X Nutrients Flushing Solution, 5 GallonX Nutrients Flushing Solution 5 Gallon Flushing Solution is designed to flush away fertilizer salts and residues that accumulate in a plants stems, leaves, flowers and buds. Your crops will be healthier and cleaner. General Usage: Hydroponics 1. Drain your hydroponic reservoir and fill it with clean water. 2. Use at a rate of 15ml per gallon. Do not use any other supplements or nutrients. 3. Run your hydroponic system for at least 8 hours. 4. Drain