30 Seconds
30 seconds Spray & Walk Away Moss & Algae Killer
Best low-effort solution for homeowners cleaning exterior surfaces without scrubbing.
Tackle stubborn moss, algae, mold, and lichen with 30 Seconds Spray & Walk Away. This powerful yet gentle formula is designed for easy application on various exterior hard surfaces, including roofs, driveways, and wood decks. Simply spray and let nature do the rest; no scrubbing or rinsing is required. It's safe for use around plants, gardens, children, and pets when used as directed. The biodegradable, bleach- and phosphate-free solution works over several weeks to break down unsightly growth, leaving your surfaces clean.
$24.99
Owner Satisfaction
4.5
/ 5
Category Rank
78
/ 290
#78 in Lawn & Garden
Price vs Category Average
-23%
Below average
Net Content
64.
/ Oz
Who it's for
- Busy homeowners wanting to avoid manual scrubbing and pressure washing
- Property owners seeking low-maintenance, long-term exterior cleaning solutions
- DIYers needing a versatile cleaner for multiple outdoor surface types
Who should skip it
- Impatient users expecting immediate visual results after application
- Eco-conscious gardeners and pet owners concerned about chemical runoff
- Residents living in climates with unpredictable or frequent rainfall
Performance breakdown
Application Effort
Eliminates manual labor by removing the need for scrubbing or rinsing.
Surface Versatility
Effectively treats diverse exterior materials from wood decks to concrete roofs.
Safety Profile
Gentle, biodegradable formula provides peace of mind for pets and plants.
Action Speed
Requires several weeks of patience to see full, natural cleaning results.
Chemical Composition
Bleach-free and phosphate-free solution prioritizes eco-conscious maintenance.
Treatment Efficacy
Reliably eradicates stubborn moss, lichen, and algae without harsh intervention.
Key Specs
Net Content
64 Oz.
Formulation
Ready To Use Spray
Activity Type
Post-Emergent
Biodegradability
Biodegradable
Free From
Bleach and phosphate
Features
- Kills moss, algae, mold, and lichen
- Easy spray and walk away application
- No rinsing or scrubbing needed
- Works naturally over several weeks
- Safe for use around plants and pets
- Biodegradable and eco-friendly formula
- Suitable for multiple exterior surfaces
What customers say
The defining consumer insight centers on exceptional ease of use; the spray and walk away application is genuinely time saving and eliminates strenuous scrubbing. Reliability is consistently noted, though consumers wisely advise patience, as the product works gradually over several weeks rather than instantly. This low effort effectiveness makes it a highly valued solution for maintaining large outdoor surfaces.
Know before you buy
No, scrubbing and rinsing are not required. Once you spray the product, the formula works naturally over several weeks to break down moss, algae, and lichen.
Yes, the formula is biodegradable and safe for use around plants, gardens, children, and pets, provided the product is used according to the label directions.
This product is versatile and suitable for a variety of hard surfaces, including roofs, driveways, and wood decks.
Because it works naturally, the product does not provide instant results. It gradually breaks down growth over the course of several weeks.
No, the solution is completely free from both bleach and phosphates, making it a more eco-friendly choice for exterior maintenance.
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Ready to buy?
$25