---
product_id: 22000254
title: "Thetford RV Tissue Digester, 19 oz - Thetford 15844"
brand: "thetford"
price: "€ 40.01"
currency: EUR
in_stock: true
category: "Thetford"
url: https://www.desertcart.hr/products/22000254-thetford-rv-tissue-digester-19-oz-thetford-15844
store_origin: HR
region: Croatia
---

# 100% biodegradable Works with RVs & boats Breaks up tissue clogs Thetford RV Tissue Digester, 19 oz - Thetford 15844

**Brand:** thetford
**Price:** € 40.01
**Availability:** ✅ In Stock

## Summary

> 🌊 Keep your tanks flowing and your adventures going!

## Quick Answers

- **What is this?** Thetford RV Tissue Digester, 19 oz - Thetford 15844 by thetford
- **How much does it cost?** € 40.01 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/22000254-thetford-rv-tissue-digester-19-oz-thetford-15844)

## 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

- • **Clog-Busting Power:** Specially formulated to dissolve tissue build-up and keep your drain lines flowing freely.
- • **Build-Up Prevention:** Prevents stubborn residue on tank walls and drain lines, extending system life.
- • **Eco-Friendly Formula:** 100% biodegradable and safe for all waste treatment systems—clean with a conscience.
- • **Versatile & Reliable:** Perfect for RVs and boats, ensuring hassle-free maintenance wherever you roam.
- • **Universal Tank Compatibility:** Effortlessly cleans both black and grey water tanks for ultimate convenience.

## Overview

Thetford RV Tissue Digester is a 19 oz biodegradable liquid designed to dissolve tissue build-up and prevent clogs in black and grey water tanks of RVs and boats. It maintains clean drain lines, prevents residue build-up on tank walls, and is safe for all waste treatment systems, making it an essential maintenance product for mobile living.

## Description

Thetford's Tissue Digester is specially formulated to dissolve tissue build-up. The 100% biodegradable liquid works with both black and grey water tanks, on RVs or boats.The Tissue Digester prevents build-ups and restores the operation in the drain lines and is safe for all waste treatment systems.Highlights:VERSATILITY: Thetford's Tissue Digester is designed to work with RVs and boatsFUNCTIONALITY: Breaks up tissue-causing clogs and keeps drain lines clean and flowing freeUTILITY: Specially formulated to prevents build-ups on tank walls and drain linesCONVENIENCE: Formulated to work with grey or black water tanksSAFETY: Tissue Digester is 100% biodegradable, safe for all waste treatment systems

## Features

- [VERSATILITY]: Thetford's Tissue Digester is designed to work with RVs and boats
- [FUNCTIONALITY]: Breaks up tissue-causing clogs and keeps drain lines clean and flowing free
- [UTILITY]: Specially formulated to prevents build-ups on tank walls and drain lines
- [CONVENIENCE]: Formulated to work with grey or black water tanks
- [SAFETY]: Tissue Digester is 100% biodegradable, safe for all waste treatment systems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000GPO6FO |
| Best Sellers Rank | #107,852 in Automotive ( See Top 100 in Automotive ) #68 in RV Sewer Chemicals & Cleaners |
| Brand | Thetford |
| Customer Reviews | 4.4 4.4 out of 5 stars (502) |
| Date First Available | June 15, 2004 |
| Item Weight | 1.18 pounds |
| Item model number | 15844 |
| Manufacturer | Thetford |
| Manufacturer Part Number | 15844 |
| Model | RV/ Boat Tissue Digester for Black and Grey Holding Tanks |
| Position | Outside |
| Product Dimensions | 1.8 x 1.19 x 7 inches |
| Special Features | Biodegradable |

## Images

![Thetford RV Tissue Digester, 19 oz - Thetford 15844 - Image 1](https://m.media-amazon.com/images/I/51qq988D9bL.jpg)

## Questions & Answers

**Q: How much and often should I use in our tank?**
A: I follow the directions. I place about a tablespoon into the tank ,just after flushing,with use every day. If you have a clog, wait till the temperature is warm ,and empty ( the tank outlet must be closed) I leave it for as long as needed depending on the clog. I used an old wire hanger to agitate the tank to help move the contents and enable to penetrate the contents , and digest the clogs. Be patient with the clogs, but use often and you will not have problems.

**Q: Will this clean out the sewer drain when toilet paper gets stuck in there?**
A: it will help desolve some...but it will not do the complete job of opening it up.....do NOT leave that the drain line open all the time!.  Keep it closed till the tank needs emptying.  The water and chemicals you have put in, keeps the paper etc soft and will not get hard and block your lines..

**Q: Can this be used in home septic systems?**
A: It says on the bottle, specially designed to dissolve tissue in holding tanks.  It is granular when I squeeze the bottle from the outside.  I dont think it would work for a septic system.  No where on the bottle does it say that is a use for the product.

**Q: Does it work with the blue stuff?  If not, do you have to rinse the tank until it’s all clear?  Then how long does it have to sit? Can we use tank?**
A: I use use it along with the blue stuff. Turns the tissue into liquid. Dump your tank as you normally would and add again.

---

## 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/22000254-thetford-rv-tissue-digester-19-oz-thetford-15844](https://www.desertcart.hr/products/22000254-thetford-rv-tissue-digester-19-oz-thetford-15844)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-09-21*