Walex Bio-Fresh Alpine Fresh Holding Tank Liq Treatment 946ml
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.
Why Choose Bio-Fresh
- Breaks down waste and all toilet paper types: Natural bacteria & paper-digesting enzymes liquefy waste and paper, eliminating the need for special RV toilet paper
- Controls odors with natural enzymes: Carefully-sourced enzymes target and eliminate odor molecules
- Maintains clean sensors, valves, and seals: Keeps your RV’s waste system in peak condition with regular use.
- Liquid format allows for easy portion control: Great for RVers who want more dosing flexibility or prefer liquids over packets.
- Safe for septic tanks and California compliant: Meets strict environmental guidelines for use anywhere you travel.
- Fresh scent and fast-acting performance: Leaves your tank smelling clean and working efficiently from the first use
- 946ml - 8 Treatments
Instructions for Use
- Black Tank - Add 120mls for up to 150lt. Add adequate water – 5lt for every 38lt of tank capacity. Adding an extra 60-240mils of Bio-Fresh is safe if desired.
- Grey Tank - Add 60-240mils of Bio-Fresh down the sink drain and follow with 5 seconds of water
We aim to have your parcel delivered as soon as possible. Sometimes, unavoidable delays can occur. If you have not received your order in the time frame provided, please get in touch with us at online@carac.com.au.
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Standard Size Shipping
- $11 Flat Rate - all states except WA (2-5 business days)
- $17 Express Rate - all states except WA (1-3 business days)
- $16 Flat Rate - shipping to WA (3-8 business days)
- $22 Express Rate - shipping to WA (2-5 business days)
Oversized Shipping
Some items are heavy and bulky, and for those oversized items with known shipping charges, we will display these rates in the checkout.
Other oversized items don't have a fixed shipping rate, so we'll provide you with a quote on the best rates and method to your location after we check with our range of specialist shipping partners.
Please read our Shipping Policy page for further details.
Returns
In order to make a return the following points must be met.
- Proof of purchase must be provided.
- Item/s must be in original and unused condition.
- All packaging must still be in original condition.
- Refunds will be issued to the original method of payment and may take several working days to show in your account.
- We will notify you when the refund has been made so that you can track funds.
- Any postage charges incurred in the original transaction will not be refunded, unless we have incorrectly supplied an item.
Online purchases
If you are not happy with your online purchase, you can return it within 30 days of the original order date. To be eligible for return, the terms as outlined above must be met.
To organise a online or in store return, please follow the steps on our Refunds & Returns page.