TM 9-2320-209-34-2-2 d. Cleaning. (1) Steam clean water tank body. Refer to TM 9-247. NOTE Do not just drop the hose down a manhole. Steam must be guided to clean water tank body. (2) Put steam nozzle in manhole and thoroughly clean each compartment. Blow steam through openings in baffles and check that all sections of each compartment are reached. (3) Check that pump compartment has no fluid. (4) By hand, clean out all sludge or scale in bottom of tank. Rinse inside of tank body with fresh water. (5) Clean outside of tank body with soap and water. Use steam to take off heavy grease or dirt. Rinse water tank body with cold water. 17-349