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Houston Cool Pools
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Glossary • Letter C

Pool Glossary - C

An A–Z reference of pool and spa industry terms - chemistry, equipment, construction, water features. Written in plain English by a real Houston pool builder.

ABCD–EF–GH–KL–OP–RST–Z
C

13 terms

Calcium Carbonate
Calcium scale - forms crystals and can hinder circulation and cause rough deposits on surfaces.
Calcium Hardness
Amount of minerals in pool water.
Calcium Hypochlorite
A form of chlorine shock.
Cantilever Edge
A pool deck of a poured or sprayed material that extends slightly beyond the edge of the pool, negating the need for traditional coping.
Cartridge Filter
A filtration system that uses a fine mesh material to remove suspended contaminants from the water. Requires a 30-minute cleaning with a garden hose six to ten times per year.
Chloramine
Chlorine tied up with ammonia to a level that doesn’t allow it to kill bacteria or oxidize organic waste.
Chlorine
Chemical used to sanitize pools. Comes in several forms and strengths. Free chlorine is available to sanitize; combined chlorine is tied up; total chlorine is the measure of both.
Chlorinator
A unit that holds chlorine tablets and automatically treats the water.
Clarifier
Chemical that assists the main filter by combining particles too small for the filter into larger particles the filter can capture.
Coping
The material that covers the first nine to twelve inches of horizontal surface at the pool’s edge. It can be brick, flagstone, concrete, or one of many natural or man-made materials.
Copper
A metal that can be found in pools. Can stain with blue or aqua color spots.
Corrosive
Water condition that is too acidic. If uncorrected it can cause increased wear on metal parts of the pool and equipment and can also cause etching of walls in a gunite pool.
Cyanuric Acid
Also called conditioner or stabilizer. Added to assist chlorine in not dissipating as quickly in sunlight.
BD–E

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