TM 9-2320-209-10-1 FRAME 2 1. If there is less than 10 inches of water in either section, add water following procedures given in para 4-10b, c, d, or move water from one section to another. 2. To move water from one tank section to another, turn pump delivery line discharge valve (1) and gravity delivery line suction valve (2) knobs right to closed position. 3. Move 400 gallon and 600 gallon compartment valve levers (3) to open position (toward rear of truck). 4. When low tank section reaches a minimum 10-inch water level, move 400 gallon and 600 gallon compartment valve levers (3) to closed position. GO TO FRAME 3 4-196