Pool Glossary


    Also known as "alum;" this product is used as a flocculent which attracts suspended particles in the water together (green or cloudy pools).  "Alum" sinks everything to the bottom  which is then vacuumed to waste.  A small amount of "alum" can also be used as a sand filter additive. 
    Saturday, December 06, 2008 8:06 PM
    A negatively charged ion, which has more electrons in its electron shells than it has protons in its nuclei, is known as an anion due to its attraction to anodes.
    Saturday, December 06, 2008 8:07 PM
    A device which agitates or vacuums debris from the walls and floor of the pool.
    Saturday, December 06, 2008 8:16 PM
    The repositioning of the soil after construction of a pool.
    Saturday, December 06, 2008 8:18 PM
    The process of thoroughly cleaning the filter medium and/or elements by reversing the flow of water through the filter to waste.
    Saturday, December 06, 2008 8:18 PM
    Any of a class of microscopic plants having round, rod-like spiral or filamentous single cell or non-cellular bodies, often aggregated into colonies or mobile by means of flagella. Living in soil, water, organic matter or the bodies of plants and animals and being autotrophic (self-generative), saprophytic (digests chemicals already in their environment) or parasitic.
    Monday, December 15, 2008 2:47 PM

    Kills bacteria.  Chlorine is a bactericide and germicide.  Silver algaecides are actually more bactericide, and are useful on pink "algae."
    Saturday, December 06, 2008 8:21 PM

    Balanced water is the result when all of your chemical parameters are where they should be and thus balance each other.  The key components of water balance are pH, Total Alkalinity, Calcium Hardness, and Temperature; as measured using the Langelier Index of water balance.

    Saturday, December 06, 2008 8:22 PM
    A device with a hollowed out ball inside which can be turned with an external handle to decrease or increase flow.
    Saturday, December 06, 2008 8:23 PM

    A titration test used to determine proper amounts of base (pH increaser) to reach correct levels.  For example, to raise pH from 7.2 - 7.6, your water may need 2 cups of soda ash.
    Saturday, December 06, 2008 8:25 PM