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Hazardous pressure.
Can cause severe
injury or major
property damage
from tank blow up.
Release all pressure
and read instructions
before working on filter.
D
A
C
OUTLET
7.812"
19.85 cm
INLET
F
9.19"
23.3 cm
Figure 1 - Dimensions
DISTRIBUTOR
11" (28 cm)
12.5"
FREE BOARD
31.75 cm
11"
Figure 2 - Freeboard measurement
6.0
5.0
S7S50
4.0
3.0
2.0
1.0
0
0
10
20
30
40
50
Gallons Per Minute
GENERAL INFORMATION
• Clean a new pool as well as possible before filling pool and operating filter.
Excess dirt and large particles of foreign matter in the system can cause seri-
ous damage to the filter and pump.
Do not operate filter at water temperatures above 120°F (65.5°C).
NEVER operate this filter system at more than 50 pounds per square
inch (50 PSI/345kPa) pressure!
TABLE I - OUTLINE DIMENSIONS IN INCHES (mm)
Sand
Model
S7S50 28-1/2(724)
S8S70 32-1/2(825)
TABLE ll - FILTER SPECIFICATIONS AND OPERATING INFORMATION
FILTER MODEL:
E
Filter Area
Flow Rate Range
Public Pool Flow Rate
B
Max. Operating Pressure
Freeboard (See Fig. 1B)*
Turnover in Hours:
6 Hours
8 Hours
10 Hours
Qty. of Media Required:
Cu. Ft.
Weight (Pounds)
* Freeboard is the open space between the top of the sand bed and the tank backwash outlet.
SAND BED
NOTICE: 1 cubic foot (28 320 cm
TANK
a finer grade of sand than recommended.
FLANGE
RECOMMENDED SAND GRADES:
Use only: #20 Silica Sand, Size Range .40-.55mm., Uniformity Coefficient less
than 1.75.
NOTICE: Use of other sands will reduce filter performance, may damage
pump,and will void warranty.
Recommended:
1. Wedron Silica/Best Sand Co., Sand Grade: Wedron .45-.55mm., Effective
Size .46mm, Uniformity Coefficient 1.22.
2. U.S. Silica - Silurian Filter Sand, Sand Grade.45-.55 mm., Effective Size
.48mm, Uniformity Coefficient 1.18.
14.0
12.0
10.0
S8S70
8.0
6.0
4.0
2.0
60
70
80
015 0893
A
B
C
No. of Clamps
42(1067)
7
42-1/4(1073)
8
S7S50
2.4 Ft.
(.223M
2
2
33-48 GPM(125-182 L/m)
48 GPM(182 L/m)
50 PSI(345 kPa)
11" (28 cm)
17,200 Gal.(65 102 liters)
23,000 Gal.(87 055 liters)
28,800 Gal.(109 008 liters)
2(56 540cm
)
3
200(90,7 kg)
3
) of sand weighs approximately 100 lbs. (45,4kg). DO NOT use
4
D
E
36(914)
53-1/2(1360) 2" NPT
40(1020) 54-1/4(1380) 2" NPT
S8S70
)
3.4 Ft.
(.316M
2
47-68 GPM(178-257 L/m)
68 GPM(257 L/m)
50 PSI(345 kPa)
11" (28 cm)
24,400 Gal.(92 354 liters)
32,600 Gal.(123 391 liters)
40,800 Gal.(154 428 liters)
3(84 960cm
300(136 kg)
F
)
2
)
3
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