ALMOST a million Jakartans faced a crisis last week. Piped water, which comes from 13 rivers, became a scarce commodity. The governor, and even the presidential palace, were inconvenienced by the breach of the sluicegate at West Tarum, which took four days to repair. Almost a million Jakartans were suddenly made aware of the poor management of piped water in this nation. There are always floods during the rainy season, and shortages in the dry se