TM 55-1930-209-14&P-1 Table 13-1.  ROWPU System Components* Component Quantity Function Location Pretreatment skid 1 per Controls flow of sea- Forward of media filters assembly ROWPU water and chemicals to media filters and cartridge filter assembly.  Indicates status of pre-treatment filters Seawater pump flow 1 per Monitors flow rate of On pretreatment skid rate indicator F1 ROWPU incoming seawater Pressure gauge P1 1 per Indicates pressure of On pretreatment skid top panel ROWPU media filter inlet water (seawater pump discharge) Pressure gauge P2 1 per Indicates pressure of On pretreatment skid top panel ROWPU media filter outlet water and cartridge filter assembly inlet water Pressure gauge P3 1 per Indicates water pressure On pretreatment skid top panel ROWPU at cartridge filter assembly outlet Pressure gauge P4 1 per Indicates HP pump On HP pump outlet ROWPU discharge pressure Pressure gauge P5 1 per Indicates water pressure On pretreatment skid ROWPU upstream of R07 top panel Temperature gauge 1 per Monitors incoming sea- Aft of pre-treatment skid T1 ROWPU water temperature Product water I per Measures flow of product Aft of RO block assembly flowmeter F2 ROWPU water to storage tanks Sight glass flow 1 per Indicates presence of Brine discharge line indicator ROWPU water flow from RO block Media filter 3 per Filters water from seawater Between pretreatment skid ROWPU pump before entering cartridge filter assembly cartridge filter assembly and HP pump skid Cartridge filter 1 per Filters water from media Mounted on pre-treatment skid assembly ROWPU filters before it enters HP pump HP pump assembly 1 per Boosts pressure of Aft of media filters and RO ROWPU chemically treated seawater block assembly to high level required for RO block processing 13-2