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We want to help you make informed
decisions before you buy. We do not promote one brand or product. We
want to educate and inform the general public of the large
selection of swimming pool supplies available to them today. Years
ago swimming pool owners did not have as many options available.
 Find swimming pool terms and their meanings here:
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( sorry no other terms found for the letters x, y or z )
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- ORGANIC Refers to volatile, combustible and
sometimes biodegradable chemical compounds containing
carbon atoms bonded together with other elements. The
principal groups of organic substances found in water
are proteins, carbohydrates, fats and oils. See organic
waste.
ORGANIC WASTE Also called swimmer or bather waste - All
of the soap, deodorant, suntan lotion, kips tick,
makeup, cologne, body oils, sweat, spit, urine, etc.,
brought into the water. They also form chloramines,
which are foul-smelling and body irritants. Requires
large amounts of chlorine or non-chlorine shock to
destroy.
ORP An abbreviation for oxidation reduction reduction
potential. It is a measurement of a body of water's
ability to oxidize contaminants. Measured with an
electrode and an electronic meter. It is an indication
of the sanitizing level or degree of safety from disease
in the water. Measured in mill volts with the accepted
minimum level being 650 mV (millivolt).
OTO Abbreviation for orthotolidine. A chemical reagent
used to test the total chlorine level in pool and spa
water. It does not measure free available chlorine. See
DPD.
OVER-ACID An incorrect term used to describe water that
is acidic or water that has a pH lower than 7.2.
OVER DRAIN Also called a diffuser or distributor - An
internal sand filter device that evenly distributes
influent pool water over the sand filter bed.
OXIDATION To rid the water of ammonia, nitrogen com-
pounds and swimmer waste (organic compounds). These
organic compounds disable chlorine, are body irritants
and have a foul smell. Removal is accomplished by super
chlorination or by shock treating with a non-chlorine
oxidizer.
OXIDIZER A non-chlorine shocking compound that removes
or destroys built-up contaminants and chloramines in
pool water without raining chlorine levels as required
when "super chlorinating."
OZONATOR A gaseous molecule comprised of 3 atoms of
oxygen. It is generated on site from air or oxygen and
used for oxidation of water contaminants.
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