Types of Plumbing Systems Every home has 3 basic types of plumbing systems: supply lines, fixtures, and drains. Although it may appear a random puzzle of pipes and fittings, the system and its various components work together in a logical way.
1. The Supply Line System : The first type of plumbing system is the water supply line. The supply line system is made up of pipes, fittings, and valves that carry potable (or drinking) water throughout the house. Water enters your property from a reservoir, municipal water system, or, in rural areas, from a private well.