Water Source Mixing Calculator
for Hydroponics & Irrigation
Example Water Mix Calculation
This example shows how the Water Mix Calculator estimates resulting water parameters after mixing two water sources. The calculation accounts for pH, alkalinity, EC, and major ions.
Example input data
- Water Source A: 5 L, EC: 0.2 mS/cm, pH: 7.5, Alk: 80 ppm
- Water Source B: 25 L, EC: 0.05 mS/cm, pH: 5.5, Alk: 10 ppm
Calculation result
The table below shows resulting water parameters after mixing.
| Parameter | Final value |
|---|---|
| Total volume | 30.0 L |
| pH | 5.59 |
| Alkalinity (CaCO₃) | 21.7 ppm |
| EC | 0.07 mS/cm |
| Ca | 3.8 ppm |
| Mg | 2.1 ppm |
| Na | 2.1 ppm |
• pH is calculated using logarithmic hydrogen ion mixing and alkalinity buffering.
• Alkalinity values are expressed as ppm CaCO₃, standard for irrigation water analysis.
• EC and ion concentrations are calculated using linear mass balance.
Note: This example illustrates how the Water Mix Calculator estimates resulting water parameters. Actual composition may vary depending on measured values and volumes.
Mix Your Water Accurately
Calculate pH, alkalinity, EC, and major ions for optimal irrigation
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Frequently Asked Questions
- Enter the actual pH, volume, EC, and alkalinity for each source. The calculator uses logarithmic hydrogen mixing and alkalinity buffering, providing a realistic resulting pH. Avoid linear averaging—it can give incorrect results.
