Post on 10-Oct-2020
1
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
ECONODRAIN® #4 SYSTEM - HYDRAULIC DATA
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.
Standard Depth & Slope1 Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS
[Slope [St] = 0.5% or 0.005 ft/ft] Qmax
2 Qmax 2 (Fk is not a Flow Rate) Qmax
2 Qmax 2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (Fk is not a Flow Rate) (Fk is not a Flow Rate)
0404 4 1/4 4 3/4 0.23 102 3.14 1,408 0.25 113 3.48 1,560
0405 4 3/4 5 1/4 0.27 119 3.69 1,655 0.29 130 4.02 1,804
0406 5 1/4 5 3/4 0.31 137 4.24 1,904 0.33 148 4.57 2,050
0407 5 3/4 6 1/4 0.35 156 4.80 2,155 0.37 166 5.12 2,298
0408 6 1/4 6 3/4 0.39 174 5.36 2,408 0.41 184 5.68 2,548
0409 6 3/4 7 1/4 0.43 192 5.93 2,662 0.45 202 6.24 2,800
0410 7 1/4 7 3/4 0.47 211 6.50 2,917 0.49 220 6.80 3,053
0411 7 3/4 8 1/4 0.51 229 7.07 3,173 0.53 239 7.37 3,307
0412 8 1/4 8 3/4 0.55 248 7.64 3,430 0.57 257 7.94 3,562
0413 8 3/4 9 1/4 0.59 266 8.21 3,687 0.61 275 8.50 3,817
0414 9 1/4 9 3/4 0.63 285 8.79 3,945 0.65 294 9.08 4,073
0415 9 3/4 10 1/4 0.68 303 9.36 4,203 0.70 312 9.65 4,330
0416 10 1/4 10 3/4 0.72 322 9.94 4,462 0.74 331 10.22 4,587
0417 10 3/4 11 1/4 0.76 341 10.52 4,721 0.78 350 10.79 4,845
0418 11 1/4 11 3/4 0.80 359 11.10 4,980 0.82 368 11.37 5,103
0419 11 3/4 12 1/4 0.84 378 11.67 5,240 0.86 387 11.95 5,361
0420 12 1/4 12 3/4 0.88 397 12.25 5,500 0.90 406 12.52 5,620
0421 12 3/4 13 1/4 0.93 416 12.83 5,760 0.95 424 13.10 5,879
0422 13 1/4 13 3/4 0.97 434 13.41 6,020 0.99 443 13.68 6,138
0423 13 3/4 14 1/4 1.01 453 13.99 6,280 1.03 462 14.25 6,398
0424 14 1/4 14 3/4 1.05 472 14.57 6,541 1.07 480 14.83 6,657
0425 14 3/4 15 1/4 1.09 491 15.15 6,801 1.11 499 15.41 6,917
0426 15 1/4 15 3/4 1.14 510 15.73 7,062 1.15 518 15.99 7,177
0427 15 3/4 16 1/4 1.18 528 16.32 7,323 1.20 537 16.57 7,437
0428 16 1/4 16 3/4 1.22 547 16.90 7,584 1.24 556 17.15 7,697
0429 16 3/4 17 1/4 1.26 566 17.48 7,845 1.28 574 17.73 7,958
0430 17 1/4 17 3/4 1.30 585 18.06 8,106 1.32 593 18.31 8,218
0431 17 3/4 18 1/4 1.35 604 18.64 8,367 1.36 612 18.89 8,479
0432 18 1/4 18 3/4 1.39 623 19.23 8,629 1.41 631 19.47 8,739
0433 18 3/4 19 1/4 1.43 642 19.81 8,890 1.45 650 20.05 9,000
0434 19 1/4 19 3/4 1.47 660 20.39 9,152 1.49 668 20.63 9,261
0435 19 3/4 20 1/4 1.51 679 20.97 9,413 1.53 687 21.22 9,522
0436 20 1/4 20 3/4 1.56 698 21.56 9,675 1.57 706 21.80 9,783
0437 20 3/4 21 1/4 1.60 717 22.14 9,936 1.62 725 22.38 10,044
0438 21 1/4 21 3/4 1.64 736 22.72 10,198 1.66 744 22.96 10,305
0439 21 3/4 22 1/4 1.68 755 23.30 10,460 1.70 763 23.54 10,567
0440 22 1/4 22 3/4 1.72 774 23.89 10,721 1.74 781 24.12 10,828
0441 22 3/4 23 1/4 1.77 793 24.47 10,983 1.78 800 24.71 11,089
0442 23 1/4 23 3/4 1.81 812 25.05 11,245 1.83 819 25.29 11,351
0443 23 3/4 24 1/4 1.85 830 25.64 11,507 1.87 838 25.87 11,612
0444 24 1/4 24 3/4 1.89 849 26.22 11,768 1.91 857 26.45 11,874
0445 24 3/4 25 1/4 1.93 868 26.80 12,030 1.95 876 27.04 12,135
®
2
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
ECONODRAIN® #6 SYSTEM - HYDRAULIC DATA
Standard Depth & Slope1 Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS [Slope [St] = 0.5% or 0.005 ft/ft] Qmax 2 Qmax
2 (Fk is not a Flow Rate) Qmax 2 Qmax
2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm)
(Fk is not a Flow Rate) (Fk is not a Flow Rate)
0606 6 6 1/2 0.45 200 6.17 2,770 0.50 224 6.91 3,101
0607 6 1/2 7 0.51 228 7.05 3,165 0.56 252 7.78 3,490
0608 7 7 1/2 0.57 257 7.94 3,563 0.62 280 8.65 3,884
0609 7 1/2 8 0.64 286 8.83 3,965 0.69 309 9.54 4,281
0610 8 8 1/2 0.70 315 9.74 4,370 0.75 338 10.43 4,681
0611 8 1/2 9 0.77 345 10.64 4,776 0.82 367 11.33 5,084
0612 9 9 1/2 0.83 374 11.55 5,185 0.88 396 12.23 5,488
0613 9 1/2 10 0.90 404 12.47 5,595 0.95 425 13.13 5,894
0614 10 10 1/2 0.97 433 13.38 6,007 1.01 455 14.04 6,302
0615 10 1/2 11 1.03 463 14.30 6,419 1.08 484 14.95 6,711
0616 11 11 1/2 1.10 493 15.22 6,833 1.15 514 15.87 7,122
0617 11 1/2 12 1.17 523 16.15 7,248 1.21 544 16.78 7,533
0618 12 12 1/2 1.23 553 17.07 7,663 1.28 573 17.70 7,945
0619 12 1/2 13 1.30 583 18.00 8,079 1.34 603 18.62 8,359
0620 13 13 1/2 1.37 613 18.93 8,496 1.41 633 19.55 8,772
0621 13 1/2 14 1.43 643 19.86 8,913 1.48 663 20.47 9,187
0622 14 14 1/2 1.50 673 20.79 9,330 1.54 693 21.39 9,602
0623 14 1/2 15 1.57 704 21.72 9,748 1.61 723 22.32 10,018
0624 15 15 1/2 1.63 734 22.65 10,167 1.68 753 23.25 10,434
0625 15 1/2 16 1.70 764 23.59 10,586 1.74 783 24.18 10,851
0626 16 16 1/2 1.77 794 24.52 11,005 1.81 813 25.11 11,268
0627 16 1/2 17 1.84 824 25.45 11,424 1.88 843 26.04 11,686
0628 17 17 1/2 1.90 855 26.39 11,844 1.95 873 26.97 12,103
0629 17 1/2 18 1.97 885 27.32 12,264 2.01 904 27.90 12,522
0630 18 18 1/2 2.04 915 28.26 12,684 2.08 934 28.83 12,940
0631 18 1/2 19 2.11 946 29.20 13,105 2.15 964 29.76 13,359
0632 19 19 1/2 2.17 976 30.13 13,525 2.22 994 30.70 13,778
0633 19 1/2 20 2.24 1006 31.07 13,946 2.28 1025 31.63 14,197
0634 20 20 1/2 2.31 1037 32.01 14,367 2.35 1055 32.57 14,617
0635 20 1/2 21 2.38 1067 32.95 14,788 2.42 1085 33.50 15,037
0636 21 21 1/2 2.45 1098 33.89 15,209 2.49 1115 34.44 15,456
0637 21 1/2 22 2.51 1128 34.83 15,631 2.55 1146 35.37 15,877
0638 22 22 1/2 2.58 1158 35.76 16,052 2.62 1176 36.31 16,297
0639 22 1/2 23 2.65 1189 36.70 16,474 2.69 1206 37.25 16,717
0640 23 23 1/2 2.72 1219 37.64 16,895 2.76 1237 38.18 17,138
0641 23 1/2 24 2.78 1250 38.58 17,317 2.82 1267 39.12 17,559
0642 24 24 1/2 2.85 1280 39.52 17,739 2.89 1298 40.06 17,979
0643 24 1/2 25 2.92 1311 40.46 18,161 2.96 1328 41.00 18,400
0644 25 25 1/2 2.99 1341 41.40 18,583 3.03 1358 41.93 18,822
0645 25 1/2 26 3.06 1372 42.34 19,005 3.09 1389 42.87 19,243
®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.
3
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
ECONODRAIN® #8 & PT-2 #8 SYSTEM - HYDRAULIC DATA
Standard Depth & Slope1 Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS [Slope [St] = 0.5% or 0.005 ft/ft] Qmax 2 Qmax
2 (Fk is not a Flow Rate) Qmax 2 Qmax
2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm)
(Fk is not a Flow Rate) (Fk is not a Flow Rate)
0806 6 6 1/2 0.63 281 8.68 3,895 0.74 334 10.32 4,630
0807 6 1/2 7 0.72 325 10.04 4,506 0.84 378 11.66 5,235
0808 7 7 1/2 0.82 370 11.42 5,126 0.94 422 13.03 5,848
0809 7 1/2 8 0.93 415 12.82 5,755 1.04 467 14.41 6,469
0810 8 8 1/2 1.03 461 14.24 6,389 1.14 512 15.81 7,096
0811 8 1/2 9 1.13 507 15.66 7,029 1.24 558 17.22 7,728
0812 9 9 1/2 1.23 554 17.10 7,674 1.35 604 18.64 8,365
0813 9 1/2 10 1.34 601 18.54 8,322 1.45 650 20.07 9,006
0814 10 10 1/2 1.44 648 19.99 8,974 1.55 696 21.50 9,651
0815 10 1/2 11 1.55 695 21.45 9,629 1.66 743 22.94 10,298
0816 11 11 1/2 1.65 742 22.92 10,287 1.76 790 24.39 10,949
0817 11 1/2 12 1.76 790 24.39 10,946 1.87 837 25.85 11,601
0818 12 12 1/2 1.87 838 25.86 11,608 1.97 885 27.31 12,257
0819 12 1/2 13 1.97 886 27.34 12,271 2.08 932 28.77 12,914
0820 13 13 1/2 2.08 934 28.82 12,936 2.18 980 30.24 13,573
0821 13 1/2 14 2.19 982 30.31 13,602 2.29 1027 31.71 14,233
0822 14 14 1/2 2.29 1030 31.79 14,270 2.40 1075 33.19 14,895
0823 14 1/2 15 2.40 1078 33.28 14,939 2.50 1123 34.66 15,559
0824 15 15 1/2 2.51 1126 34.78 15,609 2.61 1171 36.15 16,223
0825 15 1/2 16 2.62 1175 36.27 16,279 2.72 1219 37.63 16,889
0826 16 16 1/2 2.73 1223 37.77 16,951 2.82 1267 39.11 17,556
0827 16 1/2 17 2.83 1272 39.26 17,623 2.93 1315 40.60 18,224
0828 17 17 1/2 2.94 1320 40.76 18,296 3.04 1363 42.09 18,892
0829 17 1/2 18 3.05 1369 42.27 18,970 3.15 1412 43.58 19,562
0830 18 18 1/2 3.16 1418 43.77 19,644 3.25 1460 45.08 20,232
0831 18 1/2 19 3.27 1466 45.27 20,319 3.36 1509 46.57 20,903
0832 19 19 1/2 3.38 1515 46.78 20,994 3.47 1557 48.07 21,575
0833 19 1/2 20 3.48 1564 48.28 21,670 3.58 1606 49.57 22,247
0834 20 20 1/2 3.59 1613 49.79 22,347 3.69 1654 51.07 22,920
0835 20 1/2 21 3.70 1662 51.30 23,023 3.79 1703 52.57 23,593
0836 21 21 1/2 3.81 1710 52.80 23,700 3.90 1751 54.07 24,267
0837 21 1/2 22 3.92 1759 54.31 24,378 4.01 1800 55.57 24,941
0838 22 22 1/2 4.03 1808 55.82 25,056 4.12 1849 57.07 25,616
0839 22 1/2 23 4.14 1857 57.33 25,734 4.23 1897 58.58 26,291
0840 23 23 1/2 4.25 1906 58.85 26,412 4.34 1946 60.08 26,967
0841 23 1/2 24 4.36 1955 60.36 27,091 4.44 1995 61.59 27,643
0842 24 24 1/2 4.47 2004 61.87 27,770 4.55 2044 63.10 28,319
0843 24 1/2 25 4.57 2053 63.38 28,449 4.66 2093 64.60 28,996
0844 25 25 1/2 4.68 2102 64.90 29,128 4.77 2141 66.11 29,673
0845 25 1/2 26 4.79 2151 66.41 29,808 4.88 2190 67.62 30,350
®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.
4
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
ECONODRAIN® #10 SYSTEM - HYDRAULIC DATA
Standard Depth & Slope1 Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS [Slope [St] = 0.5% or 0.005 ft/ft] Qmax 2 Qmax
2 (Fk is not a Flow Rate) Qmax 2 Qmax
2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm)
(Fk is not a Flow Rate) (Fk is not a Flow Rate)
1010 8 8 1/2 1.35 606 18.70 8,393 1.56 701 21.64 9,713
1011 8 1/2 9 1.49 671 20.71 9,295 1.70 765 23.62 10,604
1012 9 9 1/2 1.64 736 22.74 10,205 1.85 830 25.63 11,503
1013 9 1/2 10 1.79 803 24.78 11,123 2.00 896 27.65 12,410
1014 10 10 1/2 1.94 869 26.84 12,048 2.14 962 29.68 13,323
1015 10 1/2 11 2.09 937 28.92 12,978 2.29 1028 31.73 14,243
1016 11 11 1/2 2.24 1004 31.00 13,914 2.44 1095 33.79 15,167
1017 11 1/2 12 2.39 1072 33.09 14,854 2.59 1162 35.86 16,096
1018 12 12 1/2 2.54 1140 35.20 15,798 2.74 1229 37.94 17,029
1019 12 1/2 13 2.69 1209 37.31 16,746 2.89 1297 40.03 17,967
1020 13 13 1/2 2.85 1277 39.43 17,697 3.04 1365 42.13 18,907
1021 13 1/2 14 3.00 1346 41.55 18,651 3.19 1433 44.23 19,851
1022 14 14 1/2 3.15 1415 43.69 19,607 3.34 1501 46.34 20,798
1023 14 1/2 15 3.31 1484 45.82 20,566 3.50 1569 48.45 21,747
1024 15 15 1/2 3.46 1554 47.96 21,527 3.65 1638 50.57 22,699
1025 15 1/2 16 3.62 1623 50.11 22,490 3.80 1707 52.70 23,653
1026 16 16 1/2 3.77 1693 52.26 23,455 3.96 1776 54.83 24,609
1027 16 1/2 17 3.93 1762 54.41 24,421 4.11 1845 56.96 25,567
1028 17 17 1/2 4.08 1832 56.57 25,389 4.27 1914 59.10 26,526
1029 17 1/2 18 4.24 1902 58.73 26,358 4.42 1984 61.24 27,488
1030 18 18 1/2 4.39 1972 60.89 27,329 4.57 2053 63.39 28,451
1031 18 1/2 19 4.55 2042 63.05 28,300 4.73 2123 65.54 29,415
1032 19 19 1/2 4.71 2113 65.22 29,273 4.88 2193 67.69 30,380
1033 19 1/2 20 4.86 2183 67.39 30,247 5.04 2262 69.84 31,347
1034 20 20 1/2 5.02 2253 69.56 31,221 5.20 2332 72.00 32,315
1035 20 1/2 21 5.18 2324 71.73 32,197 5.35 2402 74.16 33,284
1036 21 21 1/2 5.33 2394 73.91 33,173 5.51 2472 76.32 34,254
1037 21 1/2 22 5.49 2465 76.09 34,150 5.66 2542 78.48 35,225
1038 22 22 1/2 5.65 2535 78.27 35,128 5.82 2612 80.65 36,197
1039 22 1/2 23 5.81 2606 80.45 36,107 5.98 2683 82.82 37,170
1040 23 23 1/2 5.96 2676 82.63 37,086 6.13 2753 84.98 38,144
1041 23 1/2 24 6.12 2747 84.81 38,065 6.29 2823 87.15 39,118
1042 24 24 1/2 6.28 2818 86.99 39,046 6.45 2893 89.33 40,093
1043 24 1/2 25 6.44 2889 89.18 40,026 6.60 2964 91.50 41,069
1044 25 25 1/2 6.59 2959 91.37 41,008 6.76 3034 93.68 42,045
1045 25 1/2 26 6.75 3030 93.55 41,989 6.92 3105 95.85 43,022
®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.
5
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
ECONODRAIN® #12 & PT-2 #12 SYSTEM - HYDRAULIC DATA
Standard Depth & Slope1 Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS
[Slope [St] = 0.5% or 0.005 ft/ft] Qmax
2 Qmax 2 (Fk is not a Flow Rate) Qmax
2 Qmax 2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm)
(Fk is not a Flow Rate) (Fk is not a Flow Rate)
1210 8 8 1/2 1.66 743 22.95 10,302 2.01 900 27.80 12,478
1211 8 1/2 9 1.85 829 25.59 11,484 2.19 985 30.41 13,650
1212 9 9 1/2 2.04 915 28.25 12,681 2.39 1071 33.06 14,836
1213 9 1/2 10 2.23 1003 30.95 13,892 2.58 1157 35.72 16,034
1214 10 10 1/2 2.43 1091 33.67 15,114 2.77 1244 38.42 17,243
1215 10 1/2 11 2.63 1180 36.42 16,347 2.97 1332 41.13 18,461
1216 11 11 1/2 2.83 1269 39.19 17,588 3.17 1421 43.86 19,687
1217 11 1/2 12 3.03 1359 41.97 18,837 3.36 1510 46.61 20,921
1218 12 12 1/2 3.23 1450 44.77 20,094 3.56 1599 49.38 22,162
1219 12 1/2 13 3.43 1541 47.58 21,357 3.76 1689 52.16 23,410
1220 13 13 1/2 3.64 1633 50.41 22,625 3.97 1780 54.95 24,663
1221 13 1/2 14 3.84 1725 53.25 23,899 4.17 1871 57.75 25,922
1222 14 14 1/2 4.05 1817 56.09 25,177 4.37 1962 60.57 27,185
1223 14 1/2 15 4.25 1910 58.95 26,459 4.58 2053 63.39 28,453
1224 15 15 1/2 4.46 2002 61.82 27,746 4.78 2145 66.23 29,725
1225 15 1/2 16 4.67 2095 64.69 29,035 4.98 2237 69.07 31,001
1226 16 16 1/2 4.88 2189 67.57 30,328 5.19 2330 71.92 32,280
1227 16 1/2 17 5.08 2282 70.46 31,624 5.40 2422 74.78 33,563
1228 17 17 1/2 5.29 2376 73.35 32,923 5.60 2515 77.64 34,848
1229 17 1/2 18 5.50 2470 76.25 34,224 5.81 2608 80.51 36,137
1230 18 18 1/2 5.71 2564 79.15 35,527 6.02 2701 83.39 37,428
1231 18 1/2 19 5.92 2658 82.06 36,833 6.23 2794 86.27 38,721
1232 19 19 1/2 6.13 2753 84.98 38,140 6.43 2888 89.16 40,017
1233 19 1/2 20 6.34 2847 87.89 39,449 6.64 2982 92.05 41,315
1234 20 20 1/2 6.55 2942 90.81 40,760 6.85 3075 94.95 42,614
1235 20 1/2 21 6.77 3036 93.74 42,073 7.06 3169 97.85 43,916
1236 21 21 1/2 6.98 3131 96.67 43,387 7.27 3263 100.75 45,220
1237 21 1/2 22 7.19 3226 99.60 44,702 7.48 3358 103.66 46,525
1238 22 22 1/2 7.40 3321 102.53 46,019 7.69 3452 106.57 47,832
1239 22 1/2 23 7.61 3416 105.47 47,337 7.90 3546 109.48 49,140
1240 23 23 1/2 7.82 3511 108.41 48,656 8.11 3641 112.40 50,450
1241 23 1/2 24 8.04 3607 111.35 49,977 8.32 3736 115.32 51,761
1242 24 24 1/2 8.25 3702 114.29 51,298 8.53 3830 118.25 53,073
1243 24 1/2 25 8.46 3798 117.24 52,620 8.74 3925 121.17 54,387
1244 25 25 1/2 8.67 3893 120.19 53,943 8.96 4020 124.10 55,701
1245 25 1/2 26 8.89 3989 123.14 55,267 9.17 4115 127.03 57,017
®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.
6
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
ECONODRAIN® #15 SYSTEM - HYDRAULIC DATA
Standard Depth & Slope1 Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS
[Slope [St] = 0.5% or 0.005 ft/ft] Qmax
2 Qmax 2 (Fk is not a Flow Rate) Qmax
2 Qmax 2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm)
(Fk is not a Flow Rate) (Fk is not a Flow Rate)
1518 12 12 1/2 4.26 1914 59.08 26,515 4.89 2193 67.70 30,384
1519 12 1/2 13 4.55 2042 63.04 28,296 5.17 2320 71.62 32,144
1520 13 13 1/2 4.84 2171 67.03 30,087 5.45 2448 75.56 33,915
1521 13 1/2 14 5.13 2301 71.05 31,889 5.74 2576 79.53 35,695
1522 14 14 1/2 5.42 2432 75.09 33,701 6.03 2705 83.52 37,484
1523 14 1/2 15 5.71 2563 79.14 35,520 6.32 2835 87.52 39,282
1524 15 15 1/2 6.01 2695 83.21 37,347 6.61 2965 91.54 41,086
1525 15 1/2 16 6.30 2828 87.30 39,182 6.90 3096 95.58 42,899
1526 16 16 1/2 6.60 2961 91.40 41,022 7.19 3227 99.63 44,717
1527 16 1/2 17 6.89 3094 95.51 42,869 7.48 3359 103.70 46,542
1528 17 17 1/2 7.19 3227 99.64 44,721 7.78 3491 107.77 48,373
1529 17 1/2 18 7.49 3361 103.78 46,578 8.07 3623 111.86 50,208
1530 18 18 1/2 7.79 3496 107.92 48,440 8.37 3756 115.97 52,049
1531 18 1/2 19 8.09 3631 112.08 50,306 8.67 3890 120.08 53,895
1532 19 19 1/2 8.39 3766 116.25 52,177 8.96 4023 124.20 55,745
1533 19 1/2 20 8.69 3901 120.43 54,051 9.26 4157 128.33 57,599
1534 20 20 1/2 8.99 4036 124.61 55,928 9.56 4291 132.47 59,457
1535 20 1/2 21 9.30 4172 128.80 57,809 9.86 4425 136.62 61,319
1536 21 21 1/2 9.60 4308 133.00 59,693 10.16 4560 140.77 63,184
1537 21 1/2 22 9.90 4444 137.20 61,580 10.46 4695 144.94 65,052
1538 22 22 1/2 10.21 4580 141.41 63,469 10.76 4830 149.11 66,924
1539 22 1/2 23 10.51 4717 145.63 65,361 11.06 4965 153.28 68,798
1540 23 23 1/2 10.81 4854 149.85 67,256 11.36 5101 157.47 70,675
1541 23 1/2 24 11.12 4991 154.07 69,153 11.67 5236 161.65 72,555
1542 24 24 1/2 11.42 5128 158.30 71,051 11.97 5372 165.85 74,437
1543 24 1/2 25 11.73 5265 162.54 72,952 12.27 5508 170.05 76,322
1544 25 25 1/2 12.04 5402 166.78 74,855 12.58 5644 174.25 78,209
1545 25 1/2 26 12.34 5540 171.02 76,760 12.88 5781 178.46 80,098
1546 26 26 1/2 12.65 5677 175.27 78,666 13.18 5917 182.67 81,989
1547 26 1/2 27 12.96 5815 179.52 80,574 13.49 6054 186.89 83,882
1548 27 27 1/2 13.26 5953 183.77 82,483 13.79 6190 191.11 85,777
1549 27 1/2 28 13.57 6091 188.03 84,394 14.10 6327 195.34 87,674
1550 28 28 1/2 13.88 6229 192.29 86,306 14.40 6464 199.57 89,572
®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.
7
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
ECONODRAIN® #18 SYSTEM - HYDRAULIC DATA
Standard Depth & Slope1 Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS
[Slope [St] = 0.5% or 0.005 ft/ft] Qmax
2 Qmax 2 (Fk is not a Flow Rate) Qmax
2 Qmax 2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm)
(Fk is not a Flow Rate) (Fk is not a Flow Rate)
1818 12 12 1/2 5.26 2359 72.84 32,691 6.29 2821 87.09 39,088
1819 12 1/2 13 5.63 2528 78.05 35,030 6.66 2988 92.26 41,407
1820 13 13 1/2 6.01 2698 83.30 37,388 7.03 3157 97.46 43,742
1821 13 1/2 14 6.39 2870 88.59 39,764 7.41 3326 102.70 46,093
1822 14 14 1/2 6.78 3042 93.92 42,155 7.79 3497 107.97 48,459
1823 14 1/2 15 7.17 3216 99.28 44,562 8.17 3669 113.27 50,837
1824 15 15 1/2 7.55 3391 104.67 46,981 8.56 3841 118.59 53,228
1825 15 1/2 16 7.95 3566 110.09 49,413 8.95 4015 123.95 55,631
1826 16 16 1/2 8.34 3742 115.53 51,856 9.33 4189 129.32 58,044
1827 16 1/2 17 8.73 3919 121.00 54,309 9.72 4364 134.72 60,468
1828 17 17 1/2 9.13 4097 126.49 56,772 10.11 4539 140.14 62,900
1829 17 1/2 18 9.53 4276 132.00 59,244 10.51 4716 145.58 65,342
1830 18 18 1/2 9.92 4455 137.52 61,724 10.90 4892 151.04 67,792
1831 18 1/2 19 10.32 4634 143.06 64,212 11.30 5070 156.52 70,250
1832 19 19 1/2 10.73 4814 148.62 66,707 11.69 5248 162.01 72,715
1833 19 1/2 20 11.13 4995 154.20 69,208 12.09 5426 167.52 75,187
1834 20 20 1/2 11.53 5176 159.78 71,716 12.49 5605 173.04 77,666
1835 20 1/2 21 11.94 5357 165.39 74,230 12.89 5784 178.58 80,151
1836 21 21 1/2 12.34 5539 171.00 76,750 13.29 5964 184.13 82,641
1837 21 1/2 22 12.75 5721 176.62 79,274 13.69 6144 189.69 85,138
1838 22 22 1/2 13.15 5904 182.26 81,803 14.09 6325 195.26 87,639
1839 22 1/2 23 13.56 6087 187.90 84,337 14.49 6506 200.85 90,146
1840 23 23 1/2 13.97 6270 193.56 86,876 14.90 6687 206.44 92,657
1841 23 1/2 24 14.38 6453 199.22 89,418 15.30 6868 212.04 95,172
1842 24 24 1/2 14.79 6637 204.90 91,964 15.71 7050 217.66 97,692
1843 24 1/2 25 15.20 6821 210.58 94,514 16.11 7232 223.28 100,216
1844 25 25 1/2 15.61 7005 216.27 97,067 16.52 7415 228.91 102,744
1845 25 1/2 26 16.02 7190 221.96 99,624 16.93 7598 234.55 105,275
1846 26 26 1/2 16.43 7374 227.67 102,183 17.34 7781 240.20 107,810
1847 26 1/2 27 16.84 7559 233.37 104,746 17.74 7964 245.86 110,349
1848 27 27 1/2 17.25 7745 239.09 107,311 18.15 8147 251.52 112,890
1849 27 1/2 28 17.67 7930 244.81 109,879 18.56 8331 257.19 115,435
1850 28 28 1/2 18.08 8115 250.54 112,450 18.97 8515 262.87 117,983
®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.
8
Manufacturers of EconoDrain®, MultiDrain®, Alfa Channel® and Alfa Slot®
ECONODRAIN® #24 SYSTEM - HYDRAULIC DATA Standard Depth & Slope1
Radius Bottom Trench (Std.) Rectangular Trench (Optional Custom)
EPS [Slope [St] = 0.5% or 0.005 ft/ft] Qmax 2 Qmax
2 (Fk is not a Flow Rate) Qmax 2 Qmax
2 (Fk is not a Flow Rate)
Form Min. Max. Flow Flow Fk3 Fk
3 Flow Flow Fk3 Fk
3
Number (in) (in) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm) (cfs) (gpm)
(Fk is not a Flow Rate) (Fk is not a Flow Rate) 2424 15 15 1/2 10.52 4,721 145.74 65,412 12.74 5,718 176.52 79,227
2425 15 1/2 16 11.12 4,991 154.07 69,152 13.34 5,986 184.79 82,939
2426 16 16 1/2 11.72 5,262 162.46 72,917 13.94 6,255 193.11 86,674
2427 16 1/2 17 12.33 5,536 170.90 76,707 14.54 6,526 201.48 90,429
2428 17 17 1/2 12.95 5,811 179.40 80,520 15.15 6,799 209.89 94,205
2429 17 1/2 18 13.56 6,088 187.94 84,354 15.76 7,072 218.34 97,999
2430 18 18 1/2 14.18 6,366 196.53 88,208 16.37 7,348 226.84 101,811
2431 18 1/2 19 14.81 6,645 205.15 92,080 16.99 7,624 235.37 105,640
2432 19 19 1/2 15.43 6,926 213.82 95,969 17.60 7,901 243.93 109,484
2433 19 1/2 20 16.06 7,208 222.52 99,874 18.22 8,180 252.53 113,344
2434 20 20 1/2 16.69 7,491 231.26 103,795 18.85 8,459 261.16 117,218
2435 20 1/2 21 17.32 7,775 240.02 107,729 19.47 8,740 269.82 121,105
2436 21 21 1/2 17.96 8,060 248.82 111,677 20.10 9,021 278.51 125,005
2437 21 1/2 22 18.59 8,345 257.64 115,638 20.73 9,304 287.23 128,918
2438 22 22 1/2 19.23 8,632 266.49 119,611 21.36 9,587 295.97 132,842
2439 22 1/2 23 19.87 8,920 275.37 123,594 21.99 9,871 304.74 136,777
2440 23 23 1/2 20.52 9,208 284.27 127,589 22.63 10,156 313.53 140,722
2441 23 1/2 24 21.16 9,497 293.19 131,593 23.26 10,441 322.34 144,678
2442 24 24 1/2 21.80 9,787 302.13 135,607 23.90 10,727 331.18 148,643
2443 24 1/2 25 22.45 10,077 311.10 139,630 24.54 11,014 340.03 152,618
2444 25 25 1/2 23.10 10,368 320.08 143,661 25.18 11,302 348.91 156,601
2445 25 1/2 26 23.75 10,659 329.08 147,701 25.82 11,590 357.80 160,593
2446 26 26 1/2 24.40 10,951 338.10 151,748 26.47 11,878 366.71 164,593
2447 26 1/2 27 25.05 11,244 347.13 155,802 27.11 12,168 375.64 168,600
2448 27 27 1/2 25.70 11,537 356.18 159,864 27.76 12,457 384.59 172,615
2449 27 1/2 28 26.36 11,831 365.24 163,932 28.40 12,748 393.55 176,637
2450 28 28 1/2 27.01 12,125 374.32 168,007 29.05 13,038 402.52 180,665
2451 28 1/2 29 27.67 12,419 383.41 172,088 29.70 13,330 411.51 184,700
2452 29 29 1/2 28.33 12,714 392.52 176,174 30.35 13,621 420.52 188,742
2453 29 1/2 30 28.99 13,010 401.63 180,266 31.00 13,913 429.54 192,789
2454 30 30 1/2 29.64 13,305 410.76 184,363 31.65 14,206 438.57 196,842
2455 30 1/2 31 30.30 13,601 419.90 188,466 32.30 14,499 447.61 200,901
2456 31 31 1/2 30.96 13,898 429.05 192,573 32.96 14,792 456.66 204,965
2457 31 1/2 32 31.63 14,194 438.22 196,685 33.61 15,086 465.73 209,035
2458 32 32 1/2 32.29 14.492 447.39 200,801 34.27 15,380 474.81 213,109
2459 32 1/2 33 32.95 14,789 456.57 204,922 34.92 15,674 483.90 217,188
2460 33 33 1/2 33.61 15,087 465.76 209,046 35.58 15,969 493.00 221,272
2461 33 1/2 34 34.28 15,385 474.96 213,175 36.24 16,264 502.10 225,360
2462 34 34 1/2 34.94 15,683 484.16 217,308 36.89 16,559 511.22 229,453
2463 34 1/2 35 35.61 15.981 493.38 221,444 37.55 16,855 520.35 233,549
2464 35 35 1/2 36.27 16,280 502.60 225,583 38.21 17,151 529.49 237,650
2465 35 1/2 36 36.94 16,579 511.83 229,726 38.87 17,447 538.63 241,754
2466 36 36 1/2 37.60 16,878 521.07 233,872 39.53 17,744 547.78 245,863
2467 36 1/2 37 38.27 17,178 530.31 238,022 40.19 18,040 556.95 249,975
2468 37 37 1/2 38.94 17,477 539.57 242,174 40.86 18,337 566.12 254,090
2469 37 1/2 38 39.61 17,777 548.82 246,330 41.52 18,635 575.29 258,209
2470 38 38 1/2 40.28 18,077 558.09 250,488 42.18 18,932 584.48 262,331
2471 38 1/2 39 40.95 18,378 567.36 254,649 42.84 19,230 593.67 266,457
2472 39 39 1/2 41.62 18,678 576.64 258,812 43.51 19,528 602.87 270,585
2473 39 1/2 40 42.28 18,979 585.92 262,978 44.17 19,826 612.07 274,717
2474 40 40 1/2 42.96 19,280 595.20 267,146 44.84 20,124 621.28 278,851
2475 40 1/2 41 43.63 19,581 604.50 271,317 45.50 20,423 630.50 282,988
®
1. Standard Depth is measured from the top of the grate rail to the trench invert. 2. Qmax is based on Manning’s Equation n = 0.13 and St = 0.5%. The outlet end depth flow area is utilized and the grate area is excluded. The flow values shown do not
include site grade slope. 3. Fk is used to include site grade slope in trench flow calculations. The equation is: Flow, Q = Fk x (Ss + St)
1/2 where Ss is the site slope and St is the trench form slope (ft/ft), (dimensionless).
MultiDrain Systems, Inc. 1405 Industrial Drive • Statesville, NC 28625 • (704) 508-1010 • (800) 433-1119 • Fax (704) 508-1011 • md.multidrainsystems.com
“DISCLAIMER: The customer and the customer’s architects, engineers, consultants and other professionals are completely responsible for the selection, installation, and mainte-
nance of any product purchased from MULTIDRAIN SYSTEMS, INC., and EXCEPT AS EXPRESSLY PROVIDED IN MULTIDRAIN’S STANDARD WARRANTIES, MULTIDRAIN
MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE SUITABILITY, DESIGN, MERCHANTABILITY, OR FITNESS OF THE PRODUCT FOR CUSTOMER’S APPLICA-
TION. Copies of MultiDrain’s standard warranties are available upon request.”
MultiDrain Systems, Inc. Trade Mark Products: Alfa Channel®, Alfa Slot®, EconoDrain® and MultiDrain® These products are protected by one or more U.S. patents. Copyright © Nov. 2014 MultiDrain Systems, Inc.