Regular maintenance and inspection
Establish a
maintenance plan
Clean the basin when slime, algae or dirt
are visible
Consider flushing and cleaning the entire
system two to four times a year
Disinfect the tower if extremely high
legionellae counts are detected or an outbreak occurs
Conduct weekly inspections: Check drift
eliminators, fix leaks, check for corrosion, deterioration and blockages, and make sure
that fans, motors, and pumps are operating properly
Consider monthly dip slides to evaluate the
water treatment program
Operation
Treat water for control of scale, corrosion,
and microorganisms
Clean tower before start-up after a long
shutdown
New cooling tower purchases
Compare the drift eliminator efficiency
ratings
Be sure that the entire basin and other
components are cleanable
Design, location, improvements
Locate new cooling towers as far as
reasonably possible from outdoor air intakes, operable windows, and frequented areas
Relocate outdoor air inlets that are within
25 feet of a cooling tower
Shield the cold-water basin and other wet
surfaces from sunlight to prevent algae growth
Keep pipe lengths as short as possible and
the number of bends (fittings) to a minimum to prevent the formation of biofilm
Keep kitchen exhaust, plants, and other
sources of living organisms as far from cooling towers as reasonably possible
Consider installing high efficiency drift
eliminators on existing towers
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