Design Guide
Page 14
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05/15
Table 5 - HS180 Incremental Storage Volume per End Cap
Calculations assume 12” of stone above chambers/end caps, 9” stone for bedding, 8” of stone between chambers/end
caps, 6” of stone perimeter in front of the end caps and 40% stone porosity. Add 0.55 ft
3
for each additional inch of
stone foundation or stone cover.
Depth of
Water in the
System (in)
Cumulative
Single End
Cap Storage
(ft
3
)
Cumulative
Storage for
System (ft
3
)
66
19.06
47.75
65
19.06
47.20
64
19.06
46.65
63
19.06
46.10
62
19.06
45.55
61
19.06
45.00
60
19.06
44.45
59
19.06
43.90
58
19.06
43.34
57
19.06
42.79
56
19.06
42.24
55
19.06
41.69
54
19.06
41.14
53
19.06
40.59
52
19.05
40.04
51
19.04
39.48
50
19.01
38.91
49
18.94
38.32
48
18.84
37.71
47
18.71
37.08
46
18.55
36.44
45
18.36
35.77
44
18.14
35.09
43
17.90
34.39
42
17.63
33.68
41
17.34
32.96
40
17.03
32.22
39
16.70
31.48
38
16.35
30.71
37
15.97
29.94
36
15.58
29.16
35
15.17
28.36
34
14.74
27.55
Depth of
Water in the
System (in)
Cumulative
Single End
Cap Storage
(ft
3
)
Cumulative
Storage for
System (ft
3
)
33
14.30
26.73
32
13.83
25.90
31
13.35
25.07
30
12.85
24.22
29
12.34
23.36
28
11.82
22.49
27
11.28
21.62
26
10.72
20.74
25
10.16
19.85
24
9.58
18.95
23
8.99
18.05
22
8.40
17.14
21
7.79
16.23
20
7.17
15.31
19
6.55
14.38
18
5.92
13.45
17
5.28
12.52
16
4.63
11.58
15
3.99
10.64
14
3.33
9.70
13
2.67
8.75
12
2.01
7.81
11
1.34
6.86
10
0.67
5.90
9
0.00
4.95
8
0.00
4.40
7
0.00
3.85
6
0.00
3.30
5
0.00
2.75
4
0.00
2.20
3
0.00
1.65
2
0.00
1.10
1
0.00
0.55
Stone
Cover
Stone
Foundation
Содержание HydroStor HS180
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