Glossary Of Swimming Pool Terms & Definitions - I | Print |
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Glossary Of Swimming Pool Terms & Definitions
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IMPELLER The rotating member of a pump. The part of the pump that moves the water.

INFLUENT The water entering the pump, the filter or other equipment of space. Water going into the pump is called in influent, while water leaving the pump is called the effluent.

INLET A fitting in the pool or spa on the water return line from the equipment that water returns to the pool. Usually the last thing on the return line.

IONIZER A water-sanitation device that uses elec- tricity to generate metal ions, which are dispersed in the water. It works by passing a low-voltage DC current through a set of metallic (usually copper and silver) elec- trodes placed in line with the circulation equipment. The copper is an algaecide, while the silver is a bactericide. Does not remove swimmer waste.

IRON Iron in water causes the water to be brown- or green-collored. Can be controlled by the addition of a sequestering agent or a chelat- ing agent. Water can be tested with an iron test kit.

ISOCYANURATES Also called stabilized chlorine - A family of chlorine pool sanitizers that contain conditioner (cyanuric acid or isocyanuris acid) to protect the chlorine from the de- grading UV rays in sunlight. The most com- mon types are sodium dichlor and trichlor. The granular form is dichlor, which is fast- dissolving and can be used for regular chlorination or superchlorination by broad- casing into the pool or spa. Tablet or stick form is trichlot (which is usually used in a chlorine feeder - either the floating type or the in-line erosion type) used for regular chlorination only.


Salt in Water

When salt is dissolved in water, the sodium and chlorine break apart to form free sodium ions and chloride ions. Effectively keeping your pool clean.

Baracuda G2

A Baracuda G2 has a 36 - finned disc.


The most common and effective sanitiser of swimming pools in the world is Chlorine.

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