It is extremely important to properly manage water quality to extend the life of the pads and reduce maintenance. Breezair evaporative air coolers have a bleed feature that discharges a small amount of water to reduce the salt concentration in the tank reservoir. The automatic bleed feature (WATERManager system) constantly checks water quality with a probe that sends a signal back to the electronic module, which then drains some water with higher salt concentration replacing it with fresh water.