Replace Old Pipes
The pipes, like everything else in the homes, are subject to general wear and tear and will eventually succumb to the effects of aging. When people use the pipes, the flow of water causes friction and pressure on their inner walls, which can lead to minor leaks.
Although a plumber can usually fix minor problems, you'll eventually reach a point where re-piping your home is the most cost-effective solution. Your pipes' lifespan will vary. Copper pipes have a lifespan of about 75 years, while brass pipes can last up to a century.
Replace older pipes, especially if they are made of lead because lead in your water supply can cause serious health problems. More information about the hazards of lead piping can be found on the Environmental Protection Agency's (EPA) website.