Watercare offers a free water advice and audit service that gives people a personalised report showing how their household can best save water.
St Johns resident Wayne Dunning received an audit.
"They were very thorough - they checked every appliance involving water and checked all the fittings."
As a result of the audit, he performed a leak test, had a flow restrictor installed in a shower and fixed a leaking tap.
Dunning uses two 1000-litre tanks to catch the run-off from part of his roof and has set up an irrigation system for his impressive vegetable and flower gardens using the collected stormwater.
As Aucklanders are being asked to save 20 litres each per day, Dunning is also using water from his tanks to fill the washing machine and toilet.
"We're doing our bit to save water. I grew up on a farm and we had tank water. I learned that water was very precious and not endless."
Five easy ways to reduce your water use
1. Cut your shower time by two minutes: Approximate saving = 16 litres
2. Turn off the tap when brushing your teeth. Approximate saving = 4 litres
3. Only run your dishwasher when it's full.
4. Only run your washing machine when it's full.
5. Use the half-flush on your toilet.
Visit the Watercare website for more ways to be waterwise.