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16
ADDING START-UP CHEMICALS
WATER CHEMISTRY
GUIDELINES
The following step-by-step instructions are a
recommended guideline for balancing water
chemistry. If unsure about any step in the
process, please contact your local Dealer.
Initially, it is advisable to identify what minerals
(e.g. iron) are present in the local source water.
This will provide a better understanding of how
to treat the water. Please follow the four steps
below and be sure to achieve the correct levels
in each area before moving onto the next step.
ADD all chemicals into filter compartment while
running jets for 10 minutes.
STEP #1: ESTABLISH PROPER PH
LEVEL:
The recommended range for pH is between
7.2 and 7.8. If the reading is too high, lower
the pH by using a pH Down/Decreaser
(sodium bisulfate). If the pH level needs to
be increased, do so with a pH Up/Increaser
(sodium hydrogen carbonate). Any pH Up
or Down should be added one teaspoon
at a time, waiting one-half hour between
application and re-measuring.
STEP #2: MEASURE TOTAL
ALKALINITY:
The ideal range is between 40-120 parts per
million (PPM). If the total alkalinity is too high,
it should be reduced by using an Alkalinity
Down/Decreaser (sodium bisulfate). If the
total alkalinity is too low, it can be increased
by adding an Alkalinity UP/Increaser (sodium
bicarbonate or sodium hydrogen carbonate).
These products should be added in small
amounts – a teaspoon at a time. After adding
one teaspoon, wait one half hour before
re-measuring. Once the safe range of total
alkalinity is established, proceed to the next
step.
STEP #3: DETERMINE CALCIUM
HARDNESS:
It is important to bring the calcium reading to
between 75-150 PPM. If the reading requires
adjustment, it should now be corrected. If
the water is too soft (a low reading) calcium
hardness should be added to the water to
increase the PPM reading. If the water is too
hard (a high reading), it can be corrected by
either: (A) a mixture of hard and soft water
added to attain a reading in the safe range,
or (B) addition of stain and scale control. If
calcium hardness is a problem with the local
source water (either too hard or too soft) a
test kit, which measures calcium hardness, is
essential.
STEP #4: SANITIZING:
After steps 1-3 are complete,
the spa must
be sanitized using Chlorine (sodium
dichlor)
. Add 2 teaspoons of Chlorine, and
increase as necessary to reach a level of
3-5 ppm. Check and maintain this level
weekly, and before and after using the spa.
IMPORTANT NOTE:
A granulated sodium
dichlor is highly recommended for sanitizing
spa water, granular bromine may also be
used
.
Never use compressed sanitizers
even with a floater
.
As with any other
chemicals, the sanitizer should be introduced
to the spa with the jets running a minimum of
10 minutes.
WEEKLY SHOCK:
Using a potassium monopersulfate (MPS)
shock, add approximately 2 oz. over the
filter while the jets are running. Shocking is
achieved by adding the MPS to turbulent
water. Leave the cover up and jets on high for
10 minutes. Then shut jets off and return the
cover to the closed position to maintain heat.
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