so that they are stabilized or balanced. Balance the water chemistry
every time you fill the exercise system 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 exercise system 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 exercise system is filled for the very
first time.
• The following three water components must be kept in balance to avoid
damage to the exercise system. 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 on exercise
system components. The recommended CH reading is between
50 - 150 ppm. If the CH level is too high, lower it with the calcium
remover per instructions. Once in balance, the CH reading
normally remains stable until more water is added. Great care
must be taken when filling the exercise system from a water
softener to ensure that the calcium remains in balance and avoid
damage to the exercise system.
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 80 - 120
ppm. To raise the TA, use pH/Alkalinity Up (sodium hydrogen
carbonate). To lower the TA, use pH/Alkalinity Down (sodium
bisulfate). 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 exercise system
and physical discomfort for exercise system users. A low pH
dissipates sanitizer, causes corrosion, and irritates exercise
system 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: Exercise system 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. CLEAN SCREEN pre-filter –The CLEAN SCREEN pre-filter
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.
b. 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 exercise system 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 exercise system whenever possible.)
High iron or copper content in the water may produce green or
brown stains on the exercise system.
c. Foam Inhibitors - Soap is introduced into the exercise system
water from users' bodies and swimming apparel and can cause the
exercise system 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 UVC
Ozone system combines the Corona Discharge generator and a UVC
lamp. The UVC lamp kills and damages bacteria DNA on contact
providing a maximum water sanitation solution. 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 exercise system water. The
recommended Free Available Chlorine (FAC), the amount of available
chlorine sanitizer, is 1.0-5.0 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 exercise system water. Consult your dealer for their
recommendations and instructions on proper sanitizing of the exercise
system.
Watkins recommends the following sanitizer:
• Sodium Dichloro-s-Triazinetrione (sodium dichlor or chlorine)
• Biguanide
• Liquid sodium hypochlorite
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.
THE SWIMCROSS WATER
MAINTENANCE PROGRAM
FILLING THE EXERCISE SYSTEM WITH
WATER
Use the CLEAN SCREEN pre-filter to remove unwanted contaminants
such as rust, dirt, detergents, and algae from the fill water. Dissolved
metals, copper, iron, and manganese are also removed. Instructions are
included with the CLEAN SCREEN pre-filter. Always fill the exercise
system through the filter compartment. Do not fill your exercise system
using water from a swimming pool as pool chemicals are very different
from those used in a exercise system and can damage your exercise
system.
ADDING CHEMICALS TO THE WATER
All exercise system water chemicals, must always be dispersed directly
into the swim area while swim jets are on high speed or dispensed into
the spa side filter area with spa jets on while running for a minimum of
ten minutes with the covers off.
BUILDING A SANITIZER ROUTINE
During the first month of ownership, measure the sanitizer residual daily
in order to establish a baseline of sanitizer needed vs. exercise system
usage. Sanitizer needed is the amount of Free Available Chlorine
needed to accommodate the number of users and their combined usage
time. For example, two exercise system users for twenty minutes every
day creates regular demand on the sanitizer that is used to determine
Page 22
Water Quality and Maintenance
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