Water Chemistry
As with any pool, it is important that you maintain chemical makeup of the pool
water. The table on page 2 summarizes the levels that are recommended by the
National Spa and Pool Institute (NSPI). The only special requirement for the Aqua
Trol is the salt level and stabilizer. It is important to maintain these levels in order
to prevent corrosion or scaling and to ensure maximum enjoyment of the pool.
Test your water periodically. Your local pool store can provide you with the
chemicals and procedures to adjust the water chemistry. Be sure to tell the pool
store that you are using an Aqua Trol
chlorine generator.
Saturation index
The saturation index (Si) relates to the calcium and alkalinity in the water and is
an indicator of the pool water "balance". Your water is properly balanced if the
Si is 0 ±.2. If the Si is below -0.2, the water is corrosive and plaster pool walls
will be dissolved into the water. If the Si is above +0.2, scaling and staining will
occur. Use the equation and chart below to determine the saturation index.
2
ºC ºF
Ti
Calcuim
Hardness
Ci
Total
Alkalinity
Ai
53
60
66
76
84
94
103
12
16
19
24
29
34
39
.3
.4
.5
.6
.7
.8
.9
How to use:
Measure pool pH, temperature, calcium hardness,
and total alkalinity. Use the chart above to determine Ti, Ci,and
Ai from your measurements. Insert values of pH, Ti, Ci and Ai
into the above equation. If Si equals .2 or more, scaling and
staining may occur. If Si equals -.2 or less corrosion or irritation
may occur.
Si = pH + Ti + Ci + Ai - 12.1
-.2
0
.2
CORROSIVE
SCALING
75
75
100
100
125
125
150
150
200
200
250
250
300
300
400
400
600
600
800
800
1.5
1.9
1.6
2.0
1.7
2.1
1.8
2.2
1.9
2.3
2.0
2.4
2.1
2.5
2.2
2.6
2.4
2.8
2.5
2.9
OK
13
Troubleshooting
Diagnostic Displays
Sequential pushes of the small "diagnostic" button next to the LCD display will
cause the Aqua Trol
to display the following information:
1. Pool temperature (xx degrees Fahrenheit or Celsius)
2. Cell voltage (typically 22.0 to 26.0 volts when chlorine is being generated, other-
wise 30-35V)
3. Cell current (typically 2.50 to 4.00 amps when chlorine is being generated, other-
wise 0 amps)
4. Desired Output % ("0P" -- "100P" depending on knob position )
5. Instant salinity ( -xxxx ppm or -x.xx grams/Liter)
6. Product name sent to the display ("AL-6" signifies "Aqua Trol" (STD), ("AL-7"
signifies "Aqua Trol Return-Jet")
7. Software revision level (r1.xx)
On the 8th push of the button the display will revert back to the default salt display.
Also, if the button is not pushed for 30 seconds, the display will revert back to the
standard salt display.
Common Problems and Solutions
1.
"Power" LED not on
Check to make sure 120VAC input power is connected to the Aqua Trol control.
Verify input voltage with a voltmeter. If there is input power, the fuse may have
blown. The Aqua Trol is protected by a 20 amp mini ATO fuse located on the circuit
board above the cell connector.
2.
Filter pump not running
Check that the time clock manual switch is in the "auto" (center) position or in the
"on" (top) position. If in "auto", then check that the time is correct (check am/pm
by using the 24 hour indicator located near the 2 o'clock position) and that the
trippers are in the "out" position.
3.
"Generating" LED not on
The Aqua Trol only generates chlorine when the filter pump is running, the main
switch is in the "AUTO" or "SUPER CHLORINATE" position, and none of the red
fault LEDs are illuminated.
4.
"Generating" LED flashing
The temperature of the pool water is too high or low to operate. You can override
this by switching the main switch to SUPER CHLORINATE. The Aqua Trol will run
at maximum output for the remainder of the current pump cycle or 24 hours, which-
ever comes first.
5.
"No Flow" LED illuminated
The Aqua Trol
®
has sensed a no flow condition and has stopped generating chlo-
rine. Check that the flow switch is plugged into the connector on the bottom of the
