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Pool Glossary
(cont.)
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BREAKPOINT CHLORINATION: When you shock your pool, the goal is to reach a high
enough level of free-chlorine, measured in ppm, to break apart molecular
bonds; specifically the combined
chlorine molecules. When breakpoint is
reached with sufficient additions of
chlorine,
everything in the pool is oxidized.
BROMAMINES:
A combined bromine - ammonia molecule.
Unlike chloramines, which are strong smelling
and offer no sanitizing properties, bromamine
compounds continue to sanitize.
BROMINE: A
member of the halogen family, commonly used as a
sanitizer in spas, because of its resistance to
hot water with rapid pH fluctuations.
BTU: British Thermal Unit. A
unit of measurement for the use of gas by a gas
appliance. Pool heaters are rated by their
consumption.
BUFFER: A base such as Sodium Bicarbonate (Baking Soda), added to your pool will
increase alkalinity which increases the buffering capacity of the pool;
your pool's resistance to pH change.
BUFFERING CAPACITY: The ability of the pool to resist changes in pH, which prevents
water balance. The buffering capacity is given by the alkalinity, a close cousin to
pH. If your pH bounces, or resumes previous levels soon after adjustment your
buffering capacity is too low. Check your total alkalinity.
CALCUIM:
Calcium is a soft
grey alkaline earth metal.
CALCIUM CARBONATE: Known as scale, crystalline deposits of calcium may form on
your pool surfaces, equipment, or even line your pipes like cholesterol in your arteries. Properly balanced water can prevent this.
CALCIUM CHLORIDE: The flaked calcium salt used to raise levels of
Calcium Hardness
in your pool water. Also good for snow melting.
CALCIUM HARDNESS: A titration test is used to determine levels of the mineral
calcium dissolved in the pool water.
CAPACITY:
The total number of gallons of pool water
your pool contains (gallonage).
CAPACITOR:
The Capacitor is the
battery for your pool motor. It provides the
energy needed while starting, to reach 3450 rpm
quickly.
Replace your capacitor when the shaft can be
spun freely with a wrench or by hand, and when
powering the motor, you hear a 'buzz' or a 'hum'
from the motor, but no impeller movement.
Replace your old capacitor
with an exact match to the 'MFD' number on the
new capacitor.
CARBON DIOXIDE: A gas, which when present in the water, provides necessary food for the
growth of algae.
CARBONATE: Primary in the make up of total alkalinity
and TDS.
carcinogen:
Any substance, radionuclide or radiation which
is an agent directly involved in the promotion
of cancer or in the facilitation of its
propagation
CARTRIDGE:
One type of filtration, the cartridge is a pleated, porous element through
which water is passed through.
CATION:
A positively-charged
ion, which has fewer electrons than protons, due
to its attraction to cathodes.
CAVITATION:
A general term used
to describe the behavior of voids or bubbles in
a liquid. Cavitation is usually divided into two
classes of behavior: inertial (or transient)
cavitation and non-inertial cavitation. Inertial
cavitation is the process where a void or bubble
in a liquid rapidly collapses, producing a shock
wave. Such cavitation often occurs in pumps and
impellers Non-inertial cavitation is the process
where a bubble in a fluid is forced to oscillate
in size or shape due to some form of energy
input, such as an acoustic field. Such
cavitation can be observed in pumps.
CHANNELED SAND:
When water has worked open "holes" in the
sand and is streaming right through (without
really going through the sand).
CHECK VALVE: A one way flow device.
CHITIN: A naturally occurring polymer found in the shells of crabs and lobsters. Contained in the product
"Sea-Klear."
Chitin
acts as a coagulant and flocculent for oils, metals, and organic materials.
CHELATOR: A chelating agent is a water soluble molecule that can bond tightly with
metal ions, keeping them from coming out of suspension and depositing their stains and
scale
onto pool surfaces and equipment. Similar to sequestering agents, chelators are
found in such products as "Resist" and "Sea-Klear."
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