#nonpressure pipe

[univellpvc]

This calculator determines velocity, flow rate, or slope in PVC gravity sewer pipe using the Manning’s Equation (in U.S. Customary units):

Laboratory testing of new pipe and field testing of in-service pipe have both confirmed that a Manning’s “n” value of 0.009 is conservative for solid-wall PVC sewer pipe. This value is recommended for hydraulic design. Click here for more information.