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Best rv sewer tank treatments - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Happy Campers

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

Happy Campers

$56.45

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Main highlights
- Safe for All Tanks: Happy Campers is septic and RV plumbing system safe. Can be used in any type of RV holding tank materials, our treatment is versatile and reliable.
- RV holding tank deodorizer: This RV toilet and sink treatment has no added scent and is specially designed for RV holding tanks, providing powerful and lasting odor control for both RV sewer tanks and RV gray water tanks.
- Heat-Resistant, Long-Lasting Results: Designed for hot-weather camping, Happy Campers controls odors and buildup in RV holding tanks. The concentrated mineral formula keeps tanks clean and fresh between dumps in temps above 90°.
- Effective holding tank maintenance: Helps prevent solids, sludge, minerals and crystals from building up on the inside of holding tanks preventing clogs and ensuring smooth RV holding tank operation.
- Easy to Use: Simply add the measured amount of Happy Campers to your RV holding tank, and let our formula do the rest. One scoop (2 tablespoons) treats up to 40 gallons. No mess, no fuss – just straightforward application for a worry-free adventure.
$56.45
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Happy Campers

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

Happy Campers

$28.45

More Details
Main highlights
- Smooth Waste Flow & Preventative Tank Maintenance: While other treatments focus on liquefying waste, Happy Campers keeps your RV’s black tank clean and free-flowing. Its mineral formula prevents buildup, backups, and odors for stress-free dumping every time.
- Safe for All Tanks: Compatible with all septic systems and holding tank materials, our treatment is versatile and reliable, ensuring optimal performance in any RV or marine environment.
- Multi-Use RV Tank Treatment: Works in RVs, campers, boats, and portable toilets to control odors and prevent buildup. Perfect for weekend trips or first-time RVers who want cleaner, fresher tanks wherever they travel.
- Long-Lasting Odor Control & Value: Our concentrated RV holding tank treatment delivers powerful, long-term results. Each scoop keeps black and gray tanks odor-free and buildup-free between dumps—saving you time, money, and hassle.
- Eliminates RV Tank Odors Fast: Our mineral-based formula tackles foul smells in RV, camper, and marine holding tanks. Prevents lingering waste odors and keeps your RV bathroom fresh and clean after every use.
- Easy to Use: Simply add the measured amount of Happy Campers to your holding tank, and let our formula do the rest. No mess, no fuss – just straightforward application for a worry-free adventure.
$28.45
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Unique

Unique RV Digest-It Ultra RV Toilet Treatment, 32 Uses, Super Concentrated - Eliminates Smells and Liquifies Waste, Easy-Measure Extra-Strength Preventive Bio-Enzymatic Holding Tank Treatment (32 oz)

Unique

$21.99

More Details
Main highlights
- 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.
- RV Digest-It Plus 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.
- 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.
- 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.
- 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.
$21.99
4
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Camco

Camco TST MAX RV Toilet Treatment 1-Gallon - Control Unwanted RV Sewer Odors & Break Down Waste and RV Toilet Paper - Biodegradable Septic Safe Formula - Orange Scent (41173)

Camco

$24.52

$25.99
(5% Off)

More Details
Main highlights
- 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 2 oz 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.
- Refreshing Scent: Enjoy a pleasant, long-lasting citrus scent as you're RVing without worrying about septic tank odors ruining your experience.
- Quantity: Each jug Includes 1-gallon.
- Powerful RV Black Tank Treatment: Eliminate clogs & odors in your camper/marine black water tank. This liquified RV black tank treatment 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: Camco’s TST RV toilet chemicals are proudly Made in the USA & trusted by RVers and boaters For their holding tank Treatment needs.
$24.52
$25.99 (5% Off)
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Camco

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)

Camco

$20.99

More Details
Main highlights
- 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.
- Scent & Quantity: Enjoy a pleasant, long-lasting lavender scent as you're RVing without worrying about septic tank odors ruining your experience. Each bucket includes (30) RV toilet treatment drop ins.
- Powerful RV Black Tank Treatment: Eliminate clogs & odors in your camper/marine black water tank with TST MAX. This powerful RV tank cleaner 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 RV holding tank treatment with the rest of your camping supplies.
- Made in the USA: Camco’s TST RV toilet chemicals are proudly made in the USA & trusted by RVers and boaters for their holding tank treatment needs.
$20.99

Best rv sewer tank treatments - Holiday Sale 2025

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

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

Unique RV Digest-It Ultra RV Toilet Treatment, 32 Uses, Super Concentrated - Eliminates Smells and Liquifies Waste, Easy-Measure Extra-Strength Preventive Bio-Enzymatic Holding Tank Treatment (32 oz)

Camco TST MAX RV Toilet Treatment 1-Gallon - Control Unwanted RV Sewer Odors & Break Down Waste and RV Toilet Paper - Biodegradable Septic Safe Formula - Orange Scent (41173)

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)

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