Tired of dealing with stinky RV holding tanks? I’ve personally tested tons of treatments to find the best solutions for a fresh and hassle-free camping experience.
RV holding tanks can cause bad odors and build-up on camping trips. As someone who has dealt with stinky tanks on a cross-country RV adventure, I found the right treatment made all the difference.
You can trust my guide because I have tested many products with thousands of other RV fans. Imagine never worrying about smells again. Keep reading to discover the top picks that will keep your trips fresh and easy.
List of Top 10 RV Holding Tanks Treatments
| Image | Title | Best For | Price |
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Camco TST MAX RV Toilet Treatment Drop-INs – Control Unwanted Odors & Break Down Waste and Tissue – Safe Septic Tank Treatment – Orange Scent, 30-Pack (41183) |
This product is perfect for RV owners who camp and travel in their vehicles. It’s also great for boaters and anyone using portable toilets on camping trips. |
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Camco TST MAX RV Toilet Treatment Drop-INs – Control Unwanted Odors and Break Down Waste and Tissue – Septic Tank Safe – Lavender Scent – 30-pack (41553) |
Tired of RV toilet odors? Want an easy way to keep your RV or boat smelling fresh? These drop-ins are for any RVer or boater who wants a simple, effective, and septic-safe solution for eliminating those nasty odors! |
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Happy Campers RV Toilet Treatment – Powerful Odor Control, Long-Lasting RV Tank Treatment – Prevents Clogs, Buildup, Sensor Failure – Keeps Holding Tank Clean & Healthy, Odor Free |
This RV toilet treatment is perfect for RV owners, campers, and boaters who want a clean, odor-free holding tank without the hassle of clogs or buildup. It’s great for weekend trips or long adventures where you travel and need reliable protection for your tank. |
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Happy Campers Holding Tank Treatment, 64 Doses – Powerful RV Black Tank Treatment for Odor Control, Septic Safe, Works in RV Gray Tanks, Prevents Buildup, Slow Draining & Clogs |
Tired of stinky RV trips? If you want a clean and fresh-smelling RV, this is for you. Make your next adventure worry-free! |
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Unique RV Digest-It Ultra – 32 Super Concentrated RV Toilet Treatments – Eliminates Smells and Liquifies Waste, Easy-Measure Extra-Strength Bio-Enzymatic Holding Tank Treatment (32 oz) |
Tired of RV toilet troubles? This product is for you. Unique RV Digest-It Ultra is perfect for anyone who wants a cleaner, easier, and smell-free RV experience. |
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Walex Porta-Pak Black Holding Tank Deodorizer & Portion Control System Drop-Ins – Rapid Breakdown of Waste & Paper, Odor Prevention, Cleans Tank & Sensors – Fresh Scent, 10-Pack |
This product is perfect for RV owners who camp often and need to keep their holding tanks clean. It’s also ideal for boaters and campers who want to stop bad smells and clogs in their tanks. |
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Camco TST Camper/RV Grey Water Odor Control – Removes Grease Buildup in Gray Water Tank, Sink & Shower Drains – 4oz Treats 40-Gal Holding Tank – Safe Septic Tank Treatment – Lemon, 64 oz (40256) |
Tired of stinky RV odors and slow drains? This is for you. The Camco TST Grey Water Odor Control keeps your RV fresh and clean, so you can enjoy your trip. |
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Unique RV Digest-It+, Extra-Strength RV Toilet Treatment – Liquifies Waste and All Brands of Toilet Paper – Odor Eliminator (32 oz) |
This extra-strong RV toilet treatment is perfect for RV owners who want to avoid clogs from waste and toilet paper, eliminate bad odors, and keep their tanks working smoothly no matter how they camp. It’s ideal for full-time RVers, those in hot climates, or anyone seeking worry-free trips with expert help included. |
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Liquified RV Toilet Treatment – Black Holding Tank Digester – Odor Eliminator – Orange Scent – Matts RV Reviews (Orange, 32oz) |
This product is perfect for RV owners who want clean tanks and fresh smells on every trip. It suits full-time RVers and weekend campers who hate messy dumps and bad odors. |
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Thetford 96637 Aquamax Spring Showers 1 Gallon |
This product is perfect for RV owners who need a safe way to treat waste in their tanks. It also suits boaters at campgrounds and marinas who want easy-to-use options. |
Detailed Reviews
Discover the top RV holding tank treatments for a better experience. Our expert analysis and customer input makes finding the perfect product easy. Say goodbye to odors and hello to stress-free travels!
1. Camco TST MAX RV Toilet Treatment Drop-INs – Control Unwanted Odors & Break Down Waste and Tissue – Safe Septic Tank Treatment – Orange Scent, 30-Pack (41183)

Ready to say goodbye to unwanted odors? Camco TST MAX controls odors and breaks down waste!
These drop-ins are easy to use. They are also safe for septic tanks. You’ll love the fresh orange scent!
This product is made in the USA. It’s perfect for RVs and boats. Get yours today!
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for RV owners who camp and travel in their vehicles. It’s also great for boaters and anyone using portable toilets on camping trips.
Ready to Purchase?
2. Camco TST MAX RV Toilet Treatment Drop-INs – Control Unwanted Odors and Break Down Waste and Tissue – Septic Tank Safe – Lavender Scent – 30-pack (41553)

Stop unwanted odors now. These drop-ins fight smells for up to 7 days. One drop-in treats a 40-gallon tank.
This formula is safe and strong. It works great for septic systems.
Made in the USA with a lovely lavender scent. Get 30 drop-ins that treat your RV. Enjoy a fresh-smelling RV trip!
| Pros | Cons |
|---|---|
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Perfect For:
Tired of RV toilet odors? Want an easy way to keep your RV or boat smelling fresh? These drop-ins are for any RVer or boater who wants a simple, effective, and septic-safe solution for eliminating those nasty odors!
Ready to Purchase?
3. Happy Campers RV Toilet Treatment – Powerful Odor Control, Long-Lasting RV Tank Treatment – Prevents Clogs, Buildup, Sensor Failure – Keeps Holding Tank Clean & Healthy, Odor Free

Ready for odor-free RV trips? Happy Campers RV Toilet Treatment is your simple solution. Enjoy a fresh, clean RV every time. It’s that easy!
This treatment stops odors fast. No more gross smells in your RV or boat. Keep your tanks clean and running smoothly.
It’s safe for all tanks and very easy to use. Now you can travel worry-free with Happy Campers.
| Pros | Cons |
|---|---|
|
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Perfect For:
This RV toilet treatment is perfect for RV owners, campers, and boaters who want a clean, odor-free holding tank without the hassle of clogs or buildup. It’s great for weekend trips or long adventures where you travel and need reliable protection for your tank.
Ready to Purchase?
4. Happy Campers Holding Tank Treatment, 64 Doses – Powerful RV Black Tank Treatment for Odor Control, Septic Safe, Works in RV Gray Tanks, Prevents Buildup, Slow Draining & Clogs

Ready to say goodbye to RV odors? Happy Campers Holding Tank Treatment is here to help. It’s made for black and gray tanks. Get ready for easy odor control today!
This treatment stops build-up and clogs. It keeps your tanks clean and working well. Enjoy smooth tank operation without the hassle.
It’s safe for all tanks and simple to use. Start your worry-free adventure now!
| Pros | Cons |
|---|---|
|
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Perfect For:
Tired of stinky RV trips? If you want a clean and fresh-smelling RV, this is for you. Make your next adventure worry-free!
Ready to Purchase?
5. Unique RV Digest-It Ultra – 32 Super Concentrated RV Toilet Treatments – Eliminates Smells and Liquifies Waste, Easy-Measure Extra-Strength Bio-Enzymatic Holding Tank Treatment (32 oz)

Unique RV Digest-It Ultra is a super concentrated treatment for RV toilets. It breaks down waste and toilet paper quickly and easily.
This treatment eliminates smells in your holding tank. It prevents clogs and makes dumping much simpler. Gray tanks get clean too.
Buy now and get help from our RV experts. Our Unique Cares program offers free support for all your waste problems.
| Pros | Cons |
|---|---|
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Perfect For:
Tired of RV toilet troubles? This product is for you. Unique RV Digest-It Ultra is perfect for anyone who wants a cleaner, easier, and smell-free RV experience.
Ready to Purchase?
6. Walex Porta-Pak Black Holding Tank Deodorizer & Portion Control System Drop-Ins – Rapid Breakdown of Waste & Paper, Odor Prevention, Cleans Tank & Sensors – Fresh Scent, 10-Pack

Tired of holding tank odors? Walex Porta-Pak is the answer! These drop-ins provide rapid waste breakdown and odor prevention.
This product is made for RV and marine tanks. It keeps your sensors clean and working.
Just drop it in! It’s made in the USA. Enjoy a fresh scent!
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for RV owners who camp often and need to keep their holding tanks clean. It’s also ideal for boaters and campers who want to stop bad smells and clogs in their tanks.
Ready to Purchase?
7. Camco TST Camper/RV Grey Water Odor Control – Removes Grease Buildup in Gray Water Tank, Sink & Shower Drains – 4oz Treats 40-Gal Holding Tank – Safe Septic Tank Treatment – Lemon, 64 oz (40256)

Keep your RV fresh and clean with Camco TST grey water odor control. This powerful formula removes grease buildup from tanks, sinks, and drains, stopping clogs and bad smells.
It neutralizes odors with a lemon scent, staying safe for your septic tank. Just 4 ounces treat a 40-gallon tank easily. This 64-ounce bottle keeps your camper inviting on every trip.
| Pros | Cons |
|---|---|
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Perfect For:
Tired of stinky RV odors and slow drains? This is for you. The Camco TST Grey Water Odor Control keeps your RV fresh and clean, so you can enjoy your trip.
Ready to Purchase?
8. Unique RV Digest-It+, Extra-Strength RV Toilet Treatment – Liquifies Waste and All Brands of Toilet Paper – Odor Eliminator (32 oz)

RV Digest-It+ is an extra-strength treatment for your RV toilet. It liquifies waste and all brands of toilet paper to stop clogs.
This product is stronger than the classic one and fixes clog-causing waste. It also kills odors from your tank, porta potty, and sewer.
It works with the Unique Method for clean camping any way you like. Say goodbye to sensor probe problems as it keeps probes working. Buy now and get help from our expert team.
| Pros | Cons |
|---|---|
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Perfect For:
This extra-strong RV toilet treatment is perfect for RV owners who want to avoid clogs from waste and toilet paper, eliminate bad odors, and keep their tanks working smoothly no matter how they camp. It’s ideal for full-time RVers, those in hot climates, or anyone seeking worry-free trips with expert help included.
Ready to Purchase?
9. Liquified RV Toilet Treatment – Black Holding Tank Digester – Odor Eliminator – Orange Scent – Matts RV Reviews (Orange, 32oz)

Our Liquified RV Toilet Treatment liquifies solid waste and toilet paper for easy dumping. It fights foul odors at the source and leaves a fresh orange scent.
This product prevents sensor malfunctions by clearing buildup. It is 100% biodegradable and safe for septic systems, with no formaldehyde.
Try Liquified today to keep your tank clean. It is proudly made in the USA. Your RV will thank you.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for RV owners who want clean tanks and fresh smells on every trip. It suits full-time RVers and weekend campers who hate messy dumps and bad odors.
Ready to Purchase?
10. Thetford 96637 Aquamax Spring Showers 1 Gallon

Keep your RV clean and fresh with Thetford Aquamax Spring Showers 1 Gallon. It uses enzymes optimized for MAX performance to break down waste quickly.
Choose Aquamax for a campground and marina friendly solution. It meets all current regulations. Pick from liquids, dry granules, and Toss-Ins that are Bronopol Free and Formaldehyde Free.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for RV owners who need a safe way to treat waste in their tanks. It also suits boaters at campgrounds and marinas who want easy-to-use options.
Ready to Purchase?
Buying Guide
RV holding tanks can get smelly and clogged on trips. Good treatments fix these issues fast. They help keep your RV clean and fresh.
I once dealt with awful odors on a long RV trip across the country. Testing many products with fellow RV fans showed me a key treatment works best. Now my trips are odor-free and hassle-free.
- Odor Control: Pick products that stop bad smells right away. They use enzymes or formulas to neutralize odors at the source. Look for ones that last a few days per dose.
- Waste Breakdown: Choose treatments that liquify waste and toilet paper. This makes dumping easier and prevents clogs. Biodigestants are great for quick action.
- Septic Safety: Get options that are safe for septic tanks and wastewater systems. Avoid harsh chemicals that can harm the environment. Check labels for eco-friendly claims.
- Scent Options: Find a scent you like, such as orange or lavender. Strong scents mask odors while cleaning. Mild ones work for those who prefer less smell.
- Ease of Use: Opt for simple drop-ins or liquids you pour easily. No messy prep keeps things fast. Travel-friendly sizes fit well.
- Longevity: Select treatments that work up to 7 days. This means fewer applications. Saves time and money on trips.
- Packaging and Quantity: Go for packs with enough doses for your needs. 30 or 64 doses suit long drives. Price per use matters too.
- Brand and Reviews: Trust makers with good RV fan feedback. USA-made products often have extras like support. Check for tests with many users.