

This holding tank treatment CLEARS tanks of solid wastes and NEUTRALIZES odor naturally!

It simply covers ALL the necessities you would want to find in a tank treatment… and arguably, almost none of the disadvantages you would find elsewhere.

Cleaning Mechanism

The Organic RV Treatment is a powder type of treatment. When dissolved in water, it works just like an ENZYME or BIOACTIVE TREATMENT.

The product clings to the debris and waste of your tanks to BREAK THEM DOWN efficiently. This mechanism is also what ELIMINATES FOUL ODORS.

The Happy Campers treatment may be used to address all kinds of drainage problems:

  • Stubborn tank issues
  • Kitchen sink clogs
  • Shower drainage systems

What’s also great is it does NOT get affected by residuals. This means that you do NOT have to worry about previous tank treatment chemicals NOR regularly adds more treatment to ensure effectiveness.

Such effectiveness ensures the HEALTH of your RV’s plumbing system while ALSO saving on maintenance costs.

It is also BIODEGRADABLE. It is NOT harmful to the environment when used.

Temperature Adaptability

The effectiveness of the Happy Camper Treatment is NOT affected by extreme HOT or COLD temperatures!

This is great if you travel with your RV during DIFFERENT TIMES of the year.

This means that you can schedule your trips during the summer and winter WITHOUT experience any problems with your sewer line.


Here’s how much of the Happy Camper Organic RV Treatment you NEED to treat your tanks:

  • ONE SCOOP of treatment can treat 40 GALLON BLACK TANK
  • TWO SCOOPS of treatment can treat your BLACK TANK AND GRAY TANK

This is all thanks to the CONCENTRATION of minerals and nutrients of the treatment.

To PROPERLY USE the product, simply follow these steps:

  • Fill your toilet or drainage with a GALLON OF WATER
  • Flush the toilet to introduce the TREATMENT to your RV tanks

You may REPEAT these steps to achieve the best results.

Of course, this would mean the breakdown of most solid waste in your drainage.

So… Are There Any Downsides to This Treatment?

Depending on who you ask, the product may lose to PREFERENCE because of its type…

Remember: it is a concentrated powder. Some may just prefer to use liquid over powder types for convenience.

Another drawback would be its BULKINESS for storage. The Happy Camper Organic RV Treatment comes in BUCKETS of different sizes, so make sure you have enough space to store this in your RV.


  • No harsh chemicals
  • Adaptable to extreme temperature
  • Easy to use
  • Minimal amounts for treatment
  • Great odor elimination
  • Affordable


  • Occupies relatively large storage space
  • Treatment preference type

Best Value Pick: Walex Porta-Pak Holding Tank Deodorizer

Walex Porta-Pak RV Black Holding Tank Deodorizer Drop-Ins, Fresh Scent, 10 Deodorizing Packets

Key Features

  • Comes in Capsules
  • Odor Protection for Seven Days
  • Scent Options
  • Pod Type

The Walex Porta-Pak Deodorizer is one of the best RV holding tank treatments in the market right now.

It comes with a lot of features at an affordable price, making it our BEST VALUE PRODUCT.

Pod Type Treatment

The deodorizer is PORTIONED INTO INDIVIDUAL CAPSULES, making it easy to use.

Such packaging comes with a FEW ADVANTAGES that this Walex product can definitely boast:

  • Exact measurements: You don’t have to WORRY about using too little or too much of the product.
  • Spillage-free: Exact measurements entail no unnecessary spills around your RV.

This means that your input of treatment goes STRAIGHT into the RV holding tanks for RV tank treatment.

This also ensures the QUICK ACTION of the pods to ELIMINATE FOUL ODORS and black tank smells.

Deodorizing Features

The Walex Porta-Pak comes in two scents:

  • Fresh Scent
  • Lavender Breeze

Once used, the product can provide SEVEN DAYS of odor protection. This is great for when you’re planning to have a vacation for LONGER PERIODS OF TIME.


Each pod can treat a 40 GALLON CAPACITY BLACK TANK.

To PROPERLY USE the product, simply:

  • Drop one pod into 5-7 GALLONS OF FRESHWATER
  • Flush it down into your black water tank

It’s that easy! The bag also comes in a zip-lock package mechanism making it RESEALABLE.

This makes the treatment:

  • Easy to store
  • Free of leakages
  • Safe from children’s reach

The Walex Porta-Pak Deodorizer is our BEST VALUE treatment simply because of ALL these features at an affordable price!

So… Are There Any Downsides to This Treatment?

Despite having the convenience of being packaged in PODS, this may be a disadvantage for others. This is because you have NO WAY of accurately measuring the solution.

Likewise, ADJUSTMENTS are all dependent per pod.

You may have to use MORE than what you may have intended or needed in the first place.


  • Convenience of individual capsule pods
  • Great odor elimination
  • Long-lasting and fast-acting treatment
  • Ample capacity for treatment


  • Immeasurable potency
  • More pods are needed for stronger tank odors
  • Just 10 pods per pack

Best Budget Pick: Camco TST Ultra Concentrated 41197 RV Toilet Treatment

Camco 41197 TST Ultra-Concentrate Orange Scent RV Toilet Treatment, Formaldehyde Free, Breaks Down Waste And Tissue, Septic Tank Safe, Treats up to 16-40 Gallon Holding Tanks (1 Gal)

Key Features

  • Odor Eliminator
  • Citrus Scent
  • Cost-Effective
  • Liquid Type

The TST Ultra Concentrated Treatment from Camco is an AFFORDABLE liquid concentrate treatment. This is our BEST BUDGET PICK.

The Camco TST Ultra Concentrated is no different from its capsule and pod-type counterpart because it sports the signature ORANGEY CITRUS SCENT.

This offers a REFRESHING ALTERNATIVE to the usual flower scents famous in RV black water tank treatment.

Cleaning Mechanism

This liquid concentrate may not be as convenient as its pod counterpart, but it INTEGRATES better in the water!

The TST Ultra Concentrated Treatment can DISTRIBUTE MORE EVENLY inside the RV black tank.

This makes its tank treatment AND deodorizing effect more EFFECTIVE… not to mention MORE appealing to an RV owner, too.


Liquid treatments are also often PREFERRED because YOU control how much you can use.

Just 2 OUNCES of the liquid concentrate can TREAT A 40 GALLON RV HOLDING TANK.

The deal is especially cost-effective because you do NOT need to apply A LOT to treat such a HUGE CAPACITY TANK.

To use the product, simply follow these two steps:

  • Lightly dilute 2 ounces of the product in water
  • Flush the resulting concentrate down your RV toilet bowl into the septic system

This should ALSO be strong enough to BREAK DOWN WASTE such as toilet tissue paper, so don’t worry about possible clogging!

And another great thing? You can freely adjust the AMOUNT that you put into these black tank treatments… all because it is a LIQUID TYPE.

So… Are There Any Downsides to This Treatment?

Liquid black tank treatments usually encounter STORAGE problems:

  • Space. Unlike pods in packets, these are stored in BOTTLES or GALLONS, which occupy a relatively larger space.
  • Leakage. The product may experience LEAKAGE if the bottles are NOT tightly sealed.

The Camco TST Ultra Concentrated is susceptible to these downsides, so MAKE SURE that you store it properly!

Nonetheless, the product does its job ALL at an affordable price.


  • Affordable
  • Concentrated liquid formulation for RV black tank treatments
  • Easy to control dosage
  • Fresh citrus scent


  • Storage space
  • Possible packaging leakage

Best For Beginners Pick: Walex BIO-11530 Bio Pak Waste Digester and Odor Eliminator

Walex Bio-Pak RV Black Holding Tank Deodorizer and Digester, Natural Enzyme Formula, Alpine Fresh 10-Pack

Key Features

  • Ten Individually-Packaged Pods Per Pack
  • Natural Enzyme Formula
  • Non-Staining and Safe for Septic Tanks
  • Can Break Down Both Waste and Paper
  • Pod Type

The Bio Pak Waste Digester and Odor Eliminator is ANOTHER product from Walex on this list.

We believe that the Bio Pak product is a GREAT ENTRY LEVEL black tank cleaner that you should consider. THIS is why it is our BEST FOR BEGINNERS PICK!

Walex has always been a pioneer of sanitation and odor-control manufacturing products. This ensures the QUALITY and SUSTAINABILITY of the Bio Pak.

That said, the product effectively targets GREASE, SLUDGE, SOLID WASTES, and SEWER SMELL in their black tank treatments.

Cleaning Mechanism

The Bio Pak Waste Digester and Odor Eliminator employs an enzyme-based formula.

This mechanism is what enables the product to do the following:

  • Eliminate tank odors
  • Replace odors with an alpine scent
  • Eliminate waste buildup and toilet tissue to unclog
  • Eliminate the risk of bacterial growth in the gray tanks AND black tanks
  • Eliminate the risk of staining your tanks

The product also does NOT contain any potentially harmful chemicals. This ensures the safety of its black tank treatments!

Of course, all thanks to the enzymatic reactions that break down the waste NATURALLY.


The packaging of the Walex Bio Pak in pods allows it to be used EASILY:

  • Ensure that your toilet or drainage has ENOUGH WATER
  • Drop in your Bio Pak pod into the toilet
  • Flush the toilet to introduce the RV holding tank treatment

As pods, this Walex product does NOT require any more measuring or scooping.

Simply introduce the formulated package to your black tanks, and you’re GOOD TO GO!

So… Are There Any Downsides to This Treatment?

Pod treatments only suffer from the disadvantage of WHOLLY USING EACH POD when making adjustments.

Since the measurements are pre-set, one RV holding tank treatment may require MORE THAN ONE Walex Bio Pak pod… of course, depending on the size of the tanks themselves.

It may also take some time to dissolve! Remember that these are PACKAGED PODS and not immediate powdered RV black tank treatments.

Nonetheless, the AFFORDABLE PRICE POINT at which Walex offers the Bio Pak Waste Digester and Odor Eliminator is GREAT NEWS for RV owners.


  • No harmful chemicals
  • Odor control
  • Convenient and intuitive usage
  • Affordable price
  • Instant results


  • Does not dissolve quickly
  • Possible multiple pods per single RV black tank treatment
  • Limited number of pods per pack

Green Gobbler Holding Tank Deodorizer and Treatment

Green Gobbler Holding Tank Deodorizer and Treatment | RV, Marine & Porta Potty Treatment | Prevents Clogs & Waste Build-Up (10 Pod Pouch)

Key Features

  • Odor Eliminator
  • Waste Breakdown and Digestion
  • Declogging Feature
  • Pod Type

The Green Gobbler Holding Tank Treatment is a GREAT odor-eliminating product.

With an odor preventing formula that helps facilitate the declogging of your RV toilet, Green Gobbler offers an effective cleaner at an AFFORDABLE price.

Cleaning Mechanism

The Green Gobbler Holding Tank Treatment uses water-soluble pods that achieve the following:

  • Dissolve waste products from the drains
  • Unclog drainage and septic tank system
  • Delivers long-lasting odor prevention for toilets

These basic features help maintain the HEALTH of your holding tanks.

Maintenance through the use of treatments regularly is ideal for keeping your tank systems CLEAN AND OPERATIONAL.


Here are TWO WAYS on how to properly use the Green Gobbler pods:

  • Flush ONE POD down the toilet, or
  • Throw ONE POD directly into the holding tank

Flushing down the pods into your RV toilet helps ELIMINATE WASTE from these drainage systems as well.

On the other hand, direct tank treatment is suggested if your drains are STILL working perfectly… of course, with the hindsight that the tank has an ACCUMULATION OF WASTE and is causing foul odors.

So… Are There Any Downsides to This Treatment?

Drop-ins are pre-measured and portion-controlled.

These are disadvantages because you do NOT have specific dosages to follow. This means that treatments are never made specific to your needs.

However, it does come at the advantage of CONVENIENCE… for which pod types are specifically made for in the first place.

Overall, the Green Gobbler Holding Tank Treatment is a great all-around alternative for your tank treatment needs!


  • Intuitive pod usage
  • Odor control
  • Effective holding tank maintenance
  • Affordable


  • No specific dosing because of portion control

TankTechsRx RV Holding Tank Treatment & Cleaner

TankTechsRx - RV Holding Tank Treatment & Cleaner - 33.8 ounce = 68 treatments - All Natural Probiotics for RV, marine, camping, portable toilets

Key Features

  • Odor Neutralizing
  • Probiotic Solution
  • No Harmful Chemicals
  • Suitable for the Treatment of Black Tanks and Gray Tanks
  • Liquid Type

The TankTechsRx RV Holding Tank Treatment & Cleaner is one of the MOST VERSATILE black tank treatments in the market right now.

It is a product perfect for you if you are SENSITIVE TO SMELLS.

This is because RV black tank treatments most of the time come in a VARIETY OF SCENTS: fresh, citrus, or floral… so while popular, you might ALSO want to consider an RV tank treatment that is simply NEUTRALIZING.

If such is the case, then the TankTechsRX tank treatment is the one for you.

Cleaning and Odor Neutralizing Mechanism

The TankTechsRx RV Holding Tank Treatment & Cleaner uses a bacterial solution for a NATURAL and ENVIRONMENTALLY FRIENDLY RV black tank cleaner.

It is a SAFE probiotic solution that you can use around your family and pets.

Moreover, these probiotic bacteria also LIQUIFY WASTE more effectively for dumping waste into your black tank.

So as a TREATMENT, it can do the following:

  • Neutralize odors. Rather than relying on SCENTS to overpower the smell of the septic system, it merely MASKS THEM to produce no odors.
  • Remove struvite crystals . These are BUILD UPS in the walls of your tank that cause slowing of drainage, failure of tank sensors, and trapping of doors.

Tank Compatibility

What’s great about the TankTechsRx Treatment is that you can use it to clean your black tank, grey tank, and galley tank!

Most tank treatments usually just offer effectiveness over ONE kind of tank… TWO if you’re lucky.

However, that is NOT the case with this product. To use it correctly, simply follow these two steps:

  • Add a small amount to your RV toilet bowl
  • Mix this with an arbitrary amount of water
  • Flush the toilet bowl

You do NOT have to worry about the amount of treatment! This is because the product is a “one size fits all” kind of treatment.

The bacteria will MULTIPLY to treat any size tank… likewise, it will CONTINUE to work until you finally empty your tank.


So… Are There Any Downsides to This Treatment?

Unfortunately, the product is on the higher price point side.

Yet despite being EXPENSIVE, the TankTechsRx Treatment offers a holding tank treatment that is UNIQUE, VERSATILE, AND EFFECTIVE.

You are assured great value for your purchase.


  • No harmful chemicals
  • Effectively neutralizes odors
  • Straightforward and versatile usage


  • More expensive than other options
  • Arbitrary measurement of treatment

Thetford Aqua-Kem RV Holding Tank Treatment

Aqua-Kem RV holding tank treatment - Deodorant / Waste Digester / Detergent - 1 gallon - Thetford 28614

Key Features

  • Odor Deodorizing
  • Concentrated Formula for Waste Breakdown
  • Weather Adaptability
  • Liquid Type

The Thetford Aqua-KEM is a POWERFUL waste tank deodorant.

If you are looking for a product to REMOVE UNWANTED SMELLS from your RV tank, this is definitely the product for you.

The black tank treatment also boasts an ultra-concentrated formula that BREAKS DOWN WASTE… and it does this perfectly in EVERY weather condition, too!

Cleaning and Odor Neutralizing Mechanism

The Thetford Aqua-Kem has a concentrated formula that LIQUIFIES WASTE and breaks down toilet paper… it’s simply a great declogging holding tank treatment.

More importantly, it is marketed as a 3-in-1 product:

  • Waste Liquefier. Again, it breaks down waste and toilet paper for UNCLOGGING purposes.
  • Detergent. It CLEANS the walls of the RV holding tanks to avoid material buildup.
  • Deodorant. It completely NEUTRALIZES odors.

These three features ALL in one product make the Aqua-Kem a convenient product to always have.

Prioritizing all three features allows the treatment to be VERSATILE. You do not have to worry about one concern over the other:

  • It helps minimize BUILDUP OCCURRENCES around the tank walls and drain lines
  • It helps minimize your expenses for future repairs, all because your holding tank is kept in prime condition

Tying all these mechanism features is how the black tank cleaner is also 100% biodegradable. It is COMPLETELY safe for septic tanks.


The Thetford Aqua-Kem works in ALL weather conditions. This makes it perfect for LONG PERIODS of vacation and travel.

Just make sure to empty your tank at least once a week! This will keep your tank healthy and clean.

Additionally, Thetford offers the Aqua-Kem in a VARIETY OF FORMS… meaning, not just as a liquid type!

This is convenient because you have the FREEDOM to choose which type suits your needs best.

So… Are There Any Downsides to This Treatment?

The Aqua-Kem liquid formula may provide instant results upon use, but it MIGHT be less convenient than its drop-ins counterpart.

This is considering any packaging problems that may result in leakage AND user preference… and concerning this, some users report a strong hint of its chemical smell.

It is also priced higher than most holding tank treatments.

Regardless, the product is still one of the best RV black tank treatments you can get.


  • Biodegradable 3-in-1 product
  • Adaptable to cold and hot weather
  • Variety of product forms


  • Hint of chemical smell
  • User preference over liquid types
  • Expensive

Unique RV Digest-It Holding Tank Treatment

Unique RV Digest-It Holding Tank Treatment - Packaging May Vary - Concentrated Powder, Eliminates Odors, Breaks Down Waste (30 Treatments) - 41G-1

Key Features

  • Odor Eliminator
  • No Outdated Chemicals
  • Protection for Sensors
  • Powder Type

The Unique RV Digest-It is a great alternative to your black tank cleaner.

Offering the basic features essential for an RV black tank treatment, the Unique RV Digest-It has HIGH SATISFACTION RATES from its customers.

Cleaning and Odor Control Mechanism

The product uses a bio-enzymatic formula to BREAK DOWN AND DIGEST the solid waste inside the RV black tank AND ELIMINATE ODORS.

These bacteria use solid waste, urine, and toilet paper as their food source… this effectively produces the ENZYMES that further break down waste to PREVENT CLOGGING.

Unique RV Digest-It achieves this WITHOUT the use of outdated chemicals:

  • Without the chemical formaldehyde or bronopol, the product is deemed SAFE for septic systems AT HOME OR IN RV CAMPGROUNDS
  • The RV is cleared to dump the tank contents in designated stations

Simply put: By breaking down waste, ODOR is controlled as well.


Here’s how to use the powder type treatment Unique RV Digest:

  • Add a single scoop of product into the toilet bowl
  • Add another gallon of water into the mixture
  • Flush the contents down the toilet

The package already INCLUDES the scoop, so you don’t have to do extra measuring steps as it is added to the water… although some report having a difficult time looking for the scoop at first.

Following these steps helps PREVENT SENSOR MALFUNCTION.

Remember: cleaning and removing solid waste BEFORE it clings onto the RV tank’s sensors prevents system misinformation. It provides accurate reading for a better travel experience!

So… Are There Any Downsides to This Treatment?

The Unique RV Digest-It Holding Tank Treatment merely MASKS THE ODOR. It eliminates unwanted smells BUT does not introduce a new scent.

Depending on your preference, this might be a downside that you should highly consider before purchase.

Nonetheless, the black tank cleaner is still one we would recommend! It has no overpowering scent, no outdated chemicals, and it is an EFFECTIVE TANK TREATMENT.


  • Instant results due to powder dissolution
  • Intuitive usage
  • Effective breakdown of waste
  • Odor-free


  • No new scent
  • Difficult packaging of scoop

Valterra Pure Power Blue Waste Digester and Odor Eliminator

Valterra V23001 'Pure Power Blue' Waste Digester and Odor Eliminator - 16 oz. Bottle Size: 16 Ounce, Model: V23001, Outdoor&Repair Store

Key Features

  • Weather Adaptability
  • Suitable for the Treatment of Black Tanks and Gray Tanks
  • Biodegradable Chemical Formulation
  • Liquid Type

The Valterra Pure Power Blue is another popular product when it comes to RV tank treatments.

If you are looking for an ALTERNATIVE that is suitable for both cold AND hot weather, then definitely consider this treatment!

Cleaning Mechanism

This black water tank treatment is an ALL-NATURAL AND SAFE FORMULA that works well in all weather conditions.

The Valterra Pure Power Blue has a formula that utilizes a blend of enzymes and bacteria to DIGEST RV toilet paper, grease, scum, and drainage waste!



The Valterra Pure Power Blue is one of the best RV black tank treatments because you can use it for both your grey AND black tank… this eliminates the need to purchase TWO DIFFERENT PRODUCTS.

As a summary of its usability functions:

  • A 128-OUNCE BOTTLE is good enough for 64 TREATMENTS.

Even better is how the product comes at an AFFORDABLE PRICE. This makes it a valuable tank cleaner.

So… Are There Any Downsides to This Treatment?

The Pure Power Blue is formulated to be a tank cleaner that ELIMINATES ODORS.

It MASKS UNWANTED ODORS with a clean and fresh scent for odor control.

However, some users report that its fragrance may sometimes be too strong and overpowering.

Definitely do take this into account if you are SENSITIVE TO SMELLS. You may want to settle for a black tank treatment odor NEUTRALIZER instead.

Nonetheless, this Valterra product is a worthwhile holding tank treatment… especially because it is free of the chemical formaldehyde to measure safety!


  • Environmental friendly
  • Affordable and valuable
  • Cold and hot weather adaptability
  • Grey and black tank compatibility
  • Odor eliminator


  • Strong fragrance for those sensitive smells

Our Verdict

Tank cleaners generally achieve the same goals and have similar features… for the most part, that is.

You’ll find that EACH PRODUCT offers similar treatment features, but in their own unique way.

  • We definitely recommend the Happy Campers Organic RV Holding Tank Treatment if you’re looking for the BEST OVERALL PRODUCT.
  • What if you want the BEST VALUE PRODUCT? You should check out the Walex Porta-Pak Holding Tank Deodorizer.
  • Do you have your eyes on the BEST BUDGET PRODUCT? The Camco TST Ultra Concentrated 41197 RV Toilet Treatment is the one for you.
  • If you’re starting to explore your treatment options, consider the Walex BIO-11530 Bio Pak Waste Digester and Odor Eliminator, our BEST BEGINNERS PRODUCT.

But again, you are NOT missing out on extreme differences if you check out the other products on this list too!

Don’t be afraid to explore these different options… find the perfect one for you yourself.

Buying Guide: Here’s What to Look For When Choosing the Best RV Black Tank Treatment

There are FOUR FACTORS that we recommend you look for while choosing the RV tank cleaner for you:

  • Type of Treatment
  • Treatment Purpose
  • Septic Tank Compatibility
  • Affordability

All of course, with effectiveness as a standard.

#1 Type of Treatment

Effectiveness does NOT depend on the type of treatment. Rather, they account more for your CONVENIENCE.

Options for RV black tank treatment come in two types: tablets and liquids.

Tablet or Pod Treatments

These types are MORE CONVENIENT to use.

You simply just have to put the pods in the tank and WAIT for the results. Oftentimes these drop-ins also involve the facilitating of an RV toilet.

What’s great about this is that you do NOT have to worry about LEAKAGE or SPILLAGE.

Powder Treatments

Powder types are easier to MANAGE than pods.

This is because you can CONTROL the amount that you put in!

You may consider formulating the treatment mixture. One advantage of doing so is you save on extra expenses and resources.

Liquid Treatments

The CONVENIENCE with a liquid treatment is that you simply have to FLUSH the contents down the toilet.

The only difference is that you have to MEASURE the liquid beforehand. You should also be wary of LEAKAGE or SPILLAGE due to its packaging.

#2 Treatment Purpose

Your purpose dictates the type of chemicals you should use. Purposes could include:

  • Odor control
  • Curtail the growth of germs
  • Bacterial growth control

You should also check if the chemicals used are BIODEGRADABLE.

A biodegradable black tank treatment would usually have NO FORMALDEHYDE as an ingredient.

This is useful to know if the product will naturally disintegrate before serving your treatment purpose.

#3 Septic Tank Compatibility

You should determine the compatibility of the type of chemicals with the BASE MATERIAL OF THE SEPTIC TANK after identifying them with your PURPOSE.

The choice for your black tank treatment could CAUSE UNWANTED REACTIONS that manifest through:

  • The formation of foul odors, or
  • The degradation of the tank material

Ensuring this compatibility could help you AVOID any issues in the RV toilet system.

#4 Price

The CHEAPEST product is NOT always the best RV black tank treatment.

Here are QUESTIONS you should ask yourself when taking into account the price of the treatment:

  • How many treatment sessions does the product entail?
  • How many tablets or pods are provided in one pack?
  • How many times can you use the liquid in the bottle?
  • How much of the product is needed for one treatment session of a 40-gallon capacity holding tank?

More than being INEXPENSIVE, RV black tank treatments should be COST EFFECTIVE and VALUABLE.


What Are the Types of RV Tanks?

There are two types of HOLDING TANKS in an RV:

  • Black Water Holding Tank. The black tank collects water from the toilet.
  • Grey Water Holding Tank. The grey tank collects water from the shower, kitchen sink, and bathroom sink.

Tank treatment is necessary regardless of type! This is to ensure the quality of your HOLDING TANK ODOR and ABILITY TO BREAK DOWN WASTE.

What Is a Dump Station?

Simply, this is where you DUMP the contents of the holding tanks.

Here’s what you should generally do at a dumping station:

  • You should ALWAYS dump the BLACK TANK FIRST
  • Ensure that you have a proper WATER HOSE to facilitate water transfer
  • Only then should you dump the contents of a GREY TANK

This order helps CLEANSE the sewer hose after the opening of the grey tank.

Why Is Black Tank Treatment Important?

Black tank treatment is important because of these primary reasons:

  • Maintains the hygiene of your RV
  • Keeps the drainage AND sewage system of your RV clog and odor-free
  • Eliminates growth and propagation of harmful bacteria
  • Dissolves solid wastes and toilet paper to prevent clogging
  • Helps keep the tank sensors to give accurate readings about the status of your tanks


Maintaining the healths of your RV’s black tank and grey tank are essential responsibilities as an RV owner.

Ultimately, the choice for the BEST RV black tank cleaner for you depends on these factors:

  • Type of Treatment
  • Treatment Purpose
  • Septic Tank Compatibility
  • Affordability

That said, here are TOP THREE picks for you:

Best Overall Pick: Happy Campers Organic RV Holding Tank Treatment

The Happy Campers treatment is our BEST OVERALL PICK because it ticks off ALL of the factors you should look for in black tank treatment:

  • It CLEANS your tank
  • It DEODORIZES your tank
  • It is ADAPTABLE to extreme temperature

This powder-type Happy Campers product has a GREAT customer and industry reputation, making it simply one of the best options in the market right now.

Best Value Pick: Walex Porta-Pak Holding Tank Deodorizer

The Walex Porta-Pak is surprisingly still AFFORDABLE at its selling price.

Yet despite only offering TEN PODS per package, the product is HIGHLY VALUABLE and worth it.

With the Porta-Pak, you are GUARANTEED the convenience of using capsule pods to eliminate odor and treat your black tank effectively.

Best Budget Pick: Camco TST Ultra Concentrated 41197 RV Toilet Treatment

The TST Ultra Concentrated Treatment from Camco is an AFFORDABLE liquid concentrate for your black tank treatment.

It is our best budget pick because of the versatility in AMOUNT OF PRODUCT you can use for one treatment.

Just one drop of the liquid concentrate can already treat an RV black tank with GALLONS in capacity!

Camco offers this at an affordable price while revamping your tanks with an orangey citrus scent.

Best For Beginners Pick: Walex BIO-11530 Bio Pak Waste Digester and Odor Eliminator

The Walex Bio Pak Holding Tank Treatment is the best RV black tank cleaner for BEGINNERS.

It is a GREAT entry-level cleaner because it achieves all of the basic goals a treatment should do: it eliminates odor, eliminates waste buildup, AND biodegradable.

Such effectiveness, convenience for drop-ins, and safety for family use make it our entry-level choice.

Have you tried any of these RV black tank treatments? We highly suggest you do so if you’re looking for a fun, hassle-free, and memorable RV camping experience!


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