Marquis Spas THE QUEST Operating And Troubleshooting Manual page 31

glossary
TERMS AND PRODUCT DEFINITIONS
Alkalinity – The concentration of alkaline materials in
the water. Proper alkalinity is directly related to the
stability of the pH. High alkalinity makes the pH
impossible to adjust. Low alkalinity makes the pH
unstable and difficult to maintain.
Bacteria – The germs that contaminate your
spa water.
Balanced Water – The correct balance of alkalinity,
pH and sanitizer.
Bromamines – Created when bromine combines
with bacteria.
Bromine – A bromine based sanitizer.
Calcium Hardness – The amount of dissolved
calcium in the spa water. This should be approxi-
mately 200 - 400 ppm. High levels of calcium can
cause cloudy water and scaling. Low levels of
calcium can cause permanent damage to the
equipment.
Calcium Hardness Increase – Increases calcium
levels in your water to avoid damage to the equip-
ment seals and metal in your spa. Especially needed
if using soft water.
Chloramines – Created when chlorine combines
with bacteria.
Chlorine Demand – The amount of chlorine that
must be added to the spa to destroy existing bacteria
and algae and to establish a chlorine residual.
Chlorine Residual or Free Chlorine – The available
chlorine left in the spa water to destroy harmful
organisms after the chlorine demand has been met.
The correct amount of free available chlorine is
3 - 5 ppm (0.5 ppm when used in conjunction with an
ozonator).
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MARQUIS SPAS