TM 9-2330-267-14&P
4-56. WATER TANK BODY MAINTENANCE (FIBERGLASS) (Con’t).
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
WARNING
NEVER WORK ALONE INSIDE tank assembly. A safety rope must be secured around
chest and under arms of person entering tank assembly; opposite end of safety rope
must be held by a person stationed at the manhole opening. This will allow for quick
removal of a person in tank assembly in the event of accident or personal Injury.
Personnel must wear rubber gloves, canvas sleeves, safety shoes, rubberized apron
or jacket, and protective mask while performing abrasive cleaning operation. A
portable air filter also must be used. Failure to follow this warning may result in injury
to personnel.
An adequate air evacuation system must be used to quickly exhaust fumes from
inside tank assembly. Failure to follow this warning may result in injury to personnel.
Nozzle pressure must not exceed 35 psi (241 kPa); do not hold spray nozzle on any
one area for extended periods of time. Failure to do so may result in-tank rupture or
damage and possible injury to personnel.
Clean ail interior surfaces including baffle plates, corners, seams, drains, and outlets, with sandblast sand to
remove all traces of corrosion and old coatings.
Remove dust, dirt, and blasting material from inside water tank body with vacuum cleaner or other suitable
equipment.
Scrub interior with brush and water and scouring powder solution.
Rinse interior repeatedly with warm water, approximately 120 ‘F (49 “C), to remove soapy solution.
Install drain plug in water tank body.
Fill water tank body with water and add 4 gal. (151) of liquid laundry bleach. Let stand eight hours to complete
sanitation process.
Remove drain plug from water tank body.
Rinse interior repeatedly with warm water, approximately 120°F (49°C), to remove bleach solution.
Dry interior completely with forced air heater.
Install drain plug in water tank body.
Close and secure manhole cover on water tank body.
c.
INSTALLATION
WARNING
All personnel must stand clear of hoist when raising or lowering water tank body. Failure
to follow this warning may result in serious Injury or death to personnel.
1.
Position water tank body (1) on frame assembly.
4-108
