Grotek Final Flush is formulated to remove excess salt from growing media to ensure a cleaner tasting harvest. Plants tend to absorb excess nutrients and store them in plant tissues. By purging nutrients from the root zone, plants are forced to convert accumulated salts into secondary metabolites that improve harvest quality. The result is a top quality harvest with the flavor and aroma you expect. Flushing with water only removes dissolved nutrients, whereas Final Flush contains powerful solubilizers that liquefy and remove precipitated and absorbed nutrients. To address nutrient imbalance or salt accumulation, apply Final Flush mixture liberally to the top of the container and allow any excess solution to drain out the bottom. Repeat a second time if necessary and then wait one week before resuming a regular feeding program. Key Features: Knocks salts away from plant roots Mitigates damage from over-fertilization Brings out natural flavors Check out other Grotek Final Flush Flavors:Final Flush Green Apple, Final Flush Grapefuit, Final Flush Blueberry Application Rate:1L makes 500L of solution.