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Copper Corrosion Correction

VWTS have encountered copper corrosion in pipes with nearly all types of water supply.  It has been seen with;

  • Metropolitan Melbourne water
  • Rain water
  • Bore water
  • River water

Copper in drinking water can be unpleasant and the stains a nuisance.  It most cases it is manageable so contact VWTS for help.

Call VWTS on 0467 958 770 or email via our CONTACT PAGE (Link to CONTACT US)

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About Copper Corrosion Correction

Copper corrosion can be easily detected visually and in worse cases by taste. Visually copper may be seen by blue stains/water in basins, showers, sinks and even in a glass of water. The water may also be cloudy. The taste threshold for copper is typically in the range 1 – 5 mg/L with water having a metallic or bitter taste. Since copper can make water unpleasant to drink it is unlikely that people would drink water with copper levels that could affect heath. Information published in the Australian Drinking Water Guidelines 6 2011 state that;

Based on health considerations, the concentration of copper in drinking water should not exceed 2 mg/L.

Based on aesthetic considerations, the concentration of copper in drinking water should not exceed 1 mg/L.

Copper corrosion can occur due to;

  • Water resting in pipes for a period of time (most of us have observed the distinctive often unpleasant taste of water from taps in parks, sporting ovals and schools)
  • Slowly leaking taps over a long period of time
  • Aggressive water, water with low pH and hardness

Where is it found?

In our industry it is typically seen with rain water stored in plastic tanks, when water has been treated, or when the pH of the water supply has dropped.  In most cases the best way to solve the problem is to buffer the pH and hardness of the water, especially in domestic situations.  For cases where large amounts of water are used chemical dosing may be necessary.

Adjusting the pH through a vessel is an attractive option as it is simple mechanically and chemically.  It will adjust the pH and also the hardness of the water.  We believe our systems provide a good solution and has benefits over others in the market.

References

Australian Drinking Water Guidelines 6 2011, Version 3.3 Updated 2016

Call VWTS on 0467 958 770 or email via our CONTACT PAGE (Link to CONTACT US)

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