--- product_id: 506940065 title: "Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack" brand: "walex" price: "€ 23.69" currency: EUR in_stock: true reviews_count: 12 category: "Walex" url: https://www.desertcart.hr/products/506940065-walex-bio-pak-black-holding-tank-deodorizer-and-waste-digester store_origin: HR region: Croatia --- # Ocean Mist scent Septic-safe & eco-friendly Advanced enzyme formula Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack **Brand:** walex **Price:** € 23.69 **Availability:** ✅ In Stock ## Summary > ♻️ Keep your tank fresh, your journey smooth, and your footprint light! ## Quick Answers - **What is this?** Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack by walex - **How much does it cost?** € 23.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/506940065-walex-bio-pak-black-holding-tank-deodorizer-and-waste-digester) ## Best For - walex enthusiasts ## Why This Product - Trusted walex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Odor-Free Adventures:** Ocean Mist scent neutralizes odors without overpowering chemical smells - • **Eco-Conscious Formula:** Septic system-safe and campground-friendly for guilt-free outdoor living - • **Swift Waste Breakdown:** Powerful enzymes liquefy waste & toilet paper for smooth tank operation - • **Effortless Maintenance:** Water-soluble drop-in tabs keep pipes, valves, and seals clog-free with minimal effort - • **Universal Tank Compatibility:** Effective for tanks from 2.5 to 40 gallons—perfect for RVs, boats, and portable toilets ## Overview Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins use a cutting-edge enzyme formula to rapidly break down waste and toilet paper, eliminating odors with a refreshing Ocean Mist scent. Designed for tanks between 2.5 and 40 gallons, these septic-safe, water-soluble tabs maintain your RV or marine holding tank’s performance while being environmentally responsible. Trusted since 1987, Bio-Pak ensures hassle-free sanitation for every adventure. ## Description Tired of battling unpleasant odors and struggling with clogged black tanks? Look no further than Bio-Pak enzyme RV and marine holding tank deodorizer, your ultimate solution for a pristine RV or marine experience. Bio-Pak RV and marine toilet deodorizer is the ultimate marine toilet cleaner, camper tank deodorizer, portable toilet deodorizer, and black tank deodorizer for RVs and boats. Our formula contains powerful enzymes that not only control odors but also efficiently break down paper and waste. Our innovative, water-soluble tabs are designed for your convenience. Simply drop one in, and Bio-Pak RV and boat toilet cleaner starts working immediately without any messy spills. Continued use helps pipes, valves, and seals stay working smoothly. Bio-Pak marine and RV black tank pods are environmentally responsible. Our septic system-safe formula breaks down naturally and is campground friendly, ensuring you leave a minimal footprint on the outdoors. Don't let unpleasant odors and clogs spoil your journey. Upgrade your RV or boat with Walex Bio-Pak RV black holding tank deodorizer drop-ins and waste digester. Review: Great Product - I bought a tiny teardrop trailer in January and set off knowing nothing. Into the California desert where temps in March hit 100 or close to it more than once. P U. These are amazing. I wish these were available in 50 pacs--the blue ones in the 50 pac do not get well reviewed. These are expensive for my budget but an absolute necessity. I have a small holding tank. Things got pretty bad pretty fast. I threw one in immediately and there was improvement. After dumping and closing seal--did another with about 2 gallons of water. About halfway full holding tank (i'm guessing) was stinky again so tossed in another. And another after dumping. after a couple of cycles like that with two per tank, I am now fine with only one per tank. Caveat--left nearly empty tank with bio pak in it for 3 days and returned. Stinky. Best to keep the whole system moving. When connected to city water I take showers long enough to fill up gray tank quickly and then release sewage (does not need to be full), then release gray water tank in a big whoosh to help the sewage clear the hose. This may all be obvious to most people reading this, but sure wish i'd known ahead of time. Awesome Product. I truly love the smell. It is very clean and pretty and does not smell overly chemical or lysol like. Review: Yes! It works! Camping potty savior - I am in a remote off grid cabin and have a little camping potty for overnight needs. I have been using it for over a year and never put chemicals or anything but soapy water in it to clean it. But now despite not ever going number 2 in it, it had gotten really stinky to the point that every time I opened the lid to use it, it would stink up the bathroom. I was skeptical but decided to toss one in (with a little water) after cleaning as usual. I am happy to say my potty doesn’t stink up the bathroom anymore. Smiley face! The pouch dissolved quickly and the ‘alpine’ scent is pleasant although not what I expected as a pine scent. But still even though it’s not the alpine I wanted, it still smells clean and fresh. Highly recommended. ## Features - NATURAL WASTE BREAKDOWN - Swiftly breaks down waste and stubborn toilet paper, keeping your holding tank sensors working effectively and system running smooth. No need for RV-grade toilet paper. - ENZYME HOLDING TANK DEODORIZER - Bio-Pak marine and RV holding tank deodorizer tabs contain powerful enzymes that liquefy waste and tackle unpleasant smells. Just drop it in, non-staining color. - VERSATILE FOR ALL TANKS - Our marine and RV tank deodorizer for black tanks cleans tanks from 2.5 gallons - 40 gallons. Ideal for RVing, boating, boondocking, and portable camping toilets. - OCEAN MIST 10 PACK - Say goodbye to embarrassing odors with our marine and RV drop ins for toilets. Plus, our boat and RV toilet deodorizer is septic system-safe and campground-friendly. - MADE IN USA - Walex has been a global leader in developing and manufacturing premium odor control and sanitation products since 1987. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BRYGD8YP | | Best Sellers Rank | #2,814 in Automotive ( See Top 100 in Automotive ) #14 in RV Sewer Chemicals & Cleaners | | Brand Name | Walex | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.6 4.6 out of 5 stars (9,293) | | Included Components | Walex BIOOCEANBG Bio-Pak Ocean Mist | | Item Form | Packet | | Item Type Name | Walex BIOOCEANBG Bio-Pak Ocean Mist | | Item Volume | 1 | | Manufacturer | Walex | | Material Features | Natural | | Number of Items | 1 | | Scent | Ocean Mist | | Special Features | Liquefies all types of toilet paper, Removes odors and breaks down waste and paper | | Specific Uses For Product | Toilet | | Surface Recommendation | Toilet | | UPC | 742693115349 | | Unit Count | 10.0 Count | ## Product Details - **Brand:** Walex - **Item Form:** Packet - **Material Feature:** Natural - **Scent:** Ocean Mist - **Specific Uses For Product:** Toilet ## Images ![Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack - Image 1](https://m.media-amazon.com/images/I/81c3vLCkFDL.jpg) ![Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack - Image 2](https://m.media-amazon.com/images/I/71SN+3gv4lL.jpg) ![Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack - Image 3](https://m.media-amazon.com/images/I/71OYCmmeMVL.jpg) ![Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack - Image 4](https://m.media-amazon.com/images/I/71PfJrNvCuL.jpg) ![Walex Bio-Pak Black Holding Tank Deodorizer & Waste Digester Drop-Ins - Advanced Enzyme Formula for Rapid Breakdown of Waste & Paper, Removes Odors & Cleans Tank, Ocean Mist, 10-Pack - Image 5](https://m.media-amazon.com/images/I/7165vzW3DmL.jpg) ## Available Options This product comes in different **Size, Scent** options. ## Questions & Answers **Q: Can it be used in portable camping toilet?** A: You an use these bio-paks when you have a holding tank in your rig. It needs water to activate. **Q: How much does oe packet treat?** A: One packet goes in the toilet when you empty your black tanks. We have a 40 gallon I believe, and there are 2 of us in the 5th wheel, usually dump once per week. Make sure to put lots of water in your tank after you empty it. At least 3 gallons. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product *by S***Y on April 12, 2017* I bought a tiny teardrop trailer in January and set off knowing nothing. Into the California desert where temps in March hit 100 or close to it more than once. P U. These are amazing. I wish these were available in 50 pacs--the blue ones in the 50 pac do not get well reviewed. These are expensive for my budget but an absolute necessity. I have a small holding tank. Things got pretty bad pretty fast. I threw one in immediately and there was improvement. After dumping and closing seal--did another with about 2 gallons of water. About halfway full holding tank (i'm guessing) was stinky again so tossed in another. And another after dumping. after a couple of cycles like that with two per tank, I am now fine with only one per tank. Caveat--left nearly empty tank with bio pak in it for 3 days and returned. Stinky. Best to keep the whole system moving. When connected to city water I take showers long enough to fill up gray tank quickly and then release sewage (does not need to be full), then release gray water tank in a big whoosh to help the sewage clear the hose. This may all be obvious to most people reading this, but sure wish i'd known ahead of time. Awesome Product. I truly love the smell. It is very clean and pretty and does not smell overly chemical or lysol like. ### ⭐⭐⭐⭐⭐ Yes! It works! Camping potty savior *by D***S on November 10, 2024* I am in a remote off grid cabin and have a little camping potty for overnight needs. I have been using it for over a year and never put chemicals or anything but soapy water in it to clean it. But now despite not ever going number 2 in it, it had gotten really stinky to the point that every time I opened the lid to use it, it would stink up the bathroom. I was skeptical but decided to toss one in (with a little water) after cleaning as usual. I am happy to say my potty doesn’t stink up the bathroom anymore. Smiley face! The pouch dissolved quickly and the ‘alpine’ scent is pleasant although not what I expected as a pine scent. But still even though it’s not the alpine I wanted, it still smells clean and fresh. Highly recommended. ### ⭐⭐⭐⭐⭐ Works well with out added chemicals *by R***L on August 9, 2018* Excellent product. I highly recommend it. Manages oder well and turns everything to liquid for draining, with out chemicals that cannot be removed in the sewage treatment process. We initially had minor odor issues, but have realized that with any cleaner all fans sucking out air from the camper will suck out air form the toilet into the camper. We also realized that the Thetford toiled provides a helpful sealing action when flushing. So in addition to using this or any product: turn off all of the out take fans and close the lid when flushing. I It seems to work well for 5 to seven days, the maximum I wait before emptying the tank. If temperatures are 95 and above for several days you may want to use Porta-Pak a chemical based produce. Finally, a note on the use of bio-pad and cleaning agents: Bleach based products and many other chemical based products will kill the enzyme that is the basis of this product. I use Green Works and this seems to be friendly enough. I use other products to clean the toilet just before I dump. I suspect that some to the less positive reviews may relate to this issue. If you are not going to use "chemical" bast agents you have to use similar cleaners. Most additives on the market will reduce the odor associated with raw sewage, but none willl make it smell like a bed of flowers. This product does a great job and it will not have to be removed during sewage treatment. (In most cases they are not removed, just diluted.) Nor will it harm septic systems. (A final note: When talking with manufactures about sented products they note that the scents are for the customers when they open the package. The scents are totally lost when the product is sent into the tank.) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/506940065-walex-bio-pak-black-holding-tank-deodorizer-and-waste-digester](https://www.desertcart.hr/products/506940065-walex-bio-pak-black-holding-tank-deodorizer-and-waste-digester) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-13*