pH in borehole water

pH in borehole water at 25 degC


≥ 5 and ≤ 9.7

If your water pH is above 7.7 it is time to act.

We would assist and help you to solve the problem.

The pH in borehole water.

  • The water pH is one of the most common water quality tests performed.
  • The pH indicates the sample's acidity but is actually a measurement of the potential activity of hydrogen ions (H+) in the water sample.
  • The pH measurements run on a scale from 0 to 14, with 7.0 considered neutral.
  • Solutions with a pH below 7.0 are considered acids.

What is pH?

  • The pH is a determined value based on a defined scale.
  • That is similar to temperature.
  • This means that the pH of water is not a physical parameter that can be measured as a concentration or in a quantity.
  • The measurement is a figure between 0 and 14.
  • This defining how acidic or basic a body of water is along the logarithmic scale.
  • The lower the number, the more acidic the water actually is.
  • The higher the number, the more basic it is.
  • Water with a water pH of 7 is considered neutral.
  • On the logarithmic scale it means that each number below 7 is 10 times more acidic than the previous number when counting down.
  • When counting up above 7, each number is 10 times more basic than the previous number.


If you want to know more about the pH of water. Please click on the ph.



pH Value of borehole water.

  • The degree of the acidity or the alkalinity of a solution like borehole water is measured on a scale (“pH-scale”) of 0 to 14.
  • The midpoint of 7.0 on the pH scale represents neutrality.
  • A neutral solution is neither acid nor alkaline.
  • Values below 7.0 indicate acidity.  
  • Values above 7.0 indicate alkalinity.
  • PH value is very important for water treatment systems.
  • When the pH of the water is low it will cause corrosion on water systems and pipelines.
  • If the water pH is high it will cause scaling on the membrane and lower the efficiency of the membrane.

Dissolved carbon dioxide in borehole water.

  • Dissolved carbon dioxide in water increases as the pH value of the borehole water.
  • The Reverse Osmosis membrane cannot filter out dissolved CO2; it can eliminate the alkalinity in the water.
  • Therefore the pH value of the water that flow through is higher than the feed water and the pH value of the concentrate or waste water is higher.



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  • The pH of water indicates whether water is acidic or alkaline.
  • A pH = 7 is neutral, while values < 7 is progressively more acidic and values > 7 is progressively more alkaline.
  • The pH of water does not have direct consequences except at extremes.
  • It largely determines the solubility and availability of many plant nutrients and potentially toxic ions.
  • Soil is much more strongly buffered against changes in pH than is water.
  • Except in extreme conditions irrigation water will cause soil pH to change slowly with time and does not present a problem in itself over the short term.
  • Extreme pH conditions in irrigation water can be corrosive or scale-forming to some of the components used in irrigation equipment.