- A clean water distribution system, not only prior to pad installation but also during operation, is the most important aspect for maintaining the entire evaporative cooling system. This, coupled with quarterly
inspection/maintenance checks, will ensure a properly operating evaporative cooling system. - The recommended pH of the water should be maintained at a level between 6 and 8. Exceeding these limits will seriously deplete the resin content of the pad and thus reduce its structural integrity.
- Frequently check system for damaged or clogged cooling pads.
- Minimize the number of on/off wetting cycles for the cooling pads.
- Completely dry the cooling pads once every 24 hours.
- Maintain a water bleed off rate of 3-5% per day.
- Remove and brush pads with a soft bristled brush and then flush system to remove debris. This should be done twice a year.
- Once per year, rotate 30/30 cooling pads so that the surface of the pad formerly facing the inside of the evaporative cooling system is now facing the outside.
Algae Growth Algae will grow on any surface that is wet and exposed to direct sunlight. Following are suggestions that will aid in the prevention of algae growth on your pads. - Use clean well water or chlorinated water from city systems.
- Dry the pads at least once every 24 hours.
- Keep the pads and sump shaded from direct sunlight.
- Use an approved algaecide.
- Identify and eliminate possible sources of nutrients in the water.
- Completely flush system 1 time per week during the cooling season.
Mineral and Scale Build-up When water has a high mineral content, scale and mineral deposits form throughout the cooling pad. In order to aid in the prevention of mineral build-up follow these tips. - Maintain the water at a pH level between 6 and 8.
- Avoid or minimize on/off wetting cycles the cooling pads experience.
- Use a daily water bleed off rate of at least 3-5%.
- Use a mineral prevention aid.
- Increase the amount of water flowing over the face of pads.
| A clean water system is the most important aspect for maintaining an evaporative cooling system. This, together with periodic inspection of the media for potential problems, is essential. Good housekeeping practices, along with recommended annual/periodic maintenance, will provide a well-operating evaporative cooling system without biological, air quality or water system problems. | |