General Hydroponics pH Down – 1 Gallon

Precision pH Adjustment for Hydroponic and Soil Systems

General Hydroponics pH Down is a concentrated acid formula made with food‑grade phosphoric acid, engineered to gently reduce the pH of your nutrient solution when it becomes too high. Its reliable performance allows growers to maintain optimal pH levels for nutrient uptake and plant health. :contentReference[oaicite:1]{index=1}

Simply add a small amount, wait 15‑30 minutes, then retest the pH. Typical adjustment rate is 1 to 2 mL per gallon in many systems, although actual needs may vary based on nutrient strength, water quality and system size. :contentReference[oaicite:2]{index=2}