Water Saving Tips and Water Usage

Water Usage

The New Plymouth Water Treatment Plant provides water for 26,000 homes and businesses from Urenui to Omata representing 90 per cent of water consumption for the region.

Become a Wai Warrior - Water Saving Tips

Within the New Plymouth District our water usage is high. On average we use 292 litres per person per day. That's the equivalent of five bath tubs full of water!

We need to stop wasting water, and use water in a more sustainable way.

Water Saving Tips

In the garden

We use lots of water in our garden and we waste a lot too. Summer gardens can drink 1,000L of water per hour.

Water restrictions will be in place from 1 January to 31 March 2020.

At your place hand held hoses may be used on the odds and evens system. So if you live at an even numbered house on the street you can use your hand held- hose on even days and odd numbered houses on odd days. The use of sprinklers, irrigation systems and unattended hoses is banned.

  • Do you really need to water your garden? Dig about 10 cm into the dirt and if it’s moist there you don’t need to water.
  • Love your garden by putting down a mulch, like compost or bark. A good mulch stops about 70% of your water evaporating away.
  • The best times for watering is early morning or the evening. Remember to use the odds and even system.
  • Established plants, about 30 minutes watering once or twice a week should do the trick in dry weather, as long as the moisture can soak into the ground.
  • Water the roots (not the leaves). Make sure you water at a rate the water can be absorbed.
  • Soak – don’t spray. A good soaking every third or fourth day encourages the roots to go deeper into the soil, making the plant more able to survive dry spells.
  • When water restrictions aren't in place, you can use a sprinkler but put it on a timer set to 30 minutes. A forgotten sprinkler with no timer can waste more than 1,000L of water every hour.

While you’re outside

  • So your path, driveway or deck need cleaning? Say NO to hosing them down and use a broom instead – you’ll save heaps of water.
  • If you’ve got a pool at your place, put the cover on to stop the water evaporating.
  • When it’s time to give the car a wash or clean the windows on your house, say NO to the hose and get out the bucket and sponge – a lot less water being wasted. Washing your car with a running hose can use up to 400L


Bathrooms are the thirstiest rooms in the house! More than 70 per cent of indoor water use occurs in the bathroom and toilet.

Whether you're brushing your teeth , shaving, washing vegetables or doing the dishes by hand, don't keep the tap running. You can save water by turning off the tap or putting in the plug.

  • Tap water gets warm on hot days – but don’t waste it running the tap until the water cools down. Keep a bottle of water in the fridge you have cold, fresh water on hand.
  • Drops from a dripping tap – you could be losing up to 100 litres ever week at your place. It all adds up. Cut water waste by getting your taps fixed.
  • Use full loads in your dishwasher and washing machine whenever possible, or use the half-load switch. You could save as much as 125 litres of water per load.
  • A typical dishwasher uses 125L of water per load.

Commercial properties

  • Purchase urinal control valves. These can save 86-96 per cent of your firm’s annual water consumption.

Facts about water use

  • It costs each New Plymouth District ratepayer less than $1 per day to maintain a clean, safe water supply. This is significantly less expensive than other regions in New Zealand.
  • We have 155km of trunk mains, 650km of distribution and rider mains (service mains) and 6 pump stations. Source: 2018-28 draft AMP.
  • The replacement value of water supply assets is $294 million. Source: 2016 statutory valuation (30 June 2016).
  • A typical dishwasher uses 125L of water per load.
  • When water is aerated it sometimes appears cloudy. If this occurs, run water through your taps until it settles.
  • “Dirty” or gritty water sometimes occurs during times of high flow (sometimes as a result of refreshing or fire fighting) - run water through your taps until it is clear.
  • Warm weather can cause algae to grow in the water which sometimes causes water to have an earthy, swampy or musty odour - try chilling the water as this reduces the volatility of the compounds that cause this smell.
  • Internal domestic plumbing can cause water to smell or taste a certain way, e.g. brass and copper pipes can cause a metallic taste and plastic pipes a plastic taste.