https://youtu.be/YGu1ydS0-yc This video from CISPI proves best practices for installing a fitting onto a cast iron hub and spigot pipe. The Cast Iron Soil Pipe Institute (CISPI) is dedicated to aiding and improving the plumbing industry. CISPI serves plumbing contractors as a resource for cast iron product questions on installation, proper use, specifications and codes. CISPI representatives are Read more