Best RV Tank Sanitation Chemicals & Cleaners of 2026

"After struggling for weeks with a severely clogged black tank in my used travel trailer, I tried this product. Within a day, the waste cleared out completely and the tank was spotless—no more stench or build-up. I was amazed by how effectively it worked with just a single application."

"I used this in the black tank of my 5th wheel camper, which always showed as full. After following the instructions and waiting a few days, my tank sensor finally read empty and accurate. It's definitely worth the investment for keeping sensors working!"

"We had a camper that constantly gave false readings on the black tank. After using this product and letting it sit for a couple of days, the sensors started working again and even reduced the odor. Very satisfied with the results."

"After struggling with black tank sensor problems for over a year, I gave this cleaner a shot, and my sensors are finally reading accurately again. Plus, there's no odor and cleaning is hassle-free. I love that it's safe to leave in the tank for longer periods. Highly recommend for anyone maintaining their RV tanks!"

"I bought this after getting a used 5th wheel with a neglected black tank, and honestly, the improvement was immediate. The tank odor disappeared, and the sensors started working again. It's also super simple to use—just pour it in and let it work. I’m sticking with Unique over other brands because I want clean, not just fragrance."

"My used RV had a slow-draining black tank, but after using this cleaner, it cleared out all the blockages and the tank flushed perfectly. I was amazed by how well it broke up everything inside. Works exactly as described."

"I've tried several RV toilet treatments, but this one truly stands out. It completely eliminates odors and breaks down waste efficiently, making our RV trips much more comfortable. I also appreciate that it's concentrated and biodegradable, so a little goes a long way and it's safe for our septic system. Highly recommended for any RV owner!"

"With a kitty in our RV and a tiny bathroom, I'm glad to have a lavender-scented option that keeps our tank clean and odor-free. The bottle never leaks and it's easy to use. Plus, I love catching sales, and the team is always on top of great deals. Well worth the price!"

"After a major clog in our black tank, this product dissolved the blockage when nothing else worked. Within a few days, the tank was draining perfectly and everything was clean. It absolutely does what it's supposed to do—this stuff works!"

"After several months with this product, I've found it to be incredibly effective and straightforward to use. I just drop a pod in, add water, and let it work. My tank is now clean, odor-free, and my sensors are reading accurately again. It's become an essential part of my RV maintenance routine."

"We struggled with our black tank sensors always showing two lights, no matter how much we cleaned. After using this product, we finally saw the sensor drop to one light, meaning the stubborn buildup was gone. No issues since—I definitely recommend it."

"I had false readings in all my holding tanks and tried this product at the end of the season. It didn’t work overnight for one tank but did the trick after letting it sit longer in the others. So, it works, but sometimes you need to give it more time."

"I’ve tried many brands in our Thetford toilet as a truck driver, and this is by far the best for breaking down solids and controlling odor in small spaces. The pods hold up well during long trips and Amazon delivery to lockers makes restocking super convenient."

"I use this in my 'Luggable Loo' on fishing trips. It’s simple to use and works well for daily deodorizing, but if you’re expecting one packet to last for multiple days or handle a large tank, it might not be enough."

"While the product is effective, the strong scent reminds me of classic toilet bowl deodorizers. If you prefer a more subtle or scent-free experience, this might not be ideal."

"I'm really impressed with how this product completely eliminates odors, even on hot days, making my RV so much more comfortable. The scent isn't overpowering, and I've finally found a toilet treatment that truly works!"

"After trying several brands, I found this one to be far superior at getting rid of bad smells in both the black and gray water tanks. It's easy to use, and I highly recommend it for anyone wanting a better camping experience!"

"I love how this treatment actually works as advertised, keeps my RV fresh, and offers a great scent. I've noticed a big difference since switching and haven't had any issues with odor at all."

"I've been full-timing in my RV for years and this product is a must-have. I use it every time I dump and rinse, and I've had zero odors or clogs. It's super reliable—I highly recommend it."

"After struggling with a used 5th wheel with build-up in the black tank, I started using Happy Camper as directed. With some water, Dawn, and occasionally Calgon, my tank has stayed fresh and my sensors are reading better. It even works in extreme temperatures—no odors, sensors clean, everything liquefied. Seriously, it's the best solution I've found."

"This is probably the best RV treatment I've used. Just one scoop is all it takes—no harsh chemical smell, no odors, and it keeps the tank clean even on hot days. The container lasts a long time, so it's very cost-effective."

"I've tried several products, but these pods are by far the best solution for keeping our RV tanks smelling fresh. They’re so simple—just drop one in and you’re good to go. Odor is way down, and cleaning up is much easier. I highly recommend them to other campers."

"We’ve been using these for a while now and I’m really impressed. Everything gets broken down perfectly, even toilet paper, and there are no clogs when dumping. The light green color shows it’s working, and I’ll definitely be purchasing again."

"The pods are easy to use and work efficiently for odor control, but the scent is a bit strong for my liking. Still, they help keep things manageable in our camper."

"I've tried several products on my old RV, but this solution finally got my tank sensors working again and tackled all the odor issues. Every RV owner should have this—it's a game changer."

"I used this after having inaccurate tank readings, and after a proper soak and rinse, my sensors are finally back to normal and the tank is much cleaner. Highly recommend it!"

"I wish I'd read the directions before buying. You can't use this in freezing conditions and you need to fill your tank with water, which doesn't work for my small camper. Just a heads up for others in similar situations."

"I've tried a bunch of black tank cleaners, but this one is truly the best at cleaning sensors and eliminating foul odors in my RV. Even after a week in hot weather, there's absolutely no stink when we return, and the sensor always reads empty. If you follow the instructions, you'll be amazed just like I was!"

"All the Liquefied products we've used have been totally worth it—they really work as promised. As part-timers, using these regularly keeps our tanks clean and completely odor-free, which is a must for us!"

"This is fantastic for cleaning gray tanks—I've used it on both the kitchen sink and the shower/sink tanks. Breaks down waste well and I never notice any odors when dumping. Highly recommend!"