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Page 29
12.0 Water Quality Maintenance
Maintaining the quality of the water within specified limits will serve to
enhance your enjoyment and prolong the life of the spa’s equipment.
It is a fairly simple task, but it requires regular attention because the
water chemistry involved is a balance of several factors. There is no
simple formula, and there is no avoiding it. A careless attitude in regard
to water maintenance will result in poor and potentially unhealthful con-
ditions 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 mea-
sured 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 CONDI-
TION OF 7
.2 to 7.8. Problems become proportionately severe the fur-
ther 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 sanita-
tion 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 con-
tain 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.