Water Chemistry
The table below summarizes the levels that are recommended by The Association of
Pool and Spa Professionals (APSP). The only special requirements for the SwimPure
Plus are 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 Authorized SwimPure Plus Dealer or most pool stores 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 SwimPure Plus
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 chart below to
determine the saturation index.
2
ºC ºF
Ti
Calcuim
Hardness
Ci
To ta l
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.
-.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
Input power for use with Hayward, Pentair and Polaris
controls:
Wire the SwimPure Plus DIRECTLY to 120/240VAC power (not through timer or relay).
Optional Hayward, Pentair and Polaris controls:
The Hayward, Pentair and Polaris controls use a 4 wire connection to communicate to
the SwimPure Plus and can be wired up to 500' apart. Any outdoor rated 4 conductor
cable can be used. Refer to each manufacturer's instructions and the wiring diagrams
below for proper wiring connection to the SwimPure Plus. NOTE: There must be only 1
"primary" unit. All other SwimPure Plus units must be configured as "secondary".
Hayward - Attach wires to proper screw terminals as shown below.
Pentair - Attach wires to opposite numbered screw terminals as shown below. Note
that the colors marked on the Pentair PCB do not match the SwimPure Plus.
SUBPANEL
SWIMPURE PLUS
(240 VAC)
SWIMPURE PLUS
(120 VAC)
HAYWAR
PENTAIR
or
POLARIS
PCB
PCB
BONDING
LOOP
BONDING
LOOP
GROUND
NEUTRAL
GND GND
Hayward, Pentair
or Polaris
Power Center
SwimPure Plus
(Primary)
SwimPure Plus
(Secondary)
Additional
SwimPure Plus(es)
(if required)
Jumper Removed
For Secondary(s)
Jumper Installed
For Primary
(Factory Default)
1
2
3
4
GREEN
YELLOW
BLACK
RED
4
1
3
2
2
3
1
4
GRN
GRN / -DT
BLK
BLK / GND
YEL
YEL / +DT
RED
RED / +15
SwimPure
Plus
Intellitouch
marking on PCB
green
yellow
black
red
(Colors Do Not Match)
4
4
3
3
2
2
1
1
GRN
GRN
BLK
BLK
YEL
YEL
RED
RED
SwimPure
Plus
Pro Logic
green
yellow
black
red
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