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About the Valve About the Media Specifications
ISP1 Working Parameters
• Hardness must be 3 grains or higher
• pH 6.5 to < 7.0 (ISP1-1044)
• pH 6.0 to < 7.0 (ISP1-1054 and 1354)
• TDS must be 80 ppm or higher

ISP2 Working Parameters
• Hardness must be 3 grains or higher
• pH should be 7.0 or greater
• TDS must be 80 ppm or higher
NOTES:
1. pH or TDS less than listed amount above will greatly reduce media's service life.
2. Hardness less than 3 grains will reduce softening capacity over a short period of time.
MODEL
ISP1-1044
ISP1-1054
ISP1-1354
ISP2-1044
ISP2-1054
ISP2-1354
 1 Capacity:
   (Grains/Lbs NaCl)
Maximum
11,800 @12.4
22,600 @ 15.9
36,900 @ 21.2
20,300 @ 12.4
34,800 @ 15.9
60,300 @ 26.5
Medium
11,400 @ 9.3
20,700 @ 12.4
33,600 @ 15.9
19,100 @ 9.3
32,000 @ 12.4
48,300 @ 15.9
Minimum
7,300 @ 3.2
16,400 @ 6.1
28,300 @ 9.5
11,100 @ 3.2
22,900 @ 6.1
28,200 @ 9.3
 Amount of Media (Cu. Ft.)
1.0
1.5
2.5
1.0
1.5
2.5
 Maximum Water Hardness (GPG)
20
30
40
40
60
80
 2 Maximum Iron (PPM)
8.0
10.0
15.0
8.0
10.0
15.0
 3 Minimum pH Required
6.5
6.0
6.0
7.0
7.0
7.0
 4 Total pH Adjusted Water at
   Continuous Flows
630
252
432
NA
NA
NA
 5 Peak Flow Rate (GPM @ P-PSI)
19 @ 15.0
17 @ 15.0
19 @ 15.0
19 @ 15.0
17 @ 15.0
19 @ 15.0
 Continuous Flow Rate (GPM @ P-PSI)
9.0 @ 5.0
8.0 @ 5.0
9.0 @ 5.0
9.0 @ 5.0
8.0 @ 5.0
9.0 @ 5.0
 Water Pressure Range (PSI)
25-100
25-100
25-100
25-100
25-100
25-100
 Water Temp. (ºF)
33-100
33-100
33-100
33-100
33-100
33-100
 Electrical Requirements (volts-hertz)
110-50/60
110-50/60
110-50/60
110-50/60
110-50/60
110-50/60
 Pipe Size
1"
1"
1"
1"
1"
1"
 Total Dimensions:
Media Tank
10"W x 52"H
10"W x 62"H
13"W x 62"H
10"W x 52"H
10"W x 62"H
13"W x 62"H
Brine Tank
18"W x 40"H
18"W x 40"H
18"W x 40"H
18"W x 40"H
18"W x 40"H
18"W x 40"H

1 All ISP Water Conditioners are pre-factory set at medium salting. Note: influent waters must be at least 3 GPG hardness and 80 TDS. A calcite or corsex unit may    be needed for correct operation.
2 Iron removal may vary depending on form of iron, pH and other local conditions. On waters that are pre-chlorinated or where other pre-oxidation occurs, an iron    precipitate can form that is too small to be filtered.
3 The pH listed is the minimum for the influent water.
4 This is the minimum number of gallons at the continuous flow rate corrected to a 7 pH. The actual amount of pH adjusted water may be greater.
5 Unit not tested for capacity at these flow rates. Water quality may vary.

 

MODEL
ISP1-1044
ISP1-1054
ISP1-1354
ISP2-1044
ISP2-1054
ISP2-1354
MIN.
GAL.
MIN.
GAL.
MIN.
GAL.
MIN.
GAL.
MIN.
GAL.
MIN.
GAL.
 Backwash
12
42
12
48
12
84
12
36
12
42
12
60
 Brine & Rinse
72
29
90
36
90
72
72
29
90
36
90
72
 Rapid Rinse
4
14
4
16
4
28
4
12
4
14
4
20
 Brine Refill
6
3
10
5
12
6
6
3
10
5
12
6
 Total
94
88
116
105
118
190
94
80
116
97
118
158

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