Geothermal Engineering Information

Plastic Pipe Institute Handbook 
The Plastics Pipe Institute® Handbook of Polyethylene Pipe is a comprehensive guide to the use of smoothwall HDPE pipe and its applications. The handbook is available in PDF format at www.plasticpipe.org. For convenience, we have secured permission from PPI to activate hyperlinks to individual chapters. 

Field Handbook
This Field Handbook contains selected information that has been excerpted and summarized from several Performance Pipe publications including the Performance Pipe Engineering Manual, technical notes, various product and application bulletins, recommended heat fusion procedures, and other publications. This handbook is intended only as a quick reference aid.