Pool words, explained
Clear explanations of common pool terms.

A
Algae
A plant-like organism that can grow in pools if not properly maintained, causing water to turn green.
B
Backwashing
A method used to clean the pool filter by reversing the flow of water through it.
C
Chemical balance
The proper levels of chemicals in the pool, including chlorine and pH levels, to keep water clean and safe.
Chlorine
A chemical used to disinfect pool water by killing bacteria and algae.
D
Decking
The material surrounding the pool where people usually walk or lounge.
F
Filter
A component of the pool system that traps and holds debris that the pump pulls from the water.
Filtration
The process of removing debris and contaminants from the pool water.
H
Heater
An appliance used to warm the pool water to a comfortable temperature.
O
Overflow
Excess water that exits the pool, often through a specially designed drain.
P
pH level
A measure of how acidic or basic the pool water is, important for swimmer comfort and equipment protection.
Pump
A device that circulates water through the pool's filtration system.
S
Shock treatment
A process of adding a large quantity of chlorine to the pool to clear up contamination.
Skimmer
A device at the pool's surface that catches debris like leaves and insects.
T
TDS (Total Dissolved Solids)
Measure of all dissolved substances in the water, which can affect water clarity and chemistry.
V
Vacuuming
The process of using a pool vacuum to remove debris from the pool floor and walls.
W
Waterline
The water level in the pool, ideally at the center of the skimmer opening.
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