portable engine driven generator set. These portable purification units are known as
erdlators (from the developing agency, Engineering Research and Development
Laboratory). From the erdlator, treated water is pumped to rubberized fabric tanks
(figure 5-5) for storage.
Figure 5-3. Water purification unit, van type body mounted. This entire device is
commonly known as an erdlator
Figure 5-4. Typical layout for mobile purification units.