The Best Defense Against Evaporative Cooler Scale

  • Save Cooling Pads
  • Save Water
  • Save Time & Money

Cooler Guard is a 30-day time-release± treatment that prevents and dissolves mineral scale on evaporative cooling pads. It helps systems run with the bleed-off valve turned off for significant water savings.

Place Cooler Guard in the reservoir (sump) and let it do the work.

30-Day Treatment Time-Release± Helps Reduce Bleed-Off
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Cooler Guard cross-section showing pads above and the polymer sleeve in the sump below.
Cooling Pads Icon

Save Pads

Cooler Guard prevents and dissolves mineral scale buildup on cooling pads, helping prolong pad life and reduce replacements.

Water Icon

Save Water

Once scale is dissolved, Cooler Guard can allow the bleed-off valve to be turned off, reducing wasted water and operating costs.

Time and Money Icon

Save Time & Money

Time-release cleaners, descalers, and dispersants reduce manual pad cleaning and help maintain cooling efficiency.

Scale Forces Evaporative Coolers to Waste Water

Many systems continuously bleed water to slow scale buildup. This can waste thousands of gallons every month.

1 gallon/min of bleed-off = over 1,400 gallons per day
40,000+ gallons can be wasted every month per unit
Hundreds of dollars lost yearly in water & maintenance

Minerals in Water

Evaporative coolers continuously circulate water. When that water evaporates, dissolved minerals like calcium and magnesium remain behind and begin accumulating on cooling pads.

Evaporation Leaves Deposits

As water evaporates from the pads, minerals crystallize and harden. Over time this creates a dense layer of scale that blocks airflow and reduces cooling efficiency.

Hard Water = Faster Buildup

The harder the water, the faster scale forms. Without treatment, mineral deposits continue building day after day until pads must be replaced or manually cleaned.

How Cooler Guard Works

Cooler Guard delivers continuous protection using slow-release polymer technology that treats water as it circulates through the evaporative cooling system.

Water Activated

Cooler Guard sits in the sump reservoir and activates when water contacts the polymer sleeve.

Time-Release Technology

The polymer releases cleaners, descalers, and dispersants gradually over 30 days to maintain consistent protection.

Circulates Through Pads

As the pump runs, treated water circulates through cooling pads, dissolving buildup and preventing new scale formation.

See the Treatment Cycle

Cooler Guard sits in the sump reservoir and treats the recirculating water. As water flows through the pads, cleaners, dispersants, and descalers help keep mineral scale from building up—so pads stay efficient and bleed-off can be reduced.

  • Place in sump → water activates the sleeve
  • Time-release → continuous treatment for 30 days
  • Circulation → treated water moves through pads
Diagram showing Cooler Guard in the sump reservoir treating recirculating water through evaporative cooler pads.
Diagram shown for illustration. Placement: sump reservoir.

Why Scale Forms in Evaporative Coolers

Evaporative coolers constantly circulate water. As water evaporates, minerals remain behind and begin forming scale that blocks airflow and reduces efficiency.

Cooling pad comparison showing heavy mineral scale buildup vs clean wet pad

Real mineral scale buildup on evaporative cooling pads

Non-Dissolving Polymer

The polymer sleeve remains intact and leaves no residue behind in the sump or cooling system.

Reduces Manual Cleaning

Continuous treatment eliminates the need to remove and scrub cooling pads by hand.

Multiple Sizes Available

Cooler Guard is available in multiple sizes to match from personal coolers to large farm units

Real Water & Cost Savings

Once scale is controlled, evaporative coolers can operate more efficiently with reduced bleed-off and lower maintenance requirements.

Run With Bleed-Off Off

By keeping scale suspended, Cooler Guard allows systems to run without constant bleed-off discharge.

Save Thousands of Gallons

Even one gallon per minute equals over 1,400 gallons per day. Cooler Guard helps eliminate this waste.

Lower Operating Costs

Reduced water usage and longer pad life translate directly into measurable operating savings.

Non-Dissolving Polymer Sleeve
Reduces Manual Pad Cleaning
Multiple Sizes for All Coolers

Product Brochure

PDF

Overview, benefits, and product details.

Preview of Cooler Guard brochure PDF

Technical Sheet

PDF

Specs, application info, and performance details.

Preview of Cooler Guard technical sheet PDF

Quick Start

2 min
  • Place Cooler Guard in the sump
  • Run normally — treats water for 30 days
  • Replace after 30 days
  • Ask us for sizing help anytime
How It Works
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