No, as we learnt in Cape Town that is just one of many things you need to do to accumalate the water savings:

1. Stop washing vehicles. Commercial places started waterless washing. Car service centres and car rental agenciesd also all stopped washing cars.
2. Stop rising down paving with water.
3. Garden watering was limited to a specific times just after sunrise, and before sunset.
4. Sliding scale rates were introduced so more you use, it gets a lot more expensive.
5. If a household exceeded a cap (and no motivation was approved for more people in it), a special meter was fitted that stopped the water after a daily allocation.
6. We put bricks inside toilet cisterns if they could not be adjusted down for usage.
7. We showered instead of bathed, and even showers were turned off when soaping. I also fitted a low water usage shower head.
8. Toilets only got flushed afer a number 2.
9. Those who could afford it, installed 5,000L water tanks to catch the odd rainfal in their own tanks for watering gardens and filling koi ponds etc.

I’ve probably missed a few, but once the population realises how very serious the situation is, it becomes the right thing to do, and we dramatically cut the water usage. Even though we reached literally a week or tw9o before say 0, we never actually had the taps stop running.