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 (18 Treatments)
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
In Stock.
Arrives
Monday, Apr 20
Size: 18 Treatments
Features
- 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.
- Smooth Waste Flow & Preventative RV Black Tank Maintenance: Unlike enzyme RV tank treatments that over-liquefy waste, Happy Campers is a mineral-based RV black tank treatment that promotes smooth waste flow while helping prevent buildup, clogs, and recurring RV holding tank odors. Keeps RV black tanks cleaner and dumping more reliable.
- Long-Lasting RV Holding Tank Odor Control: This concentrated RV black tank treatment provides reliable, long-term odor control between dumps. Each scoop treats up to 40 gallons, helping keep black and gray tanks odor-free, reduce buildup, and maintain smooth waste flow throughout your RV holding tank system. Perfect for winterization or long-term RV storage.
- Safe for All RV & Marine Holding Tanks: Compatible with RV black tanks, gray tanks, septic systems, and common holding tank materials. This mineral-based RV toilet treatment is safe to use in travel trailers, fifth wheels, motorhomes, and marine sanitation systems.
- Easy RV Tank Treatment Application: Add the measured amount of Happy Campers to your RV black tank with water after dumping. Simply add this treatment to water and flush down rv toilet or sink to treat RV black or gray tanks. Simple application for routine RV holding tank maintenance between dumps.
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: #366 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 (31,140)
Item Form: Granule
Scent: Unscented
Specific Uses For Product: RV Holding Tank
Surface Recommendation: Toilet
Special Features: Concentrated
Contains Liquid Contents?: No
Item Volume: 18 Fluid Ounces
Unit Count: 18.0 Ounce
Number of Items: 1
Item Weight: 1.13 Pounds
Brand Name: Happy Campers
Manufacturer: RV Concepts
UPC: 186045000028
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:
Monday, Apr 20
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 18 Treatments
This is by far the best toilet treatment ever !!! No odor and works fantastic.
Reviewed in the United States on March 16, 2026 by mattie cat
Size: 64 Treatments
My first trip to Burning Man involved trailer camping in the desert, and by the end of the week my septic smelled like a full-on porto. For my second trip, I tried Happy Camper and it was amazing. No stink at all, even in the heat. It is incredibly easy to use and kept everything fresh for the entire week. I will never use anything else. If you camp in a trailer or RV in hot weather, or really anytime, this is essential. 🫶
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Reviewed in the United States on March 2, 2026 by EGK
Size: 18 Treatments
This stuff works awesome. No complaints at all. No smells
Reviewed in the United States on March 6, 2026 by holly frasier
Size: 64 Treatments
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.
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Reviewed in the United States on March 15, 2015 by TheHonestTruth
Size: 64 Treatments
Works great ; no smell and breaks down everything
Reviewed in the United States on November 28, 2025 by Marilyn Beers
Size: 64 Treatments
I have been using this product for 4 years of full time RV living. It has been so great. My wife 100% notices a smell creeping in when I don’t use it after flushing the tank. I like that there is no smell when using this product. Whereas the popular gel packets more or less just cover the smells with a scent leaving your rv smelling more like a port-a-potty. I believe that it breaks down the waste effectively and makes dumping the black tank much easier.
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Reviewed in the United States on February 12, 2026 by R.O.A.M_free
Size: 18 Treatments
Great for cleaning and keeping black tank smell away!! Highly recommend
Reviewed in the United States on March 29, 2026 by Ali
Size: 64 Treatments
The perfect black tank treatment! We had problems with other brands not working. This product works perfectly! It lasts a long time and is in powder form which makes it easier to use. It dissolves easily and makes clean outs easy!
Reviewed in the United States on March 27, 2026 by Brian