Manila has been hit by its worst water shortage in years, leaving bucket-bearing families to wait hours to fill up from tanker trucks and some hospitals to turn away less urgent cases.Taps are dry from four to 20 hours per day in the homes of about half of the Philippine capital's roughly 12 million people due to rolling outages driven by a dearth of rain and inadequate infrastructure."I have learned to take a bath using only seven pitchers of water," Ricardo Bergado said as he