Archive | Swimming Pool Glossary

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01 August

Acid /as-id/ adjective Chemical substance with the ability to neutralize alkaline materials and form salts by combining with bases. Acid contains hydrogen and can also dissolve metals. Typically, acid will be used to lower the alkalinity of spa and swimming pool water. The most commonly used acids in swimming pools are sodium bisulfate and hydrochloric […]


01 August

Electrolysis /ih-lek-trol-uh-sis, ee-lek-/ noun This electrochemical reaction typically causes a black stain to appear on a pool’s plaster or on metal fixtures. It is normally caused by two dissimilar metals getting pumped together or can be the result of incorrect electrical grounding of pool lights or equipment. It was determined that electrolysis was the cause […]


01 August

Algae /al-guh/ noun These are plant-like organisms that are microscopic and contain chlorophyll. Carbon dioxide provides nourishment to algae, which uses sunlight to carry out the process of photosynthesis. Rain and wind are often responsible for its presence in swimming pool water, where it grows in large batches and gives the water an unpleasant hue. […]


01 August

Filter /fil-ter/ noun An important device that removes suspended or dissolved particles from the pool water. It works by recirculating the water through a porous substance. The most commonly used filters are diatomaceous earth, cartridge, and sand. The filter had to be changed because it wasn’t working properly and the result was dirty water in […]


01 August

Neutralizer /noo-truh-lahyz, nyoo-/ verb This chemical ensures that bromine becomes harmless. It increases the accuracy of pool water tests by counteracting the bleaching effect of bromine or chlorine. You can use it to reduce the levels of chlorine or bromine to ensure these chemicals are not harmful to swimmers. Once the neutralizer had been applied […]