TM 9-2320-341-34 15-13. SUMP VALVE, DRAIN VALVES, AND DRAIN TUBES MAINTENANCE (M49A2C) (Contd) WARNING Drycleaning solvent is flammable and will not be used near open flame. Use only in well-ventilated places. Failure to do so may result in injury or death to personnel. 12. Submerge float (20) in solvent and check for internal leakage. Replace if damaged. I I 15-59