<Li> Splash type fill (breaks up falling stream of water and interrupts its vertical progress) </Li> <Ul> <Li> Full - Flow Filtration--Full - flow filtration continuously strains particulates out of the entire system flow . For example, in a 100 - ton system, the flow rate would be roughly 300 gal / min . A filter would be selected to accommodate the entire 300 gal / min flow rate . In this case, the filter typically is installed after the cooling tower on the discharge side of the pump . While this is the ideal method of filtration, for higher flow systems it may be cost - prohibitive . </Li> </Ul> <Li> Full - Flow Filtration--Full - flow filtration continuously strains particulates out of the entire system flow . For example, in a 100 - ton system, the flow rate would be roughly 300 gal / min . A filter would be selected to accommodate the entire 300 gal / min flow rate . In this case, the filter typically is installed after the cooling tower on the discharge side of the pump . While this is the ideal method of filtration, for higher flow systems it may be cost - prohibitive . </Li> <Ul> <Li> Side - Stream Filtration--Side - stream filtration, although popular and effective, does not provide complete protection . With side - stream filtration, a portion of the water is filtered continuously . This method works on the principle that continuous particle removal will keep the system clean . Manufacturers typically package side - stream filters on a skid, complete with a pump and controls . For high flow systems, this method is cost - effective . Properly sizing a side - stream filtration system is critical to obtain satisfactory filter performance, but there is some debate over how to properly size the side - stream system . Many engineers size the system to continuously filter the cooling tower basin water at a rate equivalent to 10% of the total circulation flow rate . For example, if the total flow of a system is 1,200 gal / min (a 400 - ton system), a 120 gal / min side - stream system is specified . </Li> </Ul>

Where colling towers efficiency will be more where humidity is less or high