TM 55-1930-209-14&P-3 Table 1-1. ROWPU System Components * Component Quantity Function Location Pretreatment 1 per Controls flow of sea- Forward of skid assembly ROWPU water and chemicals media filters to media filters and cartridge filter assembly, indicates status of pre- treatment filters Seawater pump 1 per Monitors flow rate of On pretreatment flow rate ROWPU incoming seawater skid indicator Fl Pressure gauge 1 per Indicates pressure of On pretreatment skid P1 ROWPU media filter inlet water top panel (seawater pump discharge) Pressure gauge 1 per Indicates pressure of On pretreatment skid P2 ROWPU media filter outlet water top panel and cartridge filter assembly inlet water Pressure gauge 1 per Indicates water pressure On pretreatment skid P3 ROWPU at cartridge filter assembly top panel outlet Pressure gauge 1 per Indicates HP pump On HP P4 ROWPU discharge pressure pump outlet Pressure gauge 1 per Indicates brine discharge On pretreatment skid P5 ROWPU pressure top panel Temperature gauge 1 per Monitors incoming sea- Between RO18 and Fl T1 ROWPU water temperature Product water 1 per Measures flow of Aft of RO block flowmeter F2 ROWPU product water to assembly storage tanks Sight glass 1 per Indicates presence of Brine discharge flow indicator ROWPU water flow from RO block line Media filter 3 per Filters water from Between pretreat- ROWPU seawater pump before ment skid cartridge entering cartridge filter assembly and HP filter assembly pump skid Cartridge filter 1 per Filters water from Mounted on pre- assembly ROWPU media filters before treatment skid it enters HP pump 1-7