Three water treatment experts are in refugee camps in Indonesia teaching locals how to use portable emergency treatment plants.
The group will teach locals how the equipment works
Mark Burton, Andy Shorey and Rob Hyler from Bournemouth and West Hampshire Water will set up the equipment, and then train locals how to run them.
Three camps, housing 66,000 people on the island of Sumatra, have been earmarked for the equipment.
Many thousands of people were left homeless after the Boxing Day tsunami.
Bournemouth & West Hampshire Water has been coordniating efforts with its parent company Cascal, which operates in Batam, Indonesia.
The equipment and chemicals were sent to Batam by plane and then taken by the Indonesian navy to Lhokseumawe - a two-day journey by sea.