Can I use Dawn or another detergent in my holding tanks?

Your RV’s holding tanks are basically large, plastic boxes. Detergent, like Dawn, should be avoided in black tanks (it’s hard to not have it in your gray tanks!) as it can reduce the slipperiness of plastic holding tank surfaces over time. As the tank’s surfaces become less slippery, waste will have a tendency to stick to them. This is especially true if you are using an enzyme, biological, or harsh chemical that breaks down waste into a thick, sticky, pancake batter-like mess.

Jim & Debbie Tome, Owners

Hi, we're Jim and Debbie Tome and we're the owners of Kleen Tank LLC, the nationally-recognized and largest professional network of RV tank cleaning service provider.

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, we've seen just about every situation there is with RV holding tanks and waste systems.

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