Happy Campers RV Toilet Treatment 18 - Extra Strength Odor Eliminator for Black and Gray Holding Tanks
Condition: New
Buy Now, Pay Later
As low as
$7
/ mo
Learn more
- – 4-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
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.
View our full returns policy here.
Availability:
In Stock.
Arrives
Friday, Aug 29
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:
Friday, Aug 29
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
This is good stuff, help to eliminate the smells, works great. Easy to use and one will last the summer season. Clear color and would recommend you to give it a try.
Reviewed in the United States on July 5, 2025 by nzcrnut
Pretty darn good. We have only used this one time so far but I am pleased with it. We have tried several different black tank additives, drop ins, etc. and this one seems to do the job the best. I didn't notice the big clumps of toilet paper like usual when draining. Odor was non existent. I also added some to the gray tank. First time in a long time I got the sensors to read completely empty in both tanks! That in itself is worth it.
...
show more
Reviewed in the United States on August 6, 2025 by BrianB
Since we bought our travel trailer in 2021 whenever we would move it, it would smell. It recently got to the point where it started to smell when parked at our seasonal site without moving it so I gave this a try. It was effective after one use. We just took a trip and put it to the test after moving the camper and again no smell once we got back to our seasonal site! I cannot recommend this product enough. It was worth every penny!
...
show more
Reviewed in the United States on August 5, 2025 by Tracy Wolfgang
Whoever says this stuff doesn’t work, is crazy! Usually when I flush I get an odor (Only on the hottest days). But I did a Happy Camper treatment and immediately I didn’t smell anything, even within the bowl! Awesome stuff, easy to use! I did have to dig a little for the scoop but it says that it might be at the bottom on the package.
...
show more
Reviewed in the United States on June 25, 2025 by Kristi Killam
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
This stuff is amazing. We had a very bad odor coming from our camper. I put 3 scoops in there for the initial dose and did not smell odor the rest of the camping trip!
Reviewed in the United States on August 4, 2025 by sheli murphy
This product is amazing, no smell even in high heat, we use regular TP., no more expensive RV TP.
Reviewed in the United States on July 19, 2025 by T. Bell
Easy to use.
Reviewed in the United States on July 24, 2025 by Lynn Smock