Fiberglass Filtration Systems

Service Flow Rates

Single Flow Rate GPM

Twin Flow Rate GPM

Plumbing

Continuous

Continuous

Peak

Continuous

Continuous

Peak

Back Wash Connection

MG/FE/H2S

FE Only

FE Only

MG/FE/H2S

FE Only

FE Only

Model

Tank Size

Flow Rate

(inches)

@3gpm/SqFt

@5gpm/SqFt

@7gpm/SqFt

@3gpm/SqFt

@5gpm/SqFt

@7gpm/SqFt

IC-13

1354

10

1” or 1.25”

2.8

4.6

6.4

5.6

9.2

12.8

IC-14

1465

10

1.25”

3.4

5.3

7.5

6.8

10.6

15

IC-16

1665

15

1.25”

4

7

10

8

14

20

IC-18

1865

20

1.5” or 2”

5

9

12

10

18

24

IC-21

2162

25

1.5” or 2”

7

12

17

14

24

34

IC-24

2472

35

1.5” or 2”

9

16

22

18

32

44

IC-30

3072

50

2” or 3”

15

25

34

30

50

68

IC-36

3672

70

2” or 3”

21

35

49

42

70

98

IC-42

4272

115

3”

29

48

67

58

96

134

IC-48

4872

150

3”

38

63

88

76

126

176

Fiberglass Aeration Tanks

Steel Aeration Tanks Top Inlet & Bottom Outlet

Service Flow Rates (GPM)

Flow Rate

Tank

Contact

ICRCC

Flow Rates

Size

Gallons

Continuous

Peak

Model Number

Model

Continuous

Peak

GPM 1

GPM 2

1354

6

9

30 x 60

133

44

67

60407-607E/HD

1465

9

13

36 x 60

196

65

98

60407-607E/HD

1665

11

16

42 x 60

271

90

136

7G5

1865

15

22

48 x 60

365

121

183

7G5

2162

18

27

54 x 60

469

156

235

7G5

2472

26

40

60 x 60

588

196

294

7G7

3072

41

73

66 x 60

722

241

361

7G7

3672

54

81

72 x 60

875

292

438

7G7

1. Designed to provide a minimum of 3 minutes contact time at the flow rate shown. Use this

4272

75

112

rating for iron and manganese and/or hydrogen sulfide removal.

4872

100

150

2. Designed to provide a minimum of 2 minutes contact time at the flow rate stated. Use this

rating for iron removal only.

Flow Rates

Continuous Flow - Where a steady flow of water is flowing throughout the filter for 30 minutes or longer.

Peak Flow - Where interrupted patterns of water usage occur at less than 30 minute intervals.

Performance

For Iron to oxidize and precipitate within the filter system, the influent water must have:

1. A pH of at least 6.8. If the pH is below this, it should be increased.

2. No organics such as tannins. Organics may prevent the oxidation process from occurring.

3. Sequestering agents such as poly phosphates must not be present. They also prevent the oxidation process from occurring.

4. Manganese is not effectively removed by oxidation filtration, unless the pH is 8.5 or higher. When it is not practical to in -

crease the pH to this level, manganese should be removed by ion exchange.

5. If Hydrogen Sulfide is present, it will consume the oxygen in the water very quickly, leaving less available for oxidizing and

precipitating the iron. Depending on the water analysis, flow rates greater than 3 gpm/SqFt. maybe possible. Using a larger

aeration tank(s) or more frequent recharge cycles and a modified media bed will improve the results. Always use the special

media bed when H2S is present above 2ppm.

Sizing Instructions

1. Select the filter(s) that meet both your service and backwash rate requirements. Additional capacity can be added as triplex

and quad systems.

NOTE: Filter backwash rates are always higher than service flow rates. The available backwash water in gallons per minute

at 30 psi continuous will limit the size of the filter for application. Multiple filters are also necessary when

continuous supply is required. Backwashing and rinsing with filtered water is recommended for higher water quality.

2. Select the correct aeration tank that meets the service flow rate of the system

3. Steel tank and/or custom design systems available upon request.

7/30/12-LBRY