Canberra

Seems like something that's better to have when you need it than otherwise, even if my natural instinct is to avoid treated sewage where possible. Luckily we're in one of the better situations water wise (for an inland city) with the Cotter and Queanbeyan catchments providing pretty clean water along with the Murrumbidgee, but the population is growing pretty quickly so more options is better in the long run.