Pool Glossary


    Filter rating meaning that 99.9 percent of essentially all of the particles larger than a specified micron rating will be trapped on or within the filter.
    Thursday, November 01, 2018 9:11 AM
  • ACID

    Liquid (muriatic acid) or dry granular (sodium bisulfate) substance used to lower the pool's pH (toward a more acidic condition) or to lower total alkalinity levels.
    Thursday, November 01, 2018 9:11 AM

    A titration test used to determine proper amounts of acid (or pH decreaser) to reach correct levels.  For example, to lower pH from 8.0 to 7.6, your pool may "demand" 2qts. of acid.
    Wednesday, October 31, 2018 1:25 PM
    Located on the top of the filter and sometimes accompanied by a pressure gauge, the bleeder is opened to release air trapped in the filter.
    Thursday, November 01, 2018 9:11 AM

    Over 20,000 species known to exist.  Algae may form on your pool surfaces or it may bloom in suspension.  We typically know algae to be green but it may also be yellow (mustard algae), black, blue-green, or any shade in between. It may form separate spots or seem to grow in sheets.  Pink algae is not algae at all but a form of bacteria.  Algae are living breathing organisms that need warmth, sunlight, and CO² to thrive.  Click here to learn more about algae and how it affects your pool.
    Tuesday, April 02, 2019 7:19 AM


    Meaning, to kill algae. Algaecides perform best as a backup to a routine sanitation program. They also help to kill airborne spores as they blow into the pool. A variety of algae treatment products are available including copper and silver compounds, poly-quat compounds, chlorine enhancers , and herbicides.
    Tuesday, April 02, 2019 10:35 AM

    An algaecide kills algae, while an algaestat retards and prevents its genesis and growth.
    Thursday, November 01, 2018 9:10 AM

    Alkalis are best known for being bases (compounds with pH greater than 7) that dissolve in water. Alkaline is commonly used as a synonym for base, especially for soluble bases.
    Thursday, November 01, 2018 9:10 AM


    Alkaline refers to the condition where the water's pH is above 7.0 (neutral) on the pH scale.  It is the opposite of acidic.  Alkalinity is the amount of carbonates and bicarbonates in the water,  measured in "parts per million" (ppm) of Total Alkalinity.
    Thursday, November 01, 2018 9:10 AM

    A silvery white and ductile member of the poor metal group of chemical elements.
    Thursday, November 01, 2018 9:10 AM