Step 3 · Mark the Cut Lines
Identify the cracked area. Using a tape measure and a permanent marker or paint pen, mark the pipe for cutting. Your first mark should be at least 3-4 inches to one side of the crack. Your second mark should be at least 3-4 inches to the other side. Ensure the total length of the section to be removed is sufficient to eliminate the entire damaged area and provides enough clean pipe on either end for the new couplings. A 12- to 24-inch section is typical. Use the marker to draw a clear line all the way around the pipe for each cut.