Clean water, they knew, is among the most pressing needs. The giant wave wiped out public water and sanitation systems, contaminated wells and springs, and left millions across South Asia at grave risk of waterborne diseases such as cholera and dysentery.
A day after the wave hit, killing more than 30,000 people in Sri Lanka, the brewery called in its workers, flushed out the bottling system and began producing drinking water - 120,000 bottles so far - for distribution to the more than 800,000 Sri Lankans left homeless by the disaster.
Lion Brewery is just a small part of the huge effort to supply clean water to victims of the magnitude-9 earthquake and tsunamis Dec. 26. Aid workers and volunteers from Sri Lanka to Indonesia are trucking in water, cleaning out wells, setting up filtration systems, and handing out millions of chlorine tablets to head off thirst and stem the spread of illness.
"Contaminated water is a weapon of mass destruction," said Gerald Martone, emergency director for the International Relief Committee, which has sent workers to Indonesia and Sri Lanka. "It's hauntingly efficient at carrying disease."
In some areas, including refugee camps in the Tamil Nadu region of India, aid workers are bringing in clean water in tankers or trucks full of bottled water. This approach works, experts say, but is usually expensive and unwieldy.
Water is not easy to transport. It is heavy: A liter weighs 2 pounds, and a person needs five liters a day simply to survive.
"You start thinking about supplying water to 100,000 people, that's a lot of tankers," said Les Roberts, an expert on disaster and waterborne disease at the Johns Hopkins Bloomberg School of Public Health.
It can also be expensive. After last year's earthquake in Bam, Iran, water was trucked in from neighboring cities to supply 80,000 refugees. The cost was $130,000 a day, said Dr. Claude de Ville de Goyet, a disaster aid expert with the Pan American Health Organization, who was on his way yesterday to help in Indonesia.
Most aid experts said they would concentrate on other strategies. Jan Heeger, a water and sanitation engineer based in Amsterdam, said his group, Doctors Without Borders, prob- ably would focus on cleaning wells.
Along South Asia's coasts, many wells are now contaminated with sewage and salt water. Engineers can sometimes pump out the dirty water and, with luck, the well will refill with clean water that can be treated with chlorine.
But other methods are necessary, because wells can take weeks or months to refill. In Indonesia, decaying bodies have contaminated rivers and other water sources.
In many cases, aid groups are depending on chlorine. Workers are distributing millions of chlorine tablets, telling victims to dissolve them in water before drinking it or using it to cook.
"It's relatively cheap and easy," said Roberts. During the siege of Sarajevo, in the winter of 1992-1993, Bosnians lost access to clean water, but averted epidemics by using chlorine pills.
In some stricken areas, aid groups are posting workers at wells and springs and arming them with syringes full of chlorine solution. When people come to get water, the worker squirts chlorine in the bucket.
There are other options: Portable water treatment plants that fit in the back of a truck and reverse osmosis purification systems, which force water through a filter, removing salt and other contaminants. But the machines are costly, and require lots of fuel and maintenance.