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The Importance of Water Chemistry

Caution - Never batch load chemicals into unit.

Always regulate chemical feed.

Parameter Range

pH: 6.5 to 8.0* Hardness as CaCO3: 50 to 300 ppm Alkalinity as CaCO3: 50 to 300 ppm Chlorides as Cl: 200 ppm Galvanized Steel

* Galvanized steel units may require routine passivation when operating with a pH of 8.3 or higher in order to prevent “white rust.”

Table 1 - Recommended Water Chemistry Chlorides as Cl: 400 ppm Type 304 Stainless Chlorides as Cl: 4000 ppm Type 316 Stainless

Pulse~Pure Water Treatment System

EVAPCO's Pulse~Pure Water Treatment System offers an environmentally sensitive alternative for treating cooling water. EVAPCO's patent pending Pulse~Pure innovation utilizes pulsed-power technology to provide chemical-free water treatment with no harmful by-products.

This cutting edge technology enables you to rely on one trusted supplier for your evaporative cooling equipment and associated water treatment - EVAPCO!

Pulse~Pure controls bacteria in recirculating water to levels below traditional water treatment. Pulse~Pure controls the formation of mineral scale - even at high cycles of concentration. Eliminates hazardous and toxic water treatment chemicals - not only from your blow-down and drift, but completely from your facility.

Using environmentally-responsible technology, EVAPCO is revolutionizing the evaporative cooling industry by bringing water treatment, evaporative cooling equipment and quality service under a single umbrella!


Pulse Pure Flyer



EVAPLINER is a high strength, industrial urethane coating used to protect cooling tower surfaces from corrosion. EVAPLINER is a unique, synthetic rubber-like coating.

Why would I want to use EVAPLINER?

EVAPLINER is a cost effective means of extending the life of your equipment for several years.

EVAPLINER stops leaks by sealing sheet metal seams and filling in small pinholes.

What makes Fire Retardant EVAPLINER better than other coatings?

EVAPCO'S Fire Retardant EvapLiner is self extinguishing. If a fire started in a cooling tower basin coated with Fire Retardant EvapLiner the flames would extinguish themselves. Cooling tower fires have started or spread from the use of other flammable coatings. These catastrophes can be started in many ways, including unfortunate events such as a malfunctioning electric heater element in the cold water basin or ignition from weld sparks

  • EVAPLINER remains flexible while many other coatings are rigid or will become rigid over time. EVAPLINER will not crack, chip or peel!
  • EVAPLINER adheres better because the special adhesion promoter results in a mechanical and chemical bond between the coating and the metal surface. Most coatings use only a mechanical bond for adhesion.
  • EVAPLINER minimizes equipment down time. Units with EVAPLINER can be placed in to service 12 hours after application (units completed Sunday at 6:00PM can be started up Monday 6:00AM). Other coatings typically require several days to cure.
EVAPLINER can be applied year round from freezing temperatures ( 32F / 0C) to ( 100F / 37.8C ).

How long has EVAPLINER been used to coat cooling towers?

EVAPLINER has proven its effectiveness in cooling tower applications in the most severe conditions for over 10 years.

EVAPLINER is only available from your local EVAPCO Mr. GoodTower® Service Center. Your local Mr. GoodTower® has been factory trained in the proper application procedures.

Before and After Evapliner
Image of Before and After Evapliner


FluidTEK will install the sump sweeper piping and LAKOS module. Stop having to crawl into your tower at the end of the year and having to clean out the basin of debris. Prolong your fill media life as well as your basin life with FAS and LAKOS.