We can also push people into storing some water fairly easily by banning use of drinkable water for filling pools, gardening and washing things like cars and ho

We can also push people into storing some water fairly easily by banning use of drinkable water for filling pools, gardening and washing things like cars and houses. Most regions now have rules limiting private wells to places without access to the water system and that could also be extended to the whole country. A rain water catchment system is quite cheap and nudging people towards investing would make a difference during the summer.