Fast review mode: answers are shown by default so you can skim quickly. Hide them if you want to self-test.
Plumbing systems deliver clean water (supply) and remove waste, operating through pipes, valves, and drains. Water heaters, the core of hot water systems, use electric elements or gas burners to heat water, with storage tanks (requiring yearly flushing) or tankless units commonly used. Key maintenance includes testing the temperature-pressure relief valve and replacing the sacrificial anode rod to prevent corrosion.
Plumbing System Basics Supply System: Pipes, usually copper or plastic (PEX/PVC), under pressure bring fresh water to fixtures. Drain-Waste-Vent (DWV) System: Uses gravity to remove wastewater, with vents allowing air in to prevent vacuums and traps blocking sewer gas. Main Shut-off Valve: Crucial to know its location to stop water flow in an emergency.
Water Heater Basics Storage Tank Heaters: Store and heat water, with a dip tube directing cold water to the bottom and a hot-water line taking water from the top. Tankless Heaters: Heat water instantly upon demand, offering higher energy efficiency.
Components: Anode Rod: A metal rod (magnesium/aluminum) that protects the tank from rusting by corroding first. Temperature Pressure Relief (TPR) Valve: Safety valve that releases water if pressure or temperature becomes too high. Drain Valve: Located at the bottom to flush out sediment.
Maintenance Tips Flush the Tank: Yearly cleaning to remove sediment buildup that acts as insulation, reducing efficiency and burning out elements. Check the Anode Rod: Inspect every 1–3 years, especially with soft water, to ensure the tank is protected from leaks. Check for Leaks: Periodically inspect connections, pipes, and the tank for signs of rust or water.
Join 4M+ learners. Unlock unlimited quizzes, wrong-answer tracking, flashcards + reminders, study guides, and 1-on-1 challenges.