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Fixtures The places where we use water are called fixtures. The toilet is a fixture. The sink is a fixture. The bathtub and shower are fixtures. Each fixture needs a supply pipe to bring clean water in. And each fixture needs a drain pipe to take wastewater out. Toilets are special. They have a cistern. The cistern holds water. When you flush, the water from the cistern rushes into the toilet bowl and carries the waste away. CONVERSATION 3: Installing a Toilet A plumber and an assistant ar