Glossary
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Glossary of Pool Terms
There are 67 entries in this glossary.F
| Term | Definition |
|---|---|
| Filter |
A device that removes undissolved particles from water through a porous filter medium (sand, cartridge, DE). |
| Filter Cycle |
The operating time between filter cleaning or backwash cycles. Long filter cycles are the most convenient. |
| Filter Element |
A device (cartridge) within a filter housing designed to remove suspended debris from the water. |
| Filter Medium |
Sand, Diatomaceous Earth, or other finely graded material used to filter particles out of the water. The material of a filter cartridge. |
| Filter Sand |
Sharp silica or quartz particles graded for uniform size and used as a filter medium. #20 Silica Sand is the industry standard grade of filter sand. |
| Flow Meter |
A measuring device that determines the gallons per minute of water flow through a pool recirculation system. |
| Flow Rate |
The volume of liquid (water) flowing past a given point in a specific time period, expressed in gallons per minute. |
| Free Available Chlorine |
Hypochlorous Acid, the chlorine in pool water that is not combined with ammonia or nitrogenous compounds, and therefore is available to kill bacteria entering the water. See also Available Chlorine. |