1 ph control, 2 sanitizing, 3 cd ozone water maintenance system – Sundance Spas 680 User Manual
Page 41: 35 for additional information, Ph control, Sanitizing, Cd ozone water maintenance system

Page 35
680 SERIES
for soaking and even damage to your spa. For specific guidance on
maintaining water quality, consult your authorized Sundance dealer
who can recommend appropriate chemical products for sanitizing and
maintaining your spa.
CAUTION: Never store spa chemicals inside the spa’s
equipment bay.
!
12.1 pH Control
pH is a measure of relative acidity or alkalinity of water and is measured
on a scale of 0 to 14. The midpoint of 7 is said to be neutral, above which
is alkaline and below which is acidic. In spa water, it is very important to
maintain a slightly alkaline condition of 7.4 to 7.6 pH. Problems become
proportionately severe the further outside of this range the water gets.
A low pH will be corrosive to metals in the spa equipment. A high pH will
cause minerals to deposit on the interior surface (scaling). In addition,
the ability of the sanitation agents to keep the spa clean is severely
affected as the pH moves beyond the ideal range. That is why almost all
spa water test kits contain a measure for pH as well as sanitizer.
12.2 Sanitizing
To destroy bacteria and organic compounds in the spa water, a sanitizer
must be used regularly. Chlorine and bromine are the two most popular
sanitizers used to date. Many other additives are available for your spa.
Some are necessary to compensate for out-of-balance water, some aid
in cosmetic water treatment and others simply alter the feel or smell of
the water. Your authorized Sundance dealer can advise you on the use of
these additives.
CAUTION: Do not use chlorine tablets (trichlor) in your spa.
This chemical can have an extremely corrosive effect on
certain materials in the spa. Damage caused by use of this
chemical, or improper use of any chemicals, is not covered
under the spa’s warranty.
!
12.3 CD Ozone Water Maintenance System
This system is optional on North American models and standard
equipment on export 50 Hz spa models. If your spa is equipped with the
optional Sundance CD Ozone water purification system you will find that
your water stays fresh and clear with significantly less chemical sanitizer
usage. You will also probably be able to go longer between complete spa
drainings.