The Christchurch City Council is calling on citizens to conserve water this summer to ensure the water supply runs more smoothly.
“Every summer when temperatures rise, we see household water demand rise sharply as people water gardens and lawns,” Christchurch City Council’s Head of Three Waters, Gavin Hutchison, says.
“When temperatures soar, we struggle to get water through the pipes and into reservoirs fast enough. If reservoirs drop too low, water pressure across the network falls, and that’s a real concern for firefighting capability.
“If we put water restrictions in place in the city, it won’t be because we’re running out of water; it’ll be because we need to ease the pressure on the water supply network.”
Those in the Banks Peninsula region are asked to take extra care. “Summer puts real pressure on our smaller stream-led water supply networks in places like Akaroa, Takamatua and Duvauchelle.”
Hutchison says the Christchurch City Council expects average or below-average rainfall and strong northwest winds this year, so everyone should do their bit.
“Being thoughtful about how much water you’re using will reduce the chance of water restrictions later in the season.”
Water your garden smarter
The biggest water savings in summer often come from changing how you water outdoors. that sprinklers are the biggest culprits.
They use more water than most people realise. Instead, use a handheld hose or watering can so you can control exactly where the water goes.
Watering at the right time also matters — aim for early morning or later at night (before 7am or after 9pm) to reduce evaporation.
Most gardens don’t need watering daily either; watering every second day for a few minutes is often enough to keep plants healthy without putting unnecessary strain on the network.
Stop wasting water at home
Indoor water use adds up quickly across thousands of households, especially during hot spells when overall demand is already high.
Simple habits can make a noticeable difference, such as shortening showers to five minutes or less, running only full loads in the dishwasher and washing machine, and turning the tap off while brushing your teeth or doing dishes.
These are small changes, but they reduce pressure on the supply system and help keep water available when it’s needed most.
Reduce outdoor water use
If you want the fastest way to cut water use, lawn watering is the first place to start.
Letting lawns go brown over summer is one of the easiest ways to save thousands of litres, and the council’s message is clear: ‘brown is the new green’.
Avoid watering grass berms entirely, and if you’re planning changes to the garden, consider drought-resistant or low-water plants that tolerate hot, dry conditions.
Water timers can also help prevent accidental overwatering, particularly when watering is done early or late in the day.
Check for leaks
Leaks can quietly waste large amounts of water and often go unnoticed until demand spikes.
Keep an eye out for dripping taps, running toilets, or damp patches outdoors that could indicate a hidden pipe leak.
Reporting leaks in public areas is also important — if you spot one on the street, you can notify the council using the Snap Send Solve app, or contact them directly.
Every litre saved helps the network stay resilient and reduces the likelihood of needing restrictions later in the season.
“We have a leak detection programme underway, and residents can help by reporting leaks and checking their own properties,” Hutchison says.
“Every litre saved helps keep the system resilient. If we all use water wisely, we can make sure there’s enough water for everyone this summer.” Visit this site for more: https://www.ccc.govt.nz/services/water-and-drainage/water-supply/water-reporter/water-like-oughta
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