pH is a measure of the intensity of the acidity or alkalinity of water on a scale of 0 to 14, with 7 being neutral. The acceptable range for pH is 6.5 to 8.5.

The pH of well water can be affected by.

  • Natural geologic conditions of ground or lake water.
  • Acid rain.
  • Mining or other industrial waste.
  • Low levels of calcium –magnesium in rock formation or soil.

Signs of Acidic water

  • Corrosion of fixtures of water appliances.
  • Leaks or pinholes in plumbing, noticeable by blue-green corrosion.
  • Blue/green staining on sinks, tubs and toilets.

Health Effects

A pH less than 6.5 is not a health risk by itself: however corrosive water can dissolve heavy metals (copper, aluminium, lead) these metals may lead to increased concentrations of these metals in drinking water which can cause health concerns.


Water with low pH can be treated using a pH neutralizer filter.

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