The answer to 'supply line vs' is that supply lines and water pipes serve different purposes in a home's plumbing system. Supply lines are the flexible tubes that connect fixtures like sinks, toilets, and washing machines to the home's main water pipes. They are typically made of materials like braided stainless steel or reinforced plastic. Water pipes, on the other hand, are the rigid copper, PVC, or PEX pipes that run through the walls and floors to deliver water throughout the home.
Supply lines are generally less expensive and easier to install than water pipes, but they have a shorter lifespan of 5-10 years compared to 20-50 years for water pipes. Supply lines are also more prone to leaks and bursts, while water pipes are more durable and less likely to fail. When choosing between supply lines and water pipes, consider the specific needs of your plumbing system, the expected lifespan, and the cost of installation and maintenance.