Water Alkalinity Adjustment & pH Down Calculator
Hydroponics, Irrigation, and Fertigation
Acid Dose & Alkalinity Neutralization Calculator
Safety Tips & Recommendations
- This calculator is a reference tool; always verify pH on-site.
- Adjust pH gradually in several steps.
- Always add acid to water, never the opposite.
- Wear gloves, goggles, and protective gear.
Example Calculation
Input data:
- Acid: Nitric Acid (HNO₃)
- Acid Concentration: 67%
- Water volume: 1000 L
- HCO₃: 180 mg/L
- Current water pH: 8.1 → Target water pH: 5.5
Result:
To lower the water pH from 8.1 to 5.5 in a volume of 1000 liters, the required dose of acid is 160.77 mL of Nitric acid 67%.This acid also contributes 35.67 ppm of the nutrient N-NO3, which is equivalent to 0.0357 kg.
(Values shown for demonstration only.)
