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Clay - The Permanent Solution

Contact NCPI


National Clay Pipe Institute is a not-for-profit trade association comprised of the manufacturers of Vitrified Clay Pipe.


The Institute promotes the use of Vitrified Clay Pipe for gravity sanitary sewers through education, research, government relations and technical support. The Institute's publications, videos and computer programs are available to engineers, agencies, contractors, students and others that are interested in building sanitary sewers having the longest possible useful life.


To request literature or training materials, click here.  To request a training session or to have a representative contact you, fill out the form below with your request.

Please Register

Most of the materials on this site are available without registering, but if you register we’ll keep you up-to-date with the latest developments in research and our newest publications. Register now to request a hydraulic calculator, download the current NCPI Engineering Manual or

request an educational seminar.

We respect the value of your time and will not over-communicate. We will never sell your contact information.


Click here for more information about our privacy policy.


For information about purchasing pipe, please contact one of our member-companies.


NCPI National Office:

N6369 US Hwy 12, Suite A

Elkhorn, WI  53121


©  2019 National Clay Pipe Institute. All rights reserved

Information provided on this website is informational only and should not be substituted for the guidance of a qualified professional.