TM 55-1930-209-14&P-4 1-8 Capabilities.  The system generates and maintains a 5000 to 6000 parts per million (ppm) solution of chlorine and then meters this solution into product water from the ROWPU system to obtain a chlorine concentration of 5 to 7 ppm in the drinking water. 1-9  Special  limitations .    For  normal  operation,  the  chlorination  system  requires  seawater  with  a  3  to  4  percent  salt concentration.    If  the  available  seawater  has  a  salt  concentration  less  than  this,  refer  to  paragraph  3-5j  to  increase concentration. 1-10 Performance characteristics Production rate 40.5 gallons per hour (gph) Holding tank capacity 310 gallons Approximate time to reach concentration 4 hours 1-11 Equipment specifications a. Chlorination unit Manufacturer Scienco, Inc. CAGEC 8W173 Part no.  49R/A Type Biocidal hypochlorite Power 440 Vac, 3ph, 60 Hz Quantity 1 b. Metering pump Manufacturer M.  Roy Co., Flow Control Division CAGEC 52147 Part no.  R162-96 Supplier Scienco, Inc. CAGEC 8W173 Capacity 57 gph w/electric actuator @100 psi c. Drive motor Manufacturer Reliance Electric Co. CAGEC 50380 Horsepower 1/2 Speed 1725 rpm Power 1/2 HP, 208 Vac, 3 ph, 60 Hz Quantity 1 d. Chlorination control unit (part of electrical package) Manufacturer Scienco, Inc. CAGEC 8W1 73 Part no.  924 Measuring range 0-10 ppm Accuracy +1% full scale Quantity 1 e. Chlorine sensor Manufacturer Scienco, Inc. CAGEC 8W173 Part no.  931-XXX series Type Amperometric (insertion w/switch) Range 0-20 ppm Minimum sample flow 1 foot per sec Electrolyte Type R-448 Capacity 60 ml Life expectancy Approximately 6-9 months Quantity 1 1-9