Bio-Fresh RV Black Tank Treatment

Liquefies waste & paper

Natural bacteria & carefully-sourced enzymes eliminate clogs & odor

Available in Alpine Fresh and Ocean Mist

Bio-Fresh® is Walex’s most advanced natural black tank treatment with a combination of beneficial bacteria and digestive enzymes designed to liquefy waste and control odors. The powerful formula starts working instantly to break down waste, eliminate odors, and liquefy toilet paper—without the use of harsh chemicals.

Ideal for RVers who prefer a pour-in solution, Bio-Fresh® is safe for septic systems and campground approved. Continued use keeps your black tank sensors clean and your plumbing system running smoothly.

Available in Alpine Fresh and Ocean Mist fragrances. Each fragrance available in 32oz, 64oz and 1-gallon.

DEALERS:

These products are available for resale through your preferred RV or Marine distributor.
Contact your distributor directly to check availability, pricing, and ordering details.

"I hit the holding tank in my motor home with a double dose and it cleared the odor right out. I will also pour some in the hose that goes from the holding tank to the sewer which tends to smell when in use on a hot day. It definitely took care of the smell which is why I got it so A+. I will buy it again."

"Super happy with this product for my trailer's holding tank. Really easy to pour down the toilet and smells great too. No noticeable clogs or anything. Seems to break down TP great! Good price for how well it works."

Why Choose Bio-Fresh

Natural bacteria & paper-digesting enzymes liquefy waste and paper, eliminating the need for special RV toilet paper
Carefully-sourced enzymes target and eliminate odor molecules
Keeps your RV’s waste system in peak condition with regular use.
Great for RVers who want more dosing flexibility or prefer liquids over packets.
Meets strict environmental guidelines for use anywhere you travel.
Leaves your tank smelling clean and working efficiently from the first use

Instructions to Use

Black Tank: Add 4oz for up to 40 gallons. Add adequate water - 1.25 gallons for every 10 gallons of tank capacity. Adding an extra 2-4oz of Bio-Fresh is safe if desired. Grey Tank: Add 2-4oz of Bio-Fresh down the sink drain and follow with 5 seconds of water.