Aucklanders' daily water consumption has dropped to 382 million litres, well within the necessary range of 400 million litres or fewer.
Watercare congratulated residents but warned that if savings did not continue, partially treated water might need to be released into the system and then people would have to boil water.
Watercare said it was going to take weeks for silt in the Hunua dams to settle after the storms sent torrents of dirty water into the system. Until then, the region's largest water treatment plant at Ardmore remained under pressure.
Water clarity at the plant was still 100 times worse than it should be.
People were asked to reduce their water use by 20 litres a day until the end of March and avoid non-essential use such as washing cars or water blasting.
Aucklanders have been warned if significant savings are not made Watercare may be forced to release partially-treated water into the system forcing people to boil water.
The water savings apply to everyone in the region as far north as Waiwera and as far south as Pukekohe. Water consumption steadily dropped during the weekend since a plea was made on Friday by authorities to cut back.
Massive clean-up begins
People have begun the task of cleaning up drenched homes and filing insurance claims after a massive storm saturated the Auckland region again yesterday.
More than 320 properties were flooded, including 225 in West Auckland, with some inundated by waist-deep water.
Heavy rainfall between 10am to 1pm caused flash flooding around Auckland, with New Lynn the worst affected.
The downpour cut power to nearly 3000 homes. Civil Defence issued a warning to stay out of floodwaters which could be contaminated by sewage.
MetService meteorologist April Clark said around 80mm fell in Auckland over a 24-hour period, but the effects were exacerbated because up to 50mm fell in a single hour across West Auckland.
Suburbs affected by flooding included: Kaukapakapa, Devonport, Parnell, Remuera, Eden Terrace, Blockhouse Bay, Morningside, Massey, Westgate, Whenuapai, New Lynn, Avondale, Titirangi, Henderson, Te Atatu, West Harbour, Glendene and Glen Eden
The Fire Service responded to 582 emergency 111 calls yesterday. At its peak they picked up one call every 24 seconds.
Emergency services were stretched pumping water from saturated homes and attending slips.
New Lynn was one of the worst hit areas after floodwaters submerged cars, poured into properties and a footpath was pushed into six businesses. Water flooded through the ground floor of a block of flats and a commercial building, sparking the evacuation of 35 people.
The MetService said the heavy rain that had hammered parts of the North Island had passed and the weather would now get better.
Most of the North Island can expect a few showers heading into the working week, but come tomorrow the umbrellas can be stashed away.
West Auckland took a hammering yesterday, recording an intense rainfall of up to 49mm between 11am and noon.
It was a startling end to a week of wet weather in most of the North Island with Northland, East and South Auckland and the Coromandel all feeling the brunt of the heavy rain.
Despite the bad weather there was only one major road closure yesterday, on SH27 between SH26 and No 4 Rd at Tatuanui. It is now open.
