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Pipe Size
Calculator

Pipe Size vs. Drainage Coefficient
Q(c.f.s)
1/8 1/4 3/8 1/2 3/4 1
Single Wall Pipe
Vel.(ft/sec)
1/8 1/4 3/8 1/2 3/4 1
Calculated Size
1/8 1/4 3/8 1/2 3/4 1
Commercial Size
1/8 1/4 3/8 1/2 3/4 1
Dual Wall Pipe
Vel.(ft/sec)
1/8 1/4 3/8 1/2 3/4 1
Calculated Size
1/8 1/4 3/8 1/2 3/4 1
Commercial Size
1/8 1/4 3/8 1/2 3/4 1