13
DC-780 Cumulative Storage Volumes Per Chamber
Assumes 40% Stone Porosity. Calculations are Based Upon a 9” (230 mm) Stone Base Under Chambers.
Note:
Add 1.13 ft
3
(0.032 m
3
) of Storage for each Additional Inch (25 mm) of
Stone Foundation.
Bare
Chamber
Storage
ft
3
(m
3
)
Chamber and Stone
Foundation Depth in. (mm)
9” (230 mm) 12” (300 mm) 18” (450 mm)
DC-780 Chamber
78.4 (2.2)
78.4 (2.2)
81.8 (2.3)
88.6 (2.5)
ENGLISH TONS (yds
3
)
Stone Foundation Depth
9”
12”
18”
DC-780 Chamber
4.2 (3.0)
4.7 (3.3)
5.6 (3.9)
METRIC KILOGRAMS (m
3
)
230 mm
300 mm
450 mm
DC-780 Chamber
3,810 (2.3)
4,264 (2.5)
5,080 (3.0)
Note:
Assumes 9” (150 mm) of stone above, and between chambers.
Storage Volume Per Chamber ft
3
(m
3
)
Amount of Stone Per Chamber
Stone Foundation Depth
9” (230 mm)
12” (300 mm)
18” (450 mm)
DC-780 Chamber
5.9 (4.5)
6.3 (4.8)
6.9 (5.3)
Note:
Assumes 6” (150 mm) separation between chamber rows and 18” (450
mm) of cover. The volume of excavation will vary as depth of cover increases.
Volume Excavation Per Chamber yd
3
(m
3
)
Note:
Assumes 40% porosity for the stone, the bare chamber volume, 6”
(150 mm) of stone above, and 6” (150 mm) row spacing.
Depth of Water in
System Inches (mm)
Cumulative Chamber
Storage ft
3
(m
3
)
Total System Cumulative
Storage ft
3
(m
3
)
45 (1,143)
46.27 (1.310)
78.47 (2.222)
44 (1,118)
46.27 (1.310)
77.34 (2.190)
43 (1,092)
46.27 (1.310)
76.21 (2.158)
42 (1,067)
46.27 (1.310)
75.09 (2.126)
41 (1,041)
46.27 (1.310)
73.96 (2.094)
40 (1,016)
46.27 (1.310)
72.83 (2.062)
39 (991)
46.27 (1.310)
71.71 (2.030)
38 (965)
46.21 (1.309)
70.54 (1.998)
37 (940)
46.04 (1.304)
69.32 (1.963)
36 (914)
45.76 (1.296)
68.02 (1.926)
35 (889)
45.15 (1.278)
66.53 (1.884)
34 (864)
44.34 (1.255)
64.91 (1.838)
33 (838)
43.38 (1.228)
63.21 (1.790)
32 (813)
42.29 (1.198)
61.43 (1.740)
31 (787)
41.11 (1.164 )
59.59 (1.688)
30 (762)
39.83 (1.128)
57.70 (1.634)
29 (737)
38.47 (1.089)
55.76 (1.579)
28 (711)
37.01 (1.048)
53.76 (1.522)
27 (686)
35.49 (1.005)
51.72 (1.464)
26 (660)
33.90 (0.960)
49.63 (1.405)
25 (635)
32.24 (0.913)
47.52 (1.346)
24 (610)
30.54 (0.865)
45.36 (1.285)
23 (584)
28.77 (0.815)
43.18 (1.223)
22 (559)
26.96 (0.763)
40.97 (1.160)
21 (533)
25.10 (0.711)
38.72 (1.096)
20 (508)
23.19 (0.657)
36.45 (1.032)
19 (483)
21.25 (0.602)
34.16 (0.967)
18 (457)
19.26 (0.545)
31.84 (0.902)
17 (432)
17.24 (0.488)
29.50 (0.835)
16 (406)
15.19 (0.430)
27.14 (0.769)
15 (381)
13.10 (0.371)
24.76 (0.701)
14 (356)
10.98 (0.311)
22.36 (0.633)
13 (330)
8.83 (0.250)
19.95 (0.565)
12 (305)
6.66 (0.189)
17.52 (0.496)
11 (279)
4.46 (0.126)
15.07 (0.427)
10 (254)
2.24 (0.064)
12.61 (0.357)
Depth of Water in
System Inches (mm)
Cumulative Chamber
Storage ft
3
(m
3
)
Total System Cumulative
Storage ft
3
(m
3
)
9 (229)
0 (0)
10.14 (0.287)
8 (203)
0 (0)
9.01 (0.255)
7 (178)
0 (0)
7.89 (0.223)
6 (152)
0 (0)
6.76 (0.191)
5 (127)
0 (0)
5.63 (0.160)
4 (102)
0 (0)
4.51 (0.128)
3 (76)
0 (0)
3.38 (0.096)
2 (51)
0 (0)
2.25 (0.064)
1 (25)
0 (0)
1.13 (0.032)
Stone Foundation
Stone
Cover
Summary of Contents for StormTech DC-780
Page 2: ...An company TOOL 2 0 DESIGN ...
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