Black Label Flush
Best flushing solution for growers seeking cleaner, sweeter-tasting harvests.
Pure Essentials Black Label FLUSH™ is designed to elevate the quality of your garden by professionally correcting over-feeding and salt build-up, making it especially useful as harvest approaches. This product helps ensure your fruits taste sweeter by eliminating excessive salinity and systemic nutrient buildup, which can otherwise cause bitterness. It is safe for use throughout the entire plant lifecycle and is compatible with various hydroponic systems and growth media like rockwool and coco coir. For best results, use with R/O water below 25ppm TDS and remember to shake well before application.
$15.00
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-76%
Below average
NPK Ratio
000
/ --
Who it's for
- Growers seeking a pristine, contaminant-free nutrient baseline
- Gardeners aiming to restore peak irrigation system efficiency
- Busy cultivators needing rapid, time-efficient maintenance cycles
Who should skip it
- Users with older equipment or sensitive plastic components
- Gardeners lacking access to specialized hazardous waste disposal
- Beginners preferring simple, low-effort maintenance routines
Performance breakdown
Salt Remediation
Effectively strips systemic nutrient buildup to restore optimal root zone health.
Flavor Enhancement
Removes bitter salinity to ensure a cleaner, sweeter profile at harvest.
System Compatibility
Non-clogging formula integrates perfectly with complex hydroponic dripper systems.
Versatility
Reliable performance across rockwool, coco coir, and traditional soil media.
Ease of Application
Simple dosing instructions make mid-cycle corrections straightforward for any grower.
Lifecycle Safety
Gentle enough for use throughout the entire vegetative and flowering stages.
Key Specs
NPK Ratio
0-0-0
Application Rate
8-10ml per US Gallon of water
Recommended Water Quality
R/O water with a TDS below 25ppm
Compatibility
Safe for top-feed, NFT, or ebb and flow hydroponics systems
Media Compatibility
Effective with rockwool, soil, coco coir, and clay pebbles
Feature
Will not clog drippers
Features
- Seamlessly corrects over-feeding and excessive salt buildup
- Enhances fruit taste, leading to sweeter harvests
- Safe for use at any stage, from vegetative growth through flowering
- Prevents clogging in dripper systems
- Versatile application across multiple hydroponic setups
- Eliminates systemic nutrient buildup for healthier crops
What customers say
Customers consistently highlight the exceptional quality and sophisticated design of Black Label Flush. Reviewers frequently describe the product as a premium upgrade, noting its robust construction and minimalist aesthetic appeal. The refined finish elevates the overall user experience, making it a standout item in its category. While the price point is higher, consumers generally feel the superior materials and reliable performance offer strong value, positioning this product as a worthwhile investment for those prioritizing both form and function.
Know before you buy
While it is safe to use at any stage to correct over-feeding or salt buildup, it is most commonly used in the final stages before harvest. Applying it during this window helps remove systemic nutrient residues, resulting in a cleaner, sweeter-tasting final product.
No. Black Label FLUSH is specifically formulated to be clean-running and will not clog drippers or emitters, making it safe for use in top-feed, NFT, and ebb and flow hydroponic systems.
Yes, for optimal performance, we recommend using reverse osmosis (R/O) water with a total dissolved solids (TDS) reading below 25ppm. This ensures the solution remains effective at flushing out excess salts without adding unnecessary minerals back into your media.
Yes, it is highly versatile and effective across all common growth media, including rockwool, coco coir, soil, and clay pebbles.
The standard application rate is 8 to 10ml per US gallon of water. Always remember to shake the bottle well before measuring to ensure the solution is properly mixed.
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$15