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Happy Campers RV Toilet Treatment & Holding Tank Treatment - Controls Odors, Helps Prevent Clogs, Buildup & Sensor Issues in RV Black & Gray Tanks – Supports Reliable Dumping (18 Treatments)

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Availability: In Stock.
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Arrives Friday, Jul 24
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Size: 18 Count (Pack of 1)


Features

  • Powerful RV toilet treatment and black tank odor control: Happy Campers is a concentrated RV toilet treatment, RV black tank treatment, and RV holding tank treatment that helps eliminate stubborn odors at the source. Keeps black and gray tanks fresh after every dump while supporting a cleaner, better-performing holding tank system.
  • Ultra-Concentrated RV tank treatment prevents tank problems before they start. Prevents waste from building up and sticking to holding tank walls and sensors while keeping RV waste flowing smoothly for every dump. Also works as an effective RV gray tank treatment to help keep grease, oils and sludge from creating bad tank odors.
  • Safe for RV and septic systems: Mineral-based RV septic tank treatment that is safe for black tanks, gray tanks, septic systems, travel trailers, fifth wheels, motorhomes and boats. A dependable camper toilet treatment and camper tank treatment for everyday RV maintenance.
  • Long-lasting odor control with every treatment: One scoop treats up to 40 gallons while helping control odors between dumps unlike at RV toilet enzyme that needs constant dosing. Use Happy Camper regularly as your RV tank deodorizer and black tank deodorizer once after each dump to help reduce buildup and maintain cleaner, fresher holding tanks making it an RV essential that doesn't require as many repeat doses as competitors products.
  • Designed for cleaner rv tanksnot as a rapid rv waste digester: Happy Campers is a concentrated RV tank treatment that helps control odors, reduce buildup, and support long-term holding tank maintenance. Unlike rv enzymes treatment for black tank that focus on rapid waste digestion, our mineral-based formula is designed to help keep tanks cleaner trip after trip.
  • Multi-use RV holding tank treatment: Happy Campers works as an RV toilet treatment, camper tank treatment, and marine holding tank treatment for black tanks, gray tanks, and portable toilets. Trusted for routine holding tank maintenance, dependable odor control, and cleaner tanks wherever your adventures take you.

Description

Happy Campers — Easy and Affordable Happy Campers holding tank treatments offer a powerful and cost effective solution, based on cost per treatment, for eliminating odors and breaking down waste in RV black and gray tanks. Unlike enzyme-based treatments, Happy Campers uses a mineral-based formula that works effectively even in extreme temperatures and prevents clogs without harming your plumbing. It's trusted by full-time RVers for its reliability, long-lasting results, and ability to keep tanks odor-free—even during dry camping. Happy Campers RV holding tank treatment is designed to control rv toilet and tank odors very effectively as well as making sure your tanks remain clean and in peak performance for long-term use. The key is to make sure your black and gray tanks are clean prior to using, otherwise your maintaining a tank that already has problems and this won't make you a Happy Camper. Always start with a clean, fresh tank prior to treating with Happy Campers for odor free travel. If you're experiencing recurring RV toilet or black tank odors, dirty tank sensors, heavy buildup, or flushing problems that don't improve with routine maintenance or holding tank treatments, your holding tank may need a deep cleaning. Happy Campers Extreme Cleaner is designed to remove years of accumulated residue and help restore your holding tank before returning to regular maintenance with Happy Campers Holding Tank Treatment. Use 1/4 - 1/2 Container per tank cleaning with hot water. If your tank problems continue after using Happy Campers, the treatment may not be the cause. Persistent odors, inaccurate sensors, or poor tank performance are often signs of an underlying issue such as existing buildup, inadequate water usage, a blocked roof vent, or a compacted waste blockage. Identifying the cause can help restore your tank and get you back to camping. All of these issues can usually be corrected by deep cleaning the tank, unless you have a blocked sewer vent (check). Happy Campers helps break down waste and most regular home toilet papers to support smooth waste flow and cleaner tank emptying and more comfort for your bottom. Unlike products focused on rapid liquefaction, our goal is long-term tank performance by helping reduce residue that can contribute to buildup, odors, and sensor problems. The result is cleaner tanks, easier dumping, and RV adventures without tank problems. The proof is what comes out of your tank and not left behind. Happy Campers is unlike the rest of the RV and marine holding tank treatments available. It's mineral based micronutrient treatment specifically formulated to work in extreme temperatures both cold and hot just like the places RVers travel in summer and winter. Happy Campers is formulated with a proprietary blend of natural minerals and micronutrients. It doesn't contain harsh chemicals like formaldehyde, bronopol or forever chemicals. RV and Boat waste system friendly. Septic Safe ingredients for smooth dumps and clean tanks with zero odor. Trusted by thousands of active RV owners. What is Happy Campers RV Holding Tank Treatment? Happy Campers is a highly concentrated and proprietary blend of minerals and micronutrients. It's a water-activated powder treatment designed to eliminate odors and break down waste in RV and marine black and gray holding tanks. How do you use Happy Campers Tank Treatment? Just add One scoop (or one treatment) equals 2 tablespoons after every tank dump. Use one treatment per 40 gallons of holding tank capacity. For example; if you have an 80 gallon tank, you would use 2 scoops with 5-6 gallons of water to prime tank. Is Happy Campers safe for RV plumbing and septic systems? Absolutely. Happy Campers is safe for RV plumbing and home septic systems. It contains no formaldehyde or harsh chemicals that would damage seals. What if Happy Campers Doesn't Work? We stand by our product and customers. However, if you try the treatment and still have odor problems, this is most commonly solved by adding more water or making sure to deep clean your tank prior to using the regular treatment. Does Happy Campers work in all types of campers, holding tanks, and cassette toilets? Yes. It works for all marine, RV, camper and portable tanks and toilets. For smaller tanks (e.g., a 6-gallon cassette toilet), use a reduced amount, such as 1/4 to 1/2 scoop, mixed with 1-2 gallons of water. Adjust as necessary. Because your journey deserves to be as fresh and exciting as the destinations you explore Inspired by the beauty of nature and the freedom of the open road, Happy Campers Holding Tank Treatment was born. We set out on a mission to revolutionize the way RV'ers experience waste management, creating a product that not only eliminates odors but also promotes a healthier and more sustainable lifestyle. Join the Happy Campers family and connect with fellow RV enthusiasts who share your passion for adventure.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 3.5 x 4.25 x 4.5 inches; 1.13 Pounds


Item model number ‏ : ‎ HC-18-oz


Date First Available ‏ : ‎ October 19, 2011


Manufacturer ‏ : ‎ RV Concepts


Best Sellers Rank: #187 in Automotive (See Top 100 in Automotive) #5 in RV Sewer Chemicals & Cleaners


#5 in RV Sewer Chemicals & Cleaners:


Customer Reviews: 4.7 4.7 out of 5 stars (31,435)


Item Form: Granule


Scent: Unscented


Specific Uses For Product: RV Holding Tank


Surface Recommendation: Toilet


Special Features: Compatible with black and gray holding tank systems, Concentrated mineral formula, Measured dosing scoop, Safe for RV septic seals and valve components, Tested for high-temperature RV conditions


Contains Liquid Contents?: No


Product Benefits: Controls black & gray tank odors, Helps prevent waste buildup & clogs, Promotes smooth waste flow, Safe for black, gray & septic systems, Supports cleaner tank sensors


Item Volume: 18 Fluid Ounces


Unit Count: 18.0 Count


Number of Items: 1


Item Weight: 1.1 Pounds


Size: 18 Count (Pack of 1)


Brand Name: Happy Campers


Manufacturer: RV Concepts


UPC: 186045000028


Model Number: HC-18-oz


Part Number: HC-18


Material Features: Fragrance Free


Material Type Free: Odor Free


Allergen Information: Allergen-Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • 5 year usage review.
Size: 64 Count (Pack of 1)
I have been using this product for the past 5 years, months and months of use and dozens of tank dumps. It is exceptional. I don't know how it works but it does and it works very well. 5 stars without hesitation. I add a full scoop to 3-5 gallons of water and add it to the black tank (and often the grey tank as well) prior to every use. We strictly use rv toilet paper. There is a total of 5 people using our rv toilet, myself my wife and 3 kids. We do use the RV toilet for #2, especially the kids. We have a rule where we use additional water to flush a #2. I use a black tank rinse nozzle (built into my RV) after each dump. After 5 years all of my tank sensors still work perfectly. We have never had an issue with foul smell or odor, even in hot weather. No toilet issues whatsoever. (TMI warning) I have a clear elbow which I use to dump the tanks, so I see what comes out. It looks like chocolate milk, and I don't see any noticeable solids bigger than about an inch. I never see any TP either (which means it is completely broken down). I think these results speak for the effectiveness of this product. I highly recommend it (along with degradable rv toilet paper and a little extra water with each #2 flush). ... show more
Reviewed in the United States on July 1, 2026 by Matt P.

  • Works great
Size: 18 Count (Pack of 1)
So far so good, our tank was a little smelly for the first time. Even though we always careful to put the right treatment product into our travel trailer tank. We used one scoop of the "Happy camper toilet treatment" and crossing our fingers....the smell is gone.....Great experience so far, easy to use and the container will last for a long time. Perfect item. ... show more
Reviewed in the United States on April 29, 2026 by C. Gaucher

  • No black tank odor!!!
Size: 130 Count (Pack of 1)
Before we bought Happy Camper treatment, I thought that campers always had that weird smell from the black tank, even when consistently using a black tank treatment. But now I know that the smell was because the other treatments did not do a good job. Since using Happy Camper treatment, my camper has NO BLACK TANK SMELL at all! This is the best ever! You have to dissolve it in warm water before pouring it in, or you can let it sit in cold water for a while to dissolve it. Since this is a powder, it is light weight for the volume, and this large size is a great value. The amount used per time is a small amount, so this size will last a long, long time. After you use this brand, you won't want any other kind. ... show more
Reviewed in the United States on July 16, 2026 by JVS

  • Happy Campers made this grown man cry.
Size: 18 Count (Pack of 1)
I have been living full time in my RV for about a year and a half now, and I have tried everything under the sun to fight back at the assault on my nostrils every time I flush my toilet. I’m talking heavy, toxic, nose hair burning, stomach churning stench worse than anything I have ever had the displeasure of encountering in my lifetime. NOTHING WORKED. Until now!! I’m kicking myself for waiting so long to try this product. I saw it was heavily recommended and I was a fool to set it on the back burner for so long. I’m honestly in disbelief. I had given up hope and just assumed I could never invite anyone over due to the constant embarrassing sewage smell that infested my trailer. Happy Campers has truly changed my life enough to make this grown man cry. There’s not even a hint of stink in my home now and it even cleared the dreaded pyramid that was forming in less than two days. I couldn’t be more pleased with this purchase and am happy to pay the price for such an incredible product. Thank you so much for making this camper happy!!! ... show more
Reviewed in the United States on June 21, 2026 by Ivan

  • Easy to use.
Size: 64 Count (Pack of 1)
Fast shipping, works great in our tanks!
Reviewed in the United States on July 16, 2026 by Rachel

  • Best on the market.
Size: 18 Count (Pack of 1)
Best treatment we have found by far. No odor with this stuff!
Reviewed in the United States on July 15, 2026 by Gary E. Marshall

  • The Failproof Recipe
Size: 64 Count (Pack of 1)
I've had to travel for decades for my type of work (energy industry) never had any problems until my recent purchase of a 1 yr old 5th wheel. Unit is like brand new. Obviously the previous owner failed to dump properly and had some build up. So I thought I'd share what worked for me in this situation and try to help others. From the MSDS (material safety data sheet) Happy Campers consists of Zinc salts and unnamed minerals. Worked extremely well for me in regards to cleaning up the black tank. Using product as specified. They also make an extreme cleaner for really serious problems. To keep your black tank and sensors working perfectly.... Here is what works like a champ for me, and maybe it will help you. Understand that water is your best friend for holding tanks. Just common sense follows. Each time after I dump my tanks, I take a common 5 gallon bucket and fill almost full with water. Then take 5-6 ounces of Dawn dishwashing liquid mix into. If Hard water is a problem in the area that you are at.. Add A cup of Calgon water softener. If unavailable use old fashion Borax. Pour straight into the toilet. To start your "new" tank. This only takes a few minutes and you are giving your tank a head start. The dishwashing liquid and Calgon keeps the tank walls slick and sensors clean and reading properly. Mix the Happy Camper in the bowl with water and flush and your ready to go! For a heavily sedimented tank this may take 2-3 regular cycles of dumping to clean your sensors and clean your tanks. Happy Campers product truly does virtually liquefy all solid waste and toilet tissue. I personally have never used a holding tank product that works so well. This simple method that I'm writing has worked perfectly for myself and many many others that I known and is not just a wishful thinking type deal... I promise you. It only takes 1 time of black tank problems for folks to get real interested in holding tank maintenance! Lol 1. Dump only when tanks are 2/3 or more full. I try to get mine s full as possible by adding pure old tap water if necessary before dumping. The more water will certainly always help move any sediments. 2. There has been zero odors of any kind using this method. 3. You can use any brand of toilet tissue you like using these instructions. It truly liquefys everything! 4. Has worked for myself and friends in all temperatures below zero and 110+ climates. 5. I think you'll be quite happy with the results and please pass it on to other RVers if you get the chance. 6. Sensors make take few cycles to begin reading properly and to be clean enough to read properly, but it will happen. I hope my experiences help a few folks out there. Have a good day. ... show more
Reviewed in the United States on March 15, 2015 by TheHonestTruth

  • Work greatbto eliminate odor
Size: 64 Count (Pack of 1)
It works really great! We have a sailboat and put it in our holding tank and the odor disappeared. Really good product!!
Reviewed in the United States on May 24, 2026 by Preserved Killick

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