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Happy Campers

Happy Campers RV Toilet Treatment 18 - Extra Strength Odor Eliminator for Black and Gray Holding Tanks

    • Based on 14,076 reviews
Condition: New
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$28.45 Why this price?

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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.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 1
Order within 20 hours and 52 minutes
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Features

  • Powerful Odor Control: Say goodbye to unpleasant odors with our powerful formula that neutralizes and eliminates foul smells, leaving your RV smelling fresh and clean.
  • Effective Waste Digestion: Happy Campers breaks down waste and toilet paper quickly and efficiently, preventing clogs and ensuring smooth tank operation.
  • Long-Lasting Performance: Our concentrated formula means a little goes a long way. A single treatment provides lasting results, saving you money and hassle.
  • 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.
  • 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.
  • Versatile Application: Ideal for use in RVs, boats, and portable toilets. Wherever your journey takes you, Happy Campers will keep your sanitation system operating at its best.

Brand: Happy Campers


Item Form: Granule


Scent: Unscented


Specific Uses For Product: RV Holding Tank


Material Feature: Fragrance Free


Manufacturer: ‎RV Concepts


Brand: ‎Happy Campers


Item Weight: ‎1.13 pounds


Product Dimensions: ‎3.5 x 4.25 x 4.5 inches


Item model number: ‎HC-18-oz


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎HC-18


Special Features: ‎Concentrated


Date First Available: October 19, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 1

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • No smell and a clean tank.
This is a 5 star product. Just add each time you drain the black water tank and no problems. No funky smells ever. No perfume or chemical smell. Just ALWAYS cover your toilet donut with approximately 2 inches of water.
Reviewed in the United States on April 3, 2025 by James
    • What sorcery is this stuff?!?
I don’t know what they put in this stuff, but it is the best toilet chemical deodorizer I have ever used. We have had an RV for over 20 years now, and have tried everything. I kept hearing about this, but held off because of the cost. We had a situation come up where we couldn’t dump our black tank for 2 weeks. This happened a year ago as well, and we used the chemicals from the big box store back then. We added twice the amount called for to keep odors down, and the odors were soooooo bad after two weeks! It took us at least a month to finally get the odors out. So, when this same situation came up, we were desperate, and decided to buy this. We used overnight shipping so we could get the chemicals in there fast. After two weeks, I entered my camper’s bathroom, expecting to smell at least a little odor. Nope! I shook my head in disbelief as I opened the toilet seat, expecting to faint because of the odor. Not one odor vapor was to be found! Zero stench! Zero! In conclusion, this stuff is pricey, but ohhhhhh so worth it if you find you can’t dump your tank for a few weeks. I am totally sold! ... show more
Reviewed in the United States on August 4, 2024 by P. Morris
    • Works great
We've been in an RV full time for 7 years, Happy Camper is the best stuff we've ever used. Solids are completely broken up and there's never any smell.
Reviewed in the United States on March 7, 2025 by Amazon Customer
    • THIS is the tank treatment solution you want!
Amazing product! I live full time in a fifth wheel camper and was previously using Bio-Pak tabs for black tank treatment; they worked decently, but this powder? Whole other level. I dump the black tank once weekly on Sunday, prefill the freshly emptied tank with about 4 gallons of water and one Happy Campers treatment before resuming regular use, and have no odor come back up through the toilet until Friday or Saturday. The odor that does come up is still much less offensive than when I was using Bio-Pak. Even dumping the tank is less smelly and faster, as it breaks down everything very efficiently. Happy Campers may seem more expensive than brands upfront, but per treatment it's only about 10 to 15 cents more (on average) than less effective competitors - WELL worth it! If you want true odor elimination, a faster dump time, and a cleaner black tank, Happy Campers is the product you want. ... show more
Reviewed in the United States on November 4, 2024 by s.patterson
    • Does not work for Porta Potti
Initially i bought happy campers treatment to be used for my thetford porta potti 365. i only use the porta potti for no. 1 and only needed to be emptied around once a week. previously i use walex porta pak so i tried switching to happy campers treatment because everybody was singing praises about this product but unfortunately for me, happy campers treatment is unable to cover the odor because i could always smell urine whenever i use the porta potti and by the end of the week where i empty the waste tank, it reeks horribly :( i am not sure if my dosage is not enough or is it because the previous usage of walex porta pak has some residues remain that lower the effectiveness of happy campers but the waste tank smell horrible at the end of the week when i empty it. i tried cleaning the tank and give another shot but the smell is still bad and emptying it at the end of the week is horrible. after reading that happy campers treatment requires oxygen and does not do well in airtight environment like a porta potti, i guess i will stick back to walex porta pak for my waste tank. so i started using happy campers treatment for my grey tank instead and to my surprise, it works amazingly well! usually my grey tank will smell bad at the end of the week but ever since using happy campers treatment, the grey tank has no smell at all. it's a miracle and emptying my grey tank is a breeze now. ... show more
Reviewed in the United States on February 11, 2024 by Quanfu
    • Great product
Great product, works well without the fake stinky flowers smell. Highly recommend
Reviewed in the United States on March 19, 2025 by M Polenz
    • Worth the money
We bought this product after buying our camper and the first time we used our camper you could smell the sewage bad! So we bought this to give it a try and it’s amazing! Don’t smell anything complete game changer. Probably be ot
Reviewed in the United States on April 13, 2025 by Lila Kempf
    • Keeps tank from clogging
To ensure the proper functioning of your RV's black water tank, it is recommended to pre-fill it with approximately five gallons of water before use. This helps to create a sufficient liquid base, which facilitates the efficient breakdown and disposal of waste. By taking this simple step, you can help maintain the cleanliness and longevity of your RV's plumbing system, making your camping experience more comfortable and hassle-free. ... show more
Reviewed in the United States on February 10, 2025 by Robert Gaines

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