Cleaning Evaporative Coolers

For evaporative pad cleaning

• Wet pad thoroughly using a house washer or water hose
• Do not use too high of pressure or it will harm the pad
• Create a 4% solution of Cool-N-Klean by mixing 5 oz per gallon of water into a backpack/pump-up sprayer
• Spray mixture thoroughly onto entire length of pad and let stand for at least 1 hour
• Then spray the pad with clear, clean water from top to bottom, removing all minerals deposits and algae
• To control the growth of algae, add 1 to 2 ounces of SCI-62® once per week, or after each flush of the sump

For recirculating systems

• Remove screen/cartridge from filter
• Add ½ ounce of Cool-N-Klean per gallon of water to the system storage tank
• Turn pump on continuous flow until pad is completely wet
• Run for at least one hour or until calcium and deposits are broken down. Treatment should not exceed 24 hours.
• Using clear water, rinse pad thoroughly from top to bottom, with a low pressure hose.
• All mineral deposits and algae should be broken down and removed during this process
• Drain all water from the system and refill with clear, clean water.
• To control the growth of algae, add 1 to 2 ounces of SCI-62® to the storage tank at the start of the season and 1 to 2 ounces once per week during periods of use and after flushing the sump

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