Step 6 · Assemble the Joint
Insert the flux-coated pipe end into the flux-coated fitting. Push it in fully until it seats firmly against the fitting's stop. Give the pipe a slight twist to ensure the flux is evenly distributed. Use a clean rag to wipe away any excess flux that squeezes out of the joint. Leaving excess flux on the outside can cause corrosion and an unsightly green patina over time.