§ Chapter 29 IRC 2024
Water Supply and Distribution
8 entries from Chapter 29 of IRC 2024, organized by section number. Each entry covers what the code requires, why it exists, what inspectors look for, and common mistakes.
§ 01 Sections
All 8 entries.
Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.
Section
Title
Question
P2902
IRC 2024 Backflow Prevention: Cross-Connection Control for Residential Plumbing
P2902
Where is backflow prevention required in a residential plumbing system under IRC 2024?
Where is backflow prevention required in a residential plumbing system under IRC 2024?
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P2903.1
IRC 2024 Water Pipe Sizing: Minimum Diameter for Supply Lines
P2903.1
What is the minimum pipe size for water supply lines under IRC 2024?
What is the minimum pipe size for water supply lines under IRC 2024?
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P2903.3
IRC 2024 Hot Water Pipe Insulation: Energy Code Requirements for Supply Lines
P2903.3
Does IRC 2024 require hot water pipes to be insulated?
Does IRC 2024 require hot water pipes to be insulated?
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P2903.3.1
IRC 2024 Pressure Reducing Valve: Required When Street Pressure Exceeds 80 PSI
P2903.3.1
When is a pressure reducing valve required under IRC 2024?
When is a pressure reducing valve required under IRC 2024?
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P2903.4
IRC 2024 Expansion Tanks: Required When Water Heater Is on a Closed System
P2903.4
When is a thermal expansion tank required on a water heater under IRC 2024?
When is a thermal expansion tank required on a water heater under IRC 2024?
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P2903.5
IRC 2024 Water Hammer Arresters: Where They Are Required
P2903.5
Where are water hammer arresters required under IRC 2024?
Where are water hammer arresters required under IRC 2024?
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P2903.9.1
IRC 2024 Shut-Off Valves: Where Individual Fixture Valves Are Required
P2903.9.1
Where are shut-off valves required at individual fixtures under IRC 2024?
Where are shut-off valves required at individual fixtures under IRC 2024?
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P2904
IRC 2024 PEX Pipe: Installation Rules, Bending Radius, and Support Requirements
P2904
What are the IRC 2024 installation requirements for PEX pipe in residential plumbing?
What are the IRC 2024 installation requirements for PEX pipe in residential plumbing?
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§ 02 Chapter navigation