---
product_id: 511928208
title: "One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer"
brand: "one chem"
price: "$U10511"
currency: UYU
in_stock: false
reviews_count: 8
url: https://www.desertcart.uy/products/511928208-one-chem-5-litre-ready-to-use-spray-and-leave
store_origin: UY
region: Uruguay
---

# Long hose trigger spray included 5L ready-to-use volume Rain-activated formula One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer

**Brand:** one chem
**Price:** $U10511
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Spray, Forget, and Flaunt a Spotless Outdoor Space!

## Quick Answers

- **What is this?** One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer by one chem
- **How much does it cost?** $U10511 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/511928208-one-chem-5-litre-ready-to-use-spray-and-leave)

## Best For

- one chem enthusiasts

## Why This Product

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

## Key Features

- • **Effortless 5L Coverage:** Generous volume for extensive outdoor cleaning without constant refills.
- • **Precision Spray Control:** Long hose trigger spray ensures targeted, even application on all hard surfaces.
- • **Weather-Activated Power:** Formula reactivates with rain to continuously fight algae and mould for up to a year.
- • **Eco-Safe & Family Friendly:** 100% biodegradable and safe for children and pets once dry—clean with peace of mind.
- • **Versatile Surface Defender:** Perfect for patios, decking, fencing, driveways, and more—protects and repels future grime.

## Overview

One Chem 5 Litre Ready To Use Spray and Leave is a powerful algae, mould, and lichen remover designed for all outdoor hard surfaces. Its rain-activated formula continues working for up to a year, preventing regrowth while being eco-friendly and safe for families. The included long hose trigger spray offers precise application, making it the ultimate low-effort solution for maintaining pristine patios, decking, driveways, and fencing.

## Description

Product description One Chem Ready to Use Spray and Leave is ideal for paths, patios, driveways, steps, headstones, garden ornaments and much more. This product is designed to clean mould, algae and everyday dirt away from the affected areas and to destroy the spores which are produced by algae. This will help lengthen the time in which the algae reforms. The formula is designed to work with the outdoor elements, including wind and rain, to gradually wash away the contamination over a number of months - and can continue working for up to a year, depending on the extent of contamination. NOTE: The colour of the bottle may vary Directions Before treatment: Prepare surfaces to treat by eliminating large deposits: Scrape away thick mosses before applying the product. DO NOT APPLY if rain is expected. Do not apply the product when ambient temperature is lower than 5°C.Application method: Apply product evenly with sweeping motions, covering evenly, leave to dry. Within 2 weeks the product will show to be working, If heavily infested, reapplication may be necessary. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning Keep out of reach of children and pets while wet. See more

Review: Worked well - Worked a treat, although the trigger sprayer gave up after a couple of mins. Decanted the rest into a watering can. Probably got less coverage but it worked really well as it was more concentrated poured compared to sprayed. Will buy again.
Review: Killed the green in 2-3 days on external metal gating, mortar and wood. - So far so good. Within 2-3 days, killed it all (no green) on mortar, wood and pavement. I might buy the concentrate (if available) next time. The hose took a while to "pressurise" and come down to the soray head so persevere? 🤷

## Features

- MOULD, LICHEN & ALGAE REMOVER: This product doesn't just act as a lichen, algae and mould remover - once the substance has been removed from your desired surface, the product will also work to repel any future dirt and inhibits algae and lichen from growing, leaving your surface as good as new, just wet & forget about it
- CLEANING SUPPLIES: One Chem algae, lichen and mould killer is formulated with active ingredients designed to counteract and prevent growth. The benefit of using this formula is its efficacy during all weather conditions. For every time it rains, the formula is reactivated to help control the gunge and grime without scouring or damaging the surface that has been infested. A patio magic cleaner!
- GOOD FOR MOULD PREVENTION: The packaging of One Chem's spray and leave algae, lichen and mould remover is 100% biodegradable. It's also safe for children and pets when it's dry, so treated around don't have to be corner off. To use, simply spray on with added long hose trigger spray or with a low pressure garden sprayer or watering can.
- ONE CHEM GARDEN RANGE: One Chem garden products, agricultural equipment & supplies are produced to the highest standard. Discover our range of pressure sprayers, path and patio cleaners and black spot patio cleaners for top quality results
- ALL HARD SURFACES: Perfect For Use On Patios, Decking, Fencing, Paths, Driveways, Roofs, Sheds, Greenhouses, Garden Statues, Terracotta Pots, UPVC Windows, Boats, Caravans, Motor Homes And All Indoor & Outdoor Hard Surfaces Affected By Green Mould and Algae.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BVWFTC23 |
| Best Sellers Rank | 36,201 in Grocery ( See Top 100 in Grocery ) 3,267 in Household Cleaners |
| Coverage | green algae, lichen, and mould |
| Customer Reviews | 4.0 4.0 out of 5 stars (950) |
| Date First Available | 8 May 2019 |
| Included components | 5L Ready To Use Spray and Leave |
| Item Weight | 5 kg |
| Manufacturer | Assured Products |
| Manufacturer reference | OC9286 |
| Part number | OC9286 |

## Product Details

- **Active ingredients:** green algae
- **Brand:** One Chem
- **Item form:** Spray
- **Item weight:** 5 Kilograms
- **Liquid volume:** 5 Litres

## Images

![One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer - Image 1](https://m.media-amazon.com/images/I/61qTi9G3UJL.jpg)
![One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer - Image 2](https://m.media-amazon.com/images/I/712mRqPKawL.jpg)
![One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer - Image 3](https://m.media-amazon.com/images/I/81FEvyCg3dL.jpg)
![One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer - Image 4](https://m.media-amazon.com/images/I/71iu9OOiviL.jpg)
![One Chem 5 Litre Ready To Use Spray and Leave with added Long Hose Trigger Spray - Fencing Patio Decking Driveway - Green Algae and Mould Killer - Image 5](https://m.media-amazon.com/images/I/810sW1Tk3IL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked well
*by D***L on 29 March 2025*

Worked a treat, although the trigger sprayer gave up after a couple of mins. Decanted the rest into a watering can. Probably got less coverage but it worked really well as it was more concentrated poured compared to sprayed. Will buy again.

### ⭐⭐⭐⭐ Killed the green in 2-3 days on external metal gating, mortar and wood.
*by D***Y on 7 October 2025*

So far so good. Within 2-3 days, killed it all (no green) on mortar, wood and pavement. I might buy the concentrate (if available) next time. The hose took a while to "pressurise" and come down to the soray head so persevere? 🤷

### ⭐⭐⭐⭐⭐ Algae remover
*by M***R on 23 March 2025*

Over night result excellent. Trigger for item no good. Transferred liquid into a detergent bottle and sprayed fence. Heavy algae disappeared over night to bare wood. Excellent

---

## 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.uy/products/511928208-one-chem-5-litre-ready-to-use-spray-and-leave](https://www.desertcart.uy/products/511928208-one-chem-5-litre-ready-to-use-spray-and-leave)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-28*