Cooling systems continuously concentrate dissolved minerals and are exposed to corrosion and microbiological contamination. A properly selected RXSOL treatment program helps control scale, corrosion, algae, bacteria, biofilm and fouling, maintaining efficient heat transfer and extending equipment life.

A typical cooling tower program may include scale and corrosion inhibitors, oxidizing or non-oxidizing biocides, biodispersants, pH-control chemicals, antifoams and periodic cleaning/descaling chemicals. The exact RXSOL treatment program should be selected according to make-up water quality, metallurgy and operating conditions.

Scale can be controlled by maintaining suitable pH, cycles of concentration and blowdown, together with an appropriate RXSOL scale inhibitor. Regular monitoring of hardness, alkalinity, conductivity and silica helps identify scaling risk before deposits become severe.

RXSOL offers Cool Water Treat Corrosion Inhibitor, Corrosion Inhibitor for Multi Metal Systems, etc products designed for recirculating cooling-water systems. Product selection and dosage depend on water chemistry, system metallurgy, operating temperature and cycles of concentration.

Important operating parameters such as pH, conductivity/TDS and disinfectant residual should be monitored frequently, while hardness, alkalinity, chlorides, inhibitor residuals and microbiological parameters should be tested according to the site's water-treatment program. Trending results is more useful than relying on isolated readings.

Cooling towers provide water, nutrients, oxygen, sunlight and favorable temperatures for biological growth. Inadequate biocide treatment, stagnant areas and contamination can promote algae, bacteria, fungi and biofilm. RXSOL biocides and biodispersants can be incorporated into a controlled microbiological-treatment program.

A biocide controls or kills microorganisms, whereas a biodispersant helps loosen and disperse slime, biofilm and organic deposits so they can be removed from the system. Depending on operating conditions, the two may be used as complementary parts of the treatment program.

Common indicators include increased approach temperature, reduced heat-transfer efficiency, higher condenser pressure, restricted water flow, visible scale or deposits, and increasing energy consumption. Deposit analysis is useful before selecting the cleaning chemistry.

Only after checking the equipment metallurgy, gasket/elastomer compatibility, deposit composition and OEM requirements. Cleaning concentration, circulation time and temperature should be selected accordingly. Acid cleaning should normally include suitable corrosion inhibition and be followed by thorough flushing and, where required, neutralization/passivation.

Boiler water naturally contains dissolved oxygen, hardness salts, and impurities. Without treatment, these cause corrosion, scaling, foaming, and unsafe boiler operation.

Corrosion may result from dissolved oxygen, unsuitable pH, high chlorides, excessive dissolved solids, microbiological activity, galvanic effects and insufficient inhibitor residual. A suitable RXSOL corrosion-control program should address both the water chemistry and the metallurgy present in the system.

There is no single correct pH for every cooling tower. The operating range depends on make-up water chemistry, alkalinity, hardness, treatment chemistry, metallurgy and cycles of concentration. The target should therefore be established from a proper water analysis and equipment requirements rather than using one universal value.

Cycles of concentration indicate how much dissolved material has become concentrated in circulating water compared with make-up water. Operating at suitable cycles can reduce water consumption and blowdown, but excessive concentration can increase the risk of scale, corrosion and deposition.

Not necessarily. Open cooling towers experience evaporation, airborne contamination and continuous concentration of dissolved salts, whereas closed chilled-water loops normally require greater emphasis on long-term corrosion protection and system cleanliness. RXSOL treatment should therefore be selected specifically for the type of system.

Dosage should be based on factors including system volume, make-up rate, bleed/blowdown, water analysis, cycles of concentration, metallurgy and required inhibitor or biocide residual. For established systems, treatment performance should be confirmed through routine testing rather than relying only on a fixed litres-per-day dosage.

A properly designed RXSOL water-treatment and maintenance program can help keep heat-transfer surfaces clean, control scale and corrosion, manage microbiological growth and reduce deposit formation. Maintaining clean condenser and cooling surfaces supports stable heat transfer and can help avoid efficiency losses associated with fouling.