Cooling Tower Water Treatment & Maintenance


Proper water treatment and a regular maintenance program are important requirements when it comes to operating a clean, efficient cooling tower. During routine operation, cooling towers collect dust, pollen, pollutants from the air. These accumulated contaminants can cause scale and corrosion, which decrease energy efficiency, and provide prime breeding grounds for fungus and bacteria including deadly Legionella. Regular cleaning and maintenance improve energy efficiency, extend the lifespan of the tower and HVAC system, allow water treatment chemicals to perform better, and reduce serious health risks.

It is important to maintain an effective water treatment regimen to prevent corrosion, scale, fouling, and microbial contamination. This can be achieved using chemical inhibitors or with chemical-free, environmentally-friendly methods that remove microbes and particles by applying electrical pulses to tower water. Cooling towers can be metered to measure the quantity of water put into and discharged from the tower to conserve water, better manage tower efficiency, and eliminate sewer charges for water that does not enter the sanitary sewer system.

Twice a year, cooling towers should be inspected, cleaned and disinfected to remove accumulated scale and debris. Components and piping should be visually inspected and checked for vibration, leaks and noise. Drift eliminators should be power washed. Nozzles should be inspected, cleared of debris, and replaced as needed. The sump screen should be cleaned to allow maximum flow to the pump. Heaters should be cleaned and inspected for broken or cracked elements, a common problem. Belts should be replaced, and motors greased as needed.

About PJM

PJM Mechanical Contractors, Inc. is a multi-faceted mechanical contractor providing construction and installation, service and maintenance, and design/build services in a comprehensive range of mechanical disciplines that include HVAC, plumbing, controls, refrigeration, custom metal fabrication, piping, fire protection, and backflow preventer testing. PJM primarily serves clients in pharmaceuticals, manufacturing, healthcare, institutional, and other various commercial and industrial sectors.

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 1688 5th Street | Ewing, NJ  08638 | Tel: 609.921.1394 | Fax: 609.530.1437

Plumbing Lic. #7969 | HVAC Lic. #19HC00113011 | MBE Cert. #72727-21

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