Introduction
If you’re tired of scrubbing away green slime, black mould, or stubborn lichen from patios and driveways, you’ve probably come across Genie Just-Wet 5 L Outdoor Cleaning Solution. But how effective is it?
This guide takes a close look at what it does, how to use it properly, and how it compares to other outdoor cleaning products.
Product Overview
| Feature | Detail |
|---|---|
| Product Name | Genie Just-Wet 5 L Outdoor Cleaning Solution |
| Purpose | Removes mould, lichen, algae, and black mould from outdoor surfaces |
| Formula Type | Bleach-free, non-acidic |
| Dilution Ratio | 1 part concentrate to 5 parts water |
| Coverage | Up to approximately 300 m² per 5 L container |
| Surfaces | Suitable for patios, decking, fences, roofs, concrete, stone, and outdoor furniture |
| Application | Spray and leave — no need for scrubbing or pressure washing |
This cleaner is designed to simplify outdoor maintenance. Instead of heavy scrubbing or harsh chemicals, it offers a “spray and walk away” approach that works gradually over time.
How It Works
Genie Just-Wet targets mould, algae, and lichen at the source. The active formula penetrates and breaks down organic growths, allowing rain and weather to rinse them away naturally.
Because it’s bleach-free, it’s gentle on coloured or porous materials that might otherwise become discoloured. The product also leaves behind a residual barrier that helps reduce regrowth — keeping surfaces cleaner for longer.
What Makes It Good
1. Easy to Use
Simply mix, apply, and let nature do the rest. There’s no need for scrubbing or rinsing in most cases.
2. Cost-Effective Coverage
One 5 L bottle can make up to 30 L of working solution, covering a large area — ideal for driveways, patios, and larger outdoor spaces.
3. Gentle on Surfaces
With no bleach or acid, it’s safer to use on decking, wood, tarmac, painted walls, and other delicate materials.
4. Long-Lasting Protection
Unlike quick-acting bleach products, Genie Just-Wet continues working for weeks and helps prevent regrowth.
5. Low Effort, High Reward
For property owners who prefer minimal labour, this cleaner is a low-maintenance solution that delivers steady, noticeable results.
What to Watch Out For
No outdoor cleaner is completely perfect. Here are a few things to keep in mind before using Genie Just-Wet:
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Not Instant: It’s designed to work gradually over days or weeks, not immediately.
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Heavy Growths May Need Help: Extremely thick moss or old stains might need a light brush or a second application.
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Weather Dependent: For best results, apply on a dry day with no rain forecast for at least 6 hours.
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Re-treatment Required: The protective barrier eventually fades, so reapplication every 6–12 months may be needed.
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Use Safely: As with any chemical product, wear gloves and avoid contact with skin, eyes, and nearby plants.
How to Use Genie Just-Wet Effectively
To get the best possible results, follow these simple steps:
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Prepare the Area
Sweep away loose dirt, leaves, and debris so the cleaner can fully reach the surface. -
Mix the Solution
Dilute 1 part Genie Just-Wet with 5 parts water. Stir or shake well. -
Apply Evenly
Use a garden sprayer or watering can to apply the mixture evenly across the surface. For vertical areas, start from the bottom and work up. -
Let It Work
Leave the area untouched. The product will begin breaking down mould and algae within 24 hours, with full results visible over 1–3 weeks. -
Check Progress
If stubborn patches remain, repeat the treatment or lightly brush affected areas. -
Maintain Regularly
Reapply every few months to keep patios, paths, and fences free from green growth.
What Results to Expect
Most users see early changes within the first couple of days — light patches fading and algae losing colour. Over the next few weeks, the surface continues to brighten as the product works deeper into the growth.
After around three weeks, patios and driveways often look refreshed, cleaner, and brighter without any heavy lifting or scrubbing.
Pros and Cons Summary
| Pros | Cons |
|---|---|
| Easy “spray and leave” method | Takes time to show full results |
| Gentle on outdoor surfaces | May need repeat use for heavy growth |
| Excellent coverage and value | Not suitable for immediate cleaning jobs |
| Helps prevent regrowth | Requires safe handling during application |
| No harsh bleach smell | Dependent on weather conditions |
How It Compares to Other Outdoor Cleaners
Many patio and mould removers rely on bleach or acids to act fast. While that can give instant results, it often risks surface damage or fading. Genie Just-Wet works slower but more safely — ideal if you prefer to preserve the colour and finish of your surfaces.
Its key advantage is longevity. Rather than giving a short-term fix, it helps keep outdoor areas clean for longer with minimal effort.
Final Verdict
So — how good is Genie Just-Wet 5 L Outdoor Cleaning Solution?
In short, it’s a reliable, low-effort option for homeowners looking to clean mould, algae, and lichen without using harsh chemicals. While it won’t deliver instant results, it provides excellent long-term cleaning power and surface protection.
It’s best suited for regular maintenance and prevention rather than deep, one-time cleaning of very heavy growth. If you’re patient and consistent, it can deliver impressive, lasting results.
Quick Summary
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✅ Bleach-free and gentle on surfaces
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✅ Up to 300 m² coverage per bottle
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✅ Helps prevent future mould and algae
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✅ Simple spray-and-leave application
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✅ Works gradually over time for long-term cleanliness
Ready to refresh your outdoor spaces?
Get your Genie Just-Wet 5 L Outdoor Cleaning Solution today and enjoy a cleaner, brighter patio with less effort. - https://www.homechem.co.uk/products/genie-just-wet-outdoor-cleaning-solution-mould-lichen-algae-remover-black-mould-remover-bleach-free