Glass 1989 SPA Manual De Uso página 83

Prior to each use
(Test before adding any
chemicals; do not add
any chemicals if proper or
higher levels are found.)
Every four months
As needed (If water is
hazy, cloudy or has an
odor)
SUPPLEMENTAL WATER MAINTENANCE
Proper water sanitation and mineral balance (pH control) are absolutely essential
for a complete spa water maintenance program. Here are three other popular water
additives that are optional:
Mineral Deposit Inhibitors
As water evaporates from your spa and new water is added, the amount of dissolved
minerals will increase. (Minimize evaporation by keeping the cover on the spa whenever
possible.) The spa water may eventually become "hard" (Calcium Hardness too high)
enough to damage the heater by calcifying its surface. Proper pH control can minimize
this.
water may produce green or brown stains on the spa. A stain and scale inhibitor may
help to reduce these metals.
NOTE: Well water may contain high concentrations of minerals. The use of a low
Foam Inhibitors
Spa water requires changing due to the buildup of soap in the water. Typically, soap will
cause the spa water to foam when the jets are used. Soap is introduced into the spa
water from two sources: users' bodies, which retain a soap residue after showering,
and swimming apparel, which retains soap after washing.
Eventually the soap build-up in the water will be concentrated, resulting in an unclean
feeling on the bather's skin, which is impossible to remedy. When this occurs, it's time
WATER TREATMENT GUIDE
one (1) tablespoon monopersulfate(MPS)* per 950liters.
Add one and one half (1-1/2) teaspoons of sodium dichlor per 950
liters
Add one and one half (1-1/2) teaspoons of sodium dichlor per
950liters.
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EN