--- product_id: 291393449 title: "Fresh Water Tank Sanitizer Detergent and Sanitizer Treatment" brand: "thetford" price: "418.35 DT" currency: TND in_stock: true reviews_count: 5 category: "Thetford" url: https://www.desertcart.tn/products/291393449-fresh-water-tank-sanitizer-detergent-and-sanitizer-treatment store_origin: TN region: Tunisia --- # Kills 99% harmful bacteria 2-part easy-to-use system Versatile for RVs, boats & campers Fresh Water Tank Sanitizer Detergent and Sanitizer Treatment **Brand:** thetford **Price:** 418.35 DT **Availability:** ✅ In Stock ## Summary > 💧 Keep your water fresh, clean, and ready for every adventure! ## Quick Answers - **What is this?** Fresh Water Tank Sanitizer Detergent and Sanitizer Treatment by thetford - **How much does it cost?** 418.35 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/291393449-fresh-water-tank-sanitizer-detergent-and-sanitizer-treatment) ## Best For - thetford enthusiasts ## Why This Product - Trusted thetford brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Hard Water? No Problem!:** Formulated to work even in hard water conditions without leaving grit or soap scum behind. - • **Safe & Odorless Formula:** Bleach- and chlorine-free, leaving no unpleasant taste or smell—just pure, clean water. - • **Ultimate Freshness, Anywhere:** Sanitizes fresh water tanks in RVs, trailers, campers, and boats for worry-free hydration on the go. - • **Effortless 2-Step Cleaning System:** Simple detergent and sanitizer application ensures thorough cleaning without hassle or residue. - • **Powerful 99% Bacteria Elimination:** Effectively kills Staphylococcus, E-Coli, Listeria, and other harmful microbes to keep your water pristine. ## Overview Thetford's Fresh Water Tank Sanitizer is a 2-part liquid treatment designed to clean and sanitize fresh water tanks and plumbing systems in RVs, campers, boats, and other portable water setups. It kills 99% of harmful bacteria including E-Coli and Listeria, is free from bleach and chlorine, and leaves no odor or taste. Easy to use and effective even in hard water, it ensures safe, fresh water for your travels. ## Description Thetford's Fresh Water Tank Sanitizer is an easy-to-use 2-part system designed for cleaning and sanitizing fresh water tanks and plumbing on RVs, trailers, campers, boats, water coolers, coolers, ice machines, refrigerators, ice chests, or any washable hard, non-porous surfaces. Step 1: Clean with the detergent Empty the tank and add 1 ounce of concentrated detergent solution to the fresh water tank for every 4 gallons of tank capacity. Fill the tank with water and run the diluted detergent through each faucet, shower, and water outlet for 1 minute or more. Empty the tank and rinse the faucet lines and tank by running fresh water through them. Step 2: Sanitize the water Shut off incoming water line and prepare a solution of 2 ounces of product per 8 gallons of water. Apply or circulate solution to wet all surfaces, allowing it a minimum contact of 60 seconds. Drain the solution and return to service by reopening incoming water lines. The treatment is effective even in hard water and will not leave grit or soap scum. Not a drinking water additive. Review: There’s a learning curve with the first RV. Water was one of those things. After each trip we ran the faucets until the tank was empty. Or so we thought. Turns out it’s very important to pull the plug draining the tank from below AND pull the plug to empty the water heater. We didn’t. Pretty soon our water smelled very nasty. We put bleach into the tank, drove it around to slosh it around. Still nasty. I did some research and found this product so I bought it. Followed the directions and now our water is fresh as can be. There’s zero scent to our water. Worth every penny to have a clean system. We also bought a “wand thingy” that sprays into the water heater to clean it out right before we used this product. Some sediment came out with that. I think using both this product and the sprayer are both good practices to keep everything clean. Review: We had tried a number of different solutions to get that rotten egg smell out of the water system in our camper and none of them worked long term. The smell always came back. It takes time and water of course but if you follow the directions to a "T" this will do the trick for you! No more nasty smells in our water system. I will buy this product again should we ever need it. ## Features - [VERSATILITY]: Thetford's Fresh Water Tank Sanitizer works in RVs, trailers, campers, and boats - [FUNCTIONALITY]: Cleans and sanitizes the inside of the freshwater tanks and the plumbing - [UTILITY]: Kills 99% of the harmful bacteria, including Staphilococcus, E-Coli, Listeria, and other micro-organisms - [CONVENIENCE]: Easy-to-use 2-part system for cleaning and sanitizing the fresh water tank - [SAFETY]: Free of bleach and chlorine, leaves no smell or taste ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001TIV1KA | | Brand Name | Thetford | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.5 4.5 out of 5 stars (609) | | Item Volume | 24 Fluid Ounces | | Item Weight | 168 g | | Manufacturer | Thetford | | Number of Items | 2 | | UPC | 028985366621 | ## Product Details - **Brand:** Thetford - **Has liquid contents:** Yes - **Item volume:** 24 Fluid Ounces - **Item weight:** 0.37 Pounds - **Number of Items:** 2 ## Images ![Fresh Water Tank Sanitizer Detergent and Sanitizer Treatment - Image 1](https://m.media-amazon.com/images/I/61v903G84sL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***E on 25 July 2025* There’s a learning curve with the first RV. Water was one of those things. After each trip we ran the faucets until the tank was empty. Or so we thought. Turns out it’s very important to pull the plug draining the tank from below AND pull the plug to empty the water heater. We didn’t. Pretty soon our water smelled very nasty. We put bleach into the tank, drove it around to slosh it around. Still nasty. I did some research and found this product so I bought it. Followed the directions and now our water is fresh as can be. There’s zero scent to our water. Worth every penny to have a clean system. We also bought a “wand thingy” that sprays into the water heater to clean it out right before we used this product. Some sediment came out with that. I think using both this product and the sprayer are both good practices to keep everything clean. ### ⭐⭐⭐⭐⭐ Review *by J***P on 2 August 2023* We had tried a number of different solutions to get that rotten egg smell out of the water system in our camper and none of them worked long term. The smell always came back. It takes time and water of course but if you follow the directions to a "T" this will do the trick for you! No more nasty smells in our water system. I will buy this product again should we ever need it. ### ⭐⭐⭐⭐⭐ Review *by R***. on 13 October 2024* I used this to clean and sanitize the freshwater tank of my boat. Somehow I got some odor in the 30 gal tank even using a capful of bleach. This Sanitizer freshened it right up. Just use as directed. flush system until water shows no foam. Water tank hose been fresh for 6 months now. ## Frequently Bought Together - Thetford Fresh Water Tank Sanitizer Detergent and Sanitizer Treatment, 2 x 24 oz bottles - Thetford 36662 - RV Inline Sanitizer - The Easiest way to HELP YOU disinfect your RV Fresh Water Tank, NO MESS, NO MOVING PART, just connect with the Hose and add Bleach - Camco Tastepure RV Water Filter - New & Advanced RV Inline Water Filter with Flexible Hose Protector - GAC & KDF Filtration - Made in USA - Camping Essentials for Fresh Drinking Water (40043) --- ## 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.tn/products/291393449-fresh-water-tank-sanitizer-detergent-and-sanitizer-treatment](https://www.desertcart.tn/products/291393449-fresh-water-tank-sanitizer-detergent-and-sanitizer-treatment) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-02*