You’ve watched the YouTube videos and have heard from countless other RVers that you need to stop using those “other” tank additives. Yes, Kleen Tank’s tank additive recipe is a great strategy, but what else can you do to keep your RV’s tanks clean?


We say it all the time: The worst tank cleaning jobs we do are the ones where the RVers have been using tank additives that break down, dissolve, or liquify what’s inside the waste holding tanks. Why is that?

These traditional, commercially-available tank additives are doing exactly what they are intended to do — break down waste. But in doing so, your RV’s holding tanks become septic tanks containing thick, sludgy, and sticky waste that is impossible to get out completely just by emptying your tanks or using an onboard spray/rinse system.

Customers using these types of tank additives are shocked at what our process will get out. Sometimes years of built up gunk that prevent tank sensors from reading properly, emit horrid odors, and reduce the tank’s capacity and even cause clogs.


Besides using a lot of water in your tanks, Kleen Tank’s tank additive is a great solution to keeping your RV’s waste holding tanks clean and working perfectly. Of course, we recommend that you have a professional tank cleaning FIRST, as simply starting with our tank solution is only making a bad situation (your dirty tanks) mildly better.

Here’s how to make the Kleen Tank tank solution:

  • Get a clean, empty one-gallon jug or bottle with a cap
  • Pour in 8 ounces (one cup) of Calgon Bath Pearls in the gallon jug or bottle. We recommend these over Calgon bath beads or liquid, but those are fine if you can’t locate the Bath Pearls.
  • Pour in 40 ounces (5 cups) of Pine-Sol in the gallon jug or bottle. The Original scent is fine, but we prefer either the lemon or new, blue Ocean Wave.
  • Carefully fill the remaining space in the one gallon jug or bottle with water. Go slowly to reduce foaming.
  • Put the cap on the gallon jug or bottle and give it a gentle shake to thoroughly mix the contents.

Dispense this tank solution as follows:

  • For RV holding tanks that are 40 gallons or less, put one-half cup (four ounces) down your toilet and the same amount down the shower and/or galley sink. Follow with two to three gallons of water to wash the solution down into the tanks.
  • For RV holding tanks that are 45 gallons or more, put one cup (eight ounces) down your toilet and the same amount down the shower and/or galley sink. Follow with two to three gallons of water to wash the solution down into the tanks.


Our Kleen Tank tank solution does a great job when used in new or professionally-cleaned waste holding tanks. If your RV has been used more than a few months, you’re a second owner, or you’ve been using some commercially-available tank additive, schedule a service with one of our Kleen Tank Authorized Dealers to get your tanks “factory Kleen.”

Our tank solution is great, but there’s no better way to use it than in a completely cleaned tank.

Jim Tome, Owner

Jim Tome, Owner

Hi, I'm Jim Tome and, along with my wife, Debbie, the owners of Kleen Tank LLC, the national leader in RV holding tank cleaning service. We've been RVers like you since 2004 and have traveled all over the U.S. in our Airstream travel trailer. We started the business about twelve years ago and have cleaned tens of thousands holding tanks in thousands of RVs. From tiny weekend travel trailers to monstrous fifth wheels to luxurious motorhomes, I've seen just about every situation there is with RV holding tanks and waste systems. I hope you enjoy our articles; I try to post at least one per week and we've got a great library of them to cover just about every problem. Enjoy!


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