glass 1989 Infinity Bedienungs- & Wartungsanleitung Seite 72

Chloramines: Compounds formed when chlorine combines with nitrogen from body
oils, urine, perspiration, etc. Chloramines can cause eye irritation as well as having a
strong odor. Unlike bromamines, chloramines are weaker, slower sanitizers.
Chlorine: An efficient sanitizing chemical for spas. Manufacturer recommends the use
of sodium dichlor-type granulated chlorine. This type is preferred because it is totally
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soluble and nearly pH neutral.
Chlorine (or Bromine) Residual: The amount of chlorine or bromine remaining after
chlorine or bromine demand has been satisfied. The residual is, therefore, the amount
of sanitizer which is chemically available to kill bacteria, viruses and algae.
Corrosion: The gradual wearing away of metal spa parts, usually caused by chemical
action. Generally, corrosion is caused by low pH or by water with levels of TA, CH, pH
or sanitizer which are outside the recommended ranges. DPD: The preferred reagent
used in test kits to measure the Free Available Chlorine.
Halogen: Any one of these five elements: fluorine, chlorine, bromine, iodine, and
astatine.
MPS: Monopersulfate is a non-chlorine oxidizer.
Oxidizer: The use of an oxidizing chemical is to prevent the buildup of contaminants,
maximize sanitizer efficiency, minimize combined chlorine and improve water clarity.
Pathogen: A microorganism such as bacterium that cause disease.
pH: The measure of the spa water's acidity and alkalinity. The recommended pH for the
spa water is 7.4 to 7.6. Below 7.0 (considered neutral), the spa water is too acidic and
can damage the heating system. Above 7.8, the water is too alkaline and can result in
cloudy water, and scale formation on the shell and heater.
ppm: The abbreviation of "parts per million", the standard measurement of chemical
concentration in water. Identical to mg/l (milligrams per liter).
Reagent: A chemical material in liquid, powder, or tablet form for use in chemical testing.
Sanitizer: Sanitizers are added and maintained at recommended residuals to protect
bathers against pathogenic organisms which can cause disease and infection in spa
water.
Scale: Rough calcium-bearing deposits that can coat spa surfaces, heaters, plumbing
lines and clog filters. Generally, scaling is caused by mineral content combined with
high pH. Additionally, scale forms more readily at higher water temperatures.
Shock Treatment: Also known as "super-chlorination" when chlorine is used. Shock
treatment is a process of adding significant doses of a quick dissolving sanitizer(sodium
dichlor is recommended) to oxidize non-filterable organic waste and to remove
chloramines and bromamines.
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