Tank water which is collected off the roof through gutters and downpipes is open to various forms of contamination; from chemical pollutants in the city, through to leaves, dirt and bird, rat and possum faeces. In some areas bats and fruit trees over roof areas can pollute tank water very quickly. There are various methods for eliminating these contaminants from the drinking water. These range from boiling the water for 10 minutes through to micro-filtration and ozonation. As rain water is naturally acidic, problems with corrosion of metal pipes and fittings can also be encountered with tank water.

Common problems:

  • Bacterial Contamination
  • Parasite contamination
  • Water acidity
  • Sediment