TM 10-4610-229-101-9. FUNCTIONAL GROUPS (CONT)d.MultimediaFilters. Three identical skid-mounted filters with lifting eyes. Water is received from thepretreatment assembly at the top of the filter, flows downward through the multimedia, and returns from the bottom of thefilter to the pretreatment assembly. Multimedia filters need backwashing when MEDIA FILTER OK light on pretreatmentassembly control panel goes out.e.HighPressurePumpAssembly. Consists of a skid-mounted diesel engine/jet pump combination. The pumpis driven by the diesel engine through a series of matched V-belts. The feedwater from the pretreatment assembly israised to the high pressure needed to perform the reverse osmosis process.f.ReverseOsmosis(RO)BlockAssembly. Consists of 16 skid-mounted RO tube assemblies, each of whichholds 5 RO membrane elements. Water coming from the high pressure pump enters the tubes, where the membraneelements separate it into drinking water and brine concentrate.1-12
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