Manual Caldera Paradise - serie 2021 (page 12 of 44) (English)

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Page 9

Water Quality and Maintenance

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. A hardness between 25 - 75 ppm is recommended

with a Salt System. If the CH level is too high, lower it with the

VANISHING ACT calcium remover (pg. 11) 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 FRESHWATER 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 FRESHWATER

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 - 5 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 WELLNESS recommends the following sanitizers:

• FRESHWATER SALT SYSTEM

• Concentrated Chlorinating Granules

• Liquid sodium hypochlorite (do not use splashless)

WATKINS WELLNESS also approves the following sanitizers:

• 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.

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 Paradise - serie 2021 Manual

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