Start-Up Procedures - Dimension One Spas Aquatic Fitness System Owner's Manual

Start-Up Procedures

1) Test source water for Calcium (Hardness), Total Dissolved Solids (TDS) and metals (i.e. Iron, Copper,
and Manganese). Consult with an authorized Dimension One Spas Dealer if you need assistance testing
your source water. Knowing these three water conditions is important to properly balancing your
Aquatic Fitness System water. Properly balanced water can greatly prolong the longevity of your
Aquatic Fitness System's equipment and make it easier to maintain healthy clean clear water. The
following three source water conditions typically only need to be tested once, however, you should retest
if you move or your source water changes.
a) Calcium level should be between 200 and 400 ppm (parts per million). If it is not, use Dimension
One Spas -- Liquid Hardness Increaser (Calcium Chloride) to raise the Calcium level accordingly.
If Calcium is above 400 ppm Total Alkalinity may be lowered below 80 ppm to offset the presence of
excess Calcium – refer to: "Langlier Saturation Index".
(Acceptable Range is 200 – 400 ppm)
b) TDS should be above 300 ppm. Example: If your Calcium is 200 ppm and TDS is only 200 then you
may add Sodium Chloride (common table salt) to raise TDS to the 300 ppm (minimum ppm). 1 oz.
of Sodium Chloride per 100 gallons of water will raise TDS by approx. 63 ppm.
(Acceptable range is 300 – 2000 ppm)
c) If metals are present add recommended dosage of Dimension One Spas -- Sequestrant, while water
is being added to the Aquatic Fitness System.
2) Test Total Alkalinity (TA) and pH using the Dimension One Spas – Spa Test Strips (available in the
Dimension One Spas -- Starter Kits). With the jets turned off, dip the Dimension One Spas – Spa Test
Strips 12-18 inches into the water and swirl three times for an accurate reading (if you are using a
different brand of test strips be sure to follow the procedures as detailed on their container). TA should
read between 80 – 120 ppm, and pH should read between 7.2 – 7.8. Please use the following guidelines
should you need to make adjustments:
a) Water Condition: Total Alkalinity above 120 ppm
Add 4 ounces of Dimension One Spas -- pH/Alkalinity Decreaser (Sodium Bisulfate), with the jets
turned off, into the center of the Aquatic Fitness System. Wait 1 minute, and then turn jets on
high speed for at least 5 minutes. Turn jets off, retest and repeat procedure until the TA reads close
to 80 ppm.
When Total Alkalinity is above 120 ppm the pH will change slower than the Total Alkalinity.
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Aquatic Fitness System
2002 Owner's Manual