---
product_id: 38825583
title: "- (Once-A-Year) Septic Tank Treatment | 1 Year Supply | 3-Part Concentrate Live Bacteria, Carbon & Enzyme Treatment | Odor Neutralizer | Cleans Septic Lines & Improves Drain Field Absorption"
brand: "down john"
price: "€ 121.48"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/38825583-once-a-year-septic-tank-treatment-1-year-supply-3
store_origin: HR
region: Croatia
---

# All Natural 3-Part Concentrate Live Bacteria - (Once-A-Year) Septic Tank Treatment | 1 Year Supply | 3-Part Concentrate Live Bacteria, Carbon & Enzyme Treatment | Odor Neutralizer | Cleans Septic Lines & Improves Drain Field Absorption

**Brand:** down john
**Price:** € 121.48
**Availability:** ✅ In Stock

## Summary

> 💰 Save money, breathe easy, and go green!

## Quick Answers

- **What is this?** - (Once-A-Year) Septic Tank Treatment | 1 Year Supply | 3-Part Concentrate Live Bacteria, Carbon & Enzyme Treatment | Odor Neutralizer | Cleans Septic Lines & Improves Drain Field Absorption by down john
- **How much does it cost?** € 121.48 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/38825583-once-a-year-septic-tank-treatment-1-year-supply-3)

## Best For

- down john enthusiasts

## Why This Product

- Trusted down john brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Odor-Free Living:** Say goodbye to unpleasant smells and backups!
- • **Once-a-Year Wonder:** Just one application for a full year of freshness!
- • **Eco-Friendly Formula:** Binds toxins and reduces greenhouse gases!
- • **Revitalize Your System:** Revives plugged systems and enhances absorption!
- • **Save Big on Maintenance:** Slash pump-out costs and avoid costly repairs!

## Overview

The Down John (Once-A-Year) Septic Tank Treatment is a powerful 3-part concentrate designed to maintain your septic system with just one application per year. This all-natural treatment contains live bacteria, carbon, and enzymes that eliminate odors, prevent backups, and improve drain field absorption while also reducing harmful toxins and greenhouse gases.

## Description

Down John (Once-A-Year) Septic Tank Treatment | 1 Year Supply | 3-Part Concentrate Live Bacteria, Carbon & Enzyme Treatment | Odor Neutralizer | Cleans Septic Lines & Improves Drain Field Absorption

## Features

- Saves hundreds on pump-out costs and potential thousands on system repair.
- Eliminates odor and backup. Use it only once a year.
- Revives plugged systems and leach lines.
- Healthy septic tank bacteria lasting over a year.
- All natural. Binds and removes harmful toxins. Reduces green house gases. Eliminates nitrates.

## Product Details

- **Brand:** DOWN JOHN
- **Scent:** Odorless
- **Item Weight:** 13 Ounces
- **State of matter:** Liquid
- **Product Benefits:** Eliminates Odor, Revives Plugged Systems, Removes Sludge, Dissolves Grease, Improves Drain Field Absorption

## Images

![- (Once-A-Year) Septic Tank Treatment | 1 Year Supply | 3-Part Concentrate Live Bacteria, Carbon & Enzyme Treatment | Odor Neutralizer | Cleans Septic Lines & Improves Drain Field Absorption - Image 1](https://m.media-amazon.com/images/I/517-M9JmoVL.jpg)

## Frequently Bought Together

- Down John (Once-A-Year) Septic Tank Treatment | 1 Year Supply | 3-Part Concentrate Live Bacteria, Carbon & Enzyme Treatment | Odor Neutralizer | Cleans Septic Lines & Improves Drain Field Absorption
- Septic Tank Treatment - 1 Year Supply of Septic Safe Dissolvable Easy Flush Live Bacteria Packets (12 Count) - Best Way to Prevent Expensive Sewage Backups - Made in USA
- Roebic K-570-Q 32-Ounce Leach And Drain Field Opener Concentrate - Environmentally Friendly and Biodegradable Solution

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**Shop now:** [https://www.desertcart.hr/products/38825583-once-a-year-septic-tank-treatment-1-year-supply-3](https://www.desertcart.hr/products/38825583-once-a-year-septic-tank-treatment-1-year-supply-3)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-24*