41L-1-az Support

Flush-It 2-in-1 RV Toilet Bowl Cleaner and Black Tank Treatment. Unique Camping + Marine Flush-It 2-in-1 RV Toilet Bowl Cleaner and Black Tank Treatment. Unique Camping + Marine

Quick Help

How It Works

Flush-It 2-in-1 RV Toilet Bowl Cleaner and Black Tank Treatment

Flush-It is the first and only 2-in-1 RV toilet bowl cleaner + black tank treatment! With Flush-It, you can save time and stress by doing two jobs at once:

  1. Remove debris, stains and odors from your RV toilet bowl
  2. Treat your black tank to prevent odors, waste buildup, and ensure properly reading sensor probes

Flush-It is designed to be dropped into your RV toilet bowl where it begins to work fast with surface cleaning micro-scrubbers that deliver a shiny toilet bowl. Then, flush your toilet and sit back while Flush-it moves through your black tank, delivering billions of specialized bacteria and targeted enzymes throughout the tank to prevent odors, waste buildup, and clogs! We recommend that you use Flush-It at the beginning of every camping trip and every time you dump your tanks (ideally every 3-5 days) to ensure fresh-smelling toilets and problem-free tanks.

With Flush-It, you can expect sparkling bowls and problem-free black tanks.

Having problems? We can help!

Man in a blue t-shirt covers his nose because of pungent smell. Unique Camping + Marine
Read The Guide

My Black Tank Stinks

Sewer smells from your black tank can make RVing unbearable and embarrassing. Eliminate persistent black tank odors with Flush-It.

If you are still battling black tank smells after treating with Flush-It, the answer is usually simple: use more water. The overwhelming majority of people who contact us are able to solve their odor problems by simply increasing the amount of water they use with each flush.

Learn More
Person wearing gloves using a plunger to remove a clog from an RV toilet.
Read The Guide

I’m Getting Clogs And Waste Buildup in My Black Tank

Our blends of bacteria and enzymes are stronger and more effective than any other products on the market and nothing will break down solid waste better than our treatments - we mean that! If you are experiencing waste buildup inside your black tank it’s likely you are doing something that is causing that to happen.

Learn More
RV toilet stains and odors from plastic RV toilet. Unique Camping + Marine
Read The Guide

My Toilet Bowl Has Stains And/Or Odors

RV toilet bowls can be tricky. Stains and odors can become a problem for a number of reasons that only RVers would understand. Solve it with Flush-It.

Learn More

Frequently Asked Questions

Contact Our Customer Support Team

Still Need Help? Contact Us!


Monday - Friday
9am - 3pm MST
Email: support@uniquemm.com
Phone: (866) 662-4513

What Does The Number On The Back Of The Bottle Mean?


The Unique Method Product Categories The Unique Method Product Categories

Unique Camping + Marine holding tank treatments make it easy for you to maintain clean, clog- and odor-free holding tanks. The Unique Method is a proven holding tank treatment process that was developed through in-depth conversations with campers and virtually eliminates all problematic tank odors, prevents clogs and pyramid plugs, and ensures that tank sensors continue to read properly. Just refer to the back of the bottle for instructions.

Search