Sundance Spas 850 - Manual (Page 41)

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 hot tub water, IT IS VERY IMPORTANT
TO MAINTAIN A SLIGHTLY ALKALINE CONDITION OF 7.2 to 7.8. Problems
become proportionately severe the further outside of this range the water
gets. A low pH will be corrosive to metals in the hot tub equipment. A high
pH will cause minerals to deposit on the interior surface (scaling). In addi-
tion, the ability of the sanitation agents to keep the hot tub clean is severely
affected as the pH moves beyond the ideal range. That is why almost all
hot tub water test kits contain a measure for pH as well as sanitizer.
12.2 Sanitizing
To destroy bacteria and organic compounds in the hot tub water, a sanitizer
must be used regularly. Your Sundance hot tub is equipped with the
Brominator™, a special compartment built into the floating skimmer gate to
hold bromine tablets. By regulating the number of bromine tablets in the
Brominator™ and the length of the filtration cycles, you can control the
amount of bromine which is actively working in your hot tub water. A
bromine residual of 2 to 3 ppm is generally considered desirable.
A two-part bromine system or granular chlorine (Dichlor) are also acceptable
sanitizers.
IMPORTANT: Do not use chlorine tablets (Trichlor) in your hot tub. This
chemical can have an extremely corrosive effect on certain materials in
the hot tub. Damage caused by use of this chemical, or improper use of
any chemicals, is not covered under the hot tub's warranty.
12.3 Other Additives
Many other additives are available for your hot tub. 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.
12.4 Optional SunZone TM Water Maintenance System
If you have elected to have your hot tub equipped with the optional
Sundance SunZone
TM UV or SunZone TM CD 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 com-
plete hot tub drainings.
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