Eco-friendly Odor Control

Fragrance-Free Natural Waste Breakdown

Enzyme-based deodorizer with commercial-strength digestive power

Walex Bio-Active® is a fragrance-free liquid holding tank treatment powered by all-natural, eco-friendly ingredients. Designed for RVers who prefer a no-scent approach, Bio-Active® breaks down waste and toilet paper using bacteria and enzymes—keeping your tank flowing freely and odor-free.

Perfect for cassette toilets and porta-potties, the tip-and-pour bottle makes it easy to measure the right dose every time. With Bio-Active®, you get reliable performance without the use of harsh chemicals.

“I have tried many products for the tanks in my RV. This one has been around for a long time and does not get the attention like a lot of newer products. My thought is if a company has been around as long as this one, there must be a reason. The product has worked great as long as you follow the recommended amounts. A very good product I would recommend!”

-Steve, Walex Bio-Active Liquid verified purchase

Key Features

• Fragrance-free, non-staining, and formaldehyde-free
• 100% biodegradable and biocide-free
• Breaks down waste and toilet paper naturally
• Lubricates valves and seals to prevent clogs
• Easy tip-and-pour dosing for all tank sizes
• Available in 40oz, 68oz, and 168oz bottles​

Instructions for Use

Empty holding tank and add water to cover bottom of tank. Pour Bio-Active into holding tank through toilet. For best results, we suggest adding 1.25 gallons of water for every 10 gallons of holding tank.