It is recommended to test every year, if not every six months.
Reasons for testing your water:
If your water supply is private, ie. comes from a well in your garden then routine well water tests should be carried out regularly
If you have recurring incidents of gastrointestinal illness within your family
Pregnant women, babies and young children are especially at risk from exposure to contaminants
If you move to a new property
If you suspect contamination ie. through smell or discoloring. Do you see blue or red stains in the sink, bathtub or clothes?
If water leaves scaly residue on plumbing and fixtures
If household appliances or water supply equipment don’t appear to be working properly or wear rapidly
If Health & Safety regulations require that specific water tests are carried out regularly
Factors that require further testing:
- Pesticides as well as Nitrates & Nitrites as levels may vary due to seasonal changes ie. in the intensity of agriculture
- Lead: test for lead at different times in a day as lead levels can vary depending on water usage (they are highest when water has been sitting in the pipe for a while)