Manual Caldera Utopia serie - 2017 (page 12 of 44) (English)

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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.

• CALDERA spas provides the best approach to keeping water clean

by constantly 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

50 - 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 MONARCH 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 MONARCH 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 MONARCH

III 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

Manufacturing Corporation.

Water Quality and Maintenance

ALKALINE SPA

WATER

(SCALING

ZONE)

ADD pH

DECREASER

TO LOWER

ADD pH

INCREASER

TO RAISE

ACIDIC SPA

WATER

(CORROSIVE

ZONE)

COMFORT

ZONE IDEAL

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Caldera Utopia serie - 2017 Manual

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