RV Black tank treatment

If you’re an RV enthusiast, then you know that keeping your black tank clean and breaking down the waste is essential to enjoying your travels. That is why you need the best RV black tank treatment.

There are a lot of black tank treatment products on the market and it can be hard to know which one is the best to buy.

We’ve done the research for you.

Here are five of the best RV black tank treatments. These products will help keep your black tank clean and hopefully, clog-free – so you can focus on having fun while traveling and not your black tank!

We are reader supported and as such we may receive a small commission at no expense to you by purchasing thru our links.

What is the Best RV Black Tank Treatment?

Best Overall: Happy Campers RV Holding Tank Treatment

Happy Camper RV holding treatment
Happy Campers Holding Tank Treatment

The Happy Campers RV Holding Tank Treatment is the best product on the market for your black tank treatment. We had heard a lot about this one but were happy with the previous tank treatment chemicals we were using. But we decided to give it a try. It has been great and we have had zero issues at all. We are seasonals and use our camper every weekend.

The Happy Camper is very good at breaking down the solid waste in your RV holding tanks. It’s odor-free, cost-effective, and works great. This is definitely the best RV holding Tank treatment we have used.

Standard benefits:

  • Keeps your black tank clog and odor free by breaking down the solid waste and toilet paper.
  • Highly concentrated tank treatment – one scoop will treat a 40-gallon black tank.
  • Eliminates odors in the RV holding tank.
  • Performance is not affected by extreme hot or cold temperatures.

Runner Up: Camco TST MAX RV Toilet Treatment Drop-IN

Camco TST rv Black tank treatment
Camco TST Max

Camco TST Max RV toilet treatment drop-in is a fantastic product for your RV Black tank treatment. This was always our go-to until we tried the Happy Camper. This is a close second, and if I can’t get my hands on Happy Camper I gladly use the Camco TST.

Its concentrated formula makes it ultra-effective, and it’s approved for use in RVs and marine vessels. Plus, the fresh scent will help prevent those nasty odors that can occur in your RV holding tanks.

Standard benefits:

  • Eliminates odors and helps break down solid waste in the RV holding tank
  • Just 1 Drop-IN tank treatment pod works with up to a 40-gallon tank
  • Does not contain the toxic, formaldehyde-releasing ingredient bronopol
  • Fresh citrus scent
  • The concentrated formula makes it ultra-effective.
  • It’s approved for use in RVs and marine vessels.

Third Place: Unique RV Digest-It Black Holding Tank Treatment

Unique RV Digest-it

If you’re looking for an RV holding tank treatment that is both effective and safe, then Unique RV Digest-it is a solid tank treatment product. This black tank treatment breaks down human waste and all brands of toilet paper, helping to prevent pyramid plugs and tank clogs. It also contains no formaldehyde or bronopol, making it a safer choice for you and your family.

  • Breaks down human waste and all brands of toilet paper
  • Prevents the stubborn holding tank issue pyramid plugs
  • Contains no formaldehyde or bronopol
  • Eliminates awful camper sewer smell at its source
  • Makes dumping easier and more effective
  • Maintains clean, functioning tank sensors

Fourth Place: Walex Bio-Pak RV Black Holding Tank Deodorizer and Digester

Walex RV tank treatment
Walex Drop In

The Walex Bio-Pak RV Black Holding Tank Deodorizer and Digester is a nice treatment that works well. It deodorizes and breaks down waste and paper, it has an advanced enzyme formula that helps break down the waste, and it’s a septic tank friendly effective treatment.

We like the pre-packaged portion control packets, so there’s no measuring or pouring required – just drop one in the tank and go!

Standard benefits:

  • No need for special toilet paper (although I still would).
  • Offers a unique combination of waste-breakdown performance and portion control convenience.
  • It will break down the toughest toilet paper brands.

Fifth Place: Aqua-Kem RV Holding Tank Treatment

Aqua Kem Rv holding tank treatment
Aqua-Kem Toss-Ins

Aqua-Kem RV holding tank treatment is a solid solution. When I first started camping, this is what I used. It worked well, but I did have a couple of issues with some slight clogging. Overall, it is a solid product, but we would have the occasional issue. However, Aqua-Kem quickly and effectively eliminates odors, prevents most clogging, and breaks down waste material reasonably well. Aqua-Kem is also 100% biodegradable and safe for you and your RV.

Standard Benefits

  • Helps prevent black tank odors
  • Good at dissolving solid waste
  • Breaks down toilet paper
  • Powerful waste tank deodorant
  • 100% biodegradable and safe for you and your RV

What Are The Benefits of RV Black Tank Treatments?

The advantages of an RV black tank treatment are clear. Not only can they help keep your tank clean and odor-free, allowing you to really enjoy your trips, but they also help prevent clogs and build-up in your tanks. On top of that, these treatments are biodegradable and environmentally friendly, giving you peace of mind when using them.

  • Keeps black tank clean and odor-free
  • Prevents clogging and build-up in tanks
  • 100% biodegradable and safe for you and your RV

What about my Grey Tank?

To keep your RV’s grey tank clean and free of odors, regular cleaning and maintenance is imortant. There are various treatments available to help maintain its condition. Additionally, it’s recommended to flush the tank with water on a consistent basis for optimum performance.

Frequently Asked Question

Question: What should I put in my RV black tank?

Answer: You should put toilet paper, waste, RV holding tank treatments and water in your RV black tank. When you’re done traveling, you can use a hose to rinse out the tank. It’s also a good idea to use a cleaner or deodorizer to keep your tank in good condition.

Question: How do you deodorize a black tank on an RV?

Answer: You can use a number of different products to deodorize your RV’s black tank. Many of these products are easy to use and biodegradable, so they’re safe for both you and your RV.

Question: What is the best way to clean an RV black tank?

Answer: The best way to clean your RV’s black tank is to flush it with water and use a cleaner or deodorizer. These products will help keep your tank clean and odor-free. Some people like to dump a bunch of ice down the toilet bowl and fill with some water and a cleaner. Then, drive around for a little bit to let it all swish around the tank walls and tank sensors. Head over to the dump station, connect your sewer hose and drain it.

Question: Do I need chemicals for an RV black tank?

Answer: You don’t necessarily need chemicals, but they can help keep your black tank clean. I always use one and find it as some additional insurance to eliminate potential headaches. For a relatively low cost, I think it is completely worth it.


Choosing the right product to treat your RV’s black tank is key for a stress-free time out on the road. From our experience and user reviews, we’ve outlined five of the best RV black tank treatments available so you can pick the one that will keep your black tank clog and odor-free. That way, you can focus on soaking up all the fun and memories from your trip without worry!

I use a treatment every single time. No matter what. To me, its just not worth the risk of clog. Plus, the smell. So I toss one in no matter what.