I think we all have to be very aware of how precious our water is and use it wisely. It may be worrying to think you'll have big water bills, but there are lots of ways to economise on your family's usage. Invest in water butts (if possible), and a really good shower will pay dividends,(sorry,that means cutting back on the lovely deep, hot baths!)There are all sorts of other ways to save, including pumps to harvest "grey water" I use "grey" water for all outside cleaning, not purified tap water, and always water plants from the water butts. It's better for the garden anyway, of course. Hope this helps!