The NCPI Toolbox is a set of four programs that can assist in the design of gravity flow sewers using Vitrified Clay Pipe. The programs will calculate flow, safety factor, cost of bedding and lifecycle cost impact.
The National Clay Pipe Institute makes a number of materials available for those who desire more detailed information on the design, installation and uses of VCP. Take a look at the list of resources currently available from NCPI.
The NCPI Gravity Flow Hydraulic Calculator may be used to solve the various parameters of Manning's Open Channel Flow Equation. This wheel calculator is an effective tool for sizing pipe, determining flow rates and velocities, and depth of flow.