French Drain Equations Formulas Design Calculator
Fluid Mechanics Hydraulics
Solving for flow line slope.

Inputs:
Conversions:
| seepage rate or flow per foot of trench (QL) | = | 0 | | = | 0 | foot^3/day-foot |
| permeability (K) | = | 0 | | = | 0 | foot/day |
| area normal to seepage flow/foot of trench (A) | = | 0 | | = | 0 | foot^2/foot |
Solution:
| flow line slope (S) | = | HAS NOT BEEN CALCULATED | |
Other Units:
References - Books:
Martin Wanielista, Robert Kersten and Ron Eaglin. 1997. Hydrology Water Quantity and Quality Control. John Wiley & Sons. 2nd ed.