Final answer:
Cracked or leaking pipes should be removed or repaired by a professional using proper methods like replacement or reinstallation. Using a plumber's supply of copper to replace lead pipes could solve lead poisoning risks and ensure safety and compliance with standards.
Step-by-step explanation:
When addressing a situation in which a pipe or fitting is cracked or leaking, it must either be removed, or the leak must be repaired. The professional and correct way to handle such repairs is beyond simple fixes like caulking, patch welding, or covering imperfections with solvent cement. More comprehensive solutions might involve complete replacement or professional repair techniques, depending on the severity and location of the damage.
For instance, in the scenario where lead pipes are leading into a house and potentially posing a risk for lead poisoning, a responsible plumber may suggest replacing the lead pipes with a safer material, like copper pipes. Despite the quoted low price for using a plumber's existing supply of copper, it's crucial to ensure that all repairs and replacements comply with plumbing standards and safety regulations.
In the context of the question, 'reinstallation' might refer to the replacement of the damaged sections of the pipe with new, undamaged piping, which is typically the most reliable solution. Ultimately, the method of repair or replacement would be decided by a plumbing professional based on the type of material, the extent of damage, and the potential risks involved.