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Caldera Vacanza - serie 2022 Manual

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Water Quality and Maintenance
26
FUNDAMENTALS OF WATER
MAINTENANCE
Testing: Test the water weekly or each time the spa is used with
convenient 5-way test strips or more accurate liquid/tablet reagent
test kit per instructions. Critical parameters: sanitizer level, pH,
Calcium Hardness (CH), and Total Alkalinity (TA). Store test
equipment in a dark, cool, dry place to maintain potency.
Water Filtration: The filtration used in CALDERA spas helps keep
water clean by circulating sanitizer and removing waste from the
spa. Regularly inspect and clean filters for peak performance.
Chemical Balance/pH Control: It is important to adjust the primary
water parameters (Total
Alkalinity, Calcium hardness,
pH) into the recommended
ranges so that they are
stabilized or balanced.
Balance the water chemistry
every time you fill the spa
with new water and then
during the life of that body of
water. Keeping the water in
balance prevents damage
by holding the pH in a safe
range and preventing calcium
scale formation on spa equipment. A low pH can damage
metal components whereas a high pH can cause high levels
of calcium to form scale. Your dealer should provide a detailed
water chemistry orientation soon after your new spa is filled for the
very first time.
The following three water components must be kept in balance to
avoid damage to the spa. Do balance these components in the
order they are listed here as each will help you balance the next
using a minimum amount of chemicals.
1. Calcium Hardness (CH) – CH is the measure of the amount of
dissolved calcium in the water. Low levels can make the water
corrosive and high levels cause scale formation of spa components.
The recommended CH reading is between 75 - 150 ppm. If the
CH level is too high, lower it with the VANISHING ACT calcium
remover per instructions. Once in balance, the CH reading normally
remains stable until new water is added. Great care must be taken
when filling the spa from a water softener to ensure that the calcium
remains in balance and avoid damage to the spa.
2. Total Alkalinity (TA) - TA is a measure of the water’s ability to resist
changes of pH or buffer capacity. A low TA allows the pH to
fluctuate easily. The recommended TA reading is between 40 - 120
ppm. To raise the TA, use pH/Alkalinity Up (sodium hydrogen
carbonate). To lower the TA, use pH/Alkalinity Down (sodium
bisulfate). Once the TA is balanced, it normally remains stable until
the next drain/refill. We recommend you check the TA reading once
per month. Raising/lowering the TA may cause the pH readings to
fluctuate widely. Ignore the pH readings on the test strip while you
are balancing the TA.
3. pH - The pH is the measure of the acidity and alkalinity. Maintaining
the proper pH level will optimize the effectiveness of the sanitizer,
preventing damage to the spa and physical discomfort for spa users.
A low pH dissipates sanitizer, causes corrosion, and irritates spa
users. A high pH level will neutralize sanitizer, promote scaling and
cloud water. The recommended pH reading is between 7.2 - 7.8.
To lower the pH level, use pH/Alkalinity Down (sodium bisulfate). To
raise the pH level, use pH/Alkalinity Up (sodium carbonate).
Water Conditioners: Spa fill water varies from location to location
and user to user, therefore it is important to consult with your
dealer for an appropriate program.
a. VANISHING ACT – High levels of calcium and some minerals
can be removed from the water with the single use VANISHING
ACT. High calcium levels can cause scale formation on the spa
equipment and shell.
b. CLEAN SCREEN pre-filter –The CLEAN SCREEN pre-flter should
be used at every fill and top-off to remove contaminants from the
fill water, especially iron, copper, and manganese. Many water
sources including well water contain high concentrations of minerals
that can cause staining of the shell and plastics.
c. Stain and Scale control – For water high in calcium and minerals,
it may be necessary to use an anti-scalant like Stain and Scale
control. As water evaporates from your spa and new water is
added, the amount of dissolved minerals like calcium, copper, iron,
and manganese will increase. (Minimize evaporation by keeping the
cover on the spa whenever possible.) High iron or copper content in
the water may produce green or brown stains on the spa.
d. Foam Inhibitors - Soap is introduced into the spa water from users’
bodies and swimming apparel and can cause the spa water to foam
when the jets are used. Low levels of calcium hardness (soft water)
can increase foaming. Although ozone can oxidize soap residual,
it may become necessary to add Foam Inhibitors to suppress the
foam. Excessive soap in the water may require a water change to
resolve.
Oxidizers: Ozone and Monopersulfate (MPS) are oxidizers used to
prevent the buildup of contaminants, maximize sanitizer efficiency,
minimize combined chlorine, and improve water clarity. They are
to be used in conjunction with EPA registered sanitizers. The
high output ozone system uses Corona Discharge technology
to produce a high concentration of ozone which is injected
into the spa water 24 hours per day. Chlorine-Free Oxidizer,
Monopersulfate (MPS) is a granular oxidizing chemical.
Sanitizers: Maintaining the recommended residual level of an EPA
registered sanitizer at all times will decrease the occurrence of
unsafe bacteria and viruses in your spa water. The recommended
Free Available Chlorine (FAC), the amount of available chlorine
sanitizer, is 3.0-5.0 ppm. A low FAC can allow bacteria and
viruses to grow rapidly in the warm water, and a high FAC can
cause discomfort to the user’s eyes, lungs, and skin. Each
sanitizer carries its own instructions regarding how much to use
and when to add it to the spa water. Consult your dealer for their
recommendations and instructions on proper sanitizing of the spa.
Watkins recommends the following sanitizer:
• FROG sanitizing system (mineral and bromine)
Watkins also approves the following sanitizers:
• Sodium Dichloro-s-Triazinetrione (sodium dichlor or chlorine)
• Biguanide
WARNING: DO NOT use tri-chlor chlorine, bromo-chloro-dimethyl-
hydantoin (BCDMH), or any type of compressed bromine or chlorine, acid
or any type of sanitizer which is not recommended by Watkins Wellness.
FROG WATER CARE SYSTEM
The FROG Water Care system is comprised of the following two
products:
THE FROG MINERAL CARTRIDGE. This cartridge introduces minerals
into the spa water, inhibiting bacteria growth.
ALKALINE SPA
WATER
(SCALING
ZONE)
ADD pH
DECREASER
TO LOWER
pH
ADD pH
INCREASER
TO RAISE
pH
ACIDIC SPA
WATER
(CORROSIVE
ZONE)
COMFORT
ZONE IDEAL
… 29 …


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