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Cleaning
Any evaporative-type cooling tower must be thoroughly cleaned on a
regular basis to minimize the growth of bacteria, including Legionella
Pneumophilla, to avoid the risk of sickness or death. Service person-
nel must wear proper personal protective equipment.
Do NOT attempt any service unless the fan motor is locked out.
Operators of evaporative cooling equipment, such as water cooling tow-
ers, should follow maintenance programs which will reduce to an absolute
minimum the opportunity for bacteriological contamination. Public health
service officials have recommended that “good housekeeping” procedures
be followed, such as: regular inspections for concentrations of dirt, scale,
and algae; periodic flushing and cleaning; and the following of a complete
water treatment program including biocidal treatment.
Visual inspection should take place at least once a week during the op-
erating season. Periodic flushing and cleaning should be done at least
twice a year. Nozzles, louvers, drift eliminators, and easily accessible fill
surfaces should be flushed by use of a moderate-pressure water nozzle,
being careful not to cause physical damage. A reliable water treatment
program should be installed and maintained.
Warning