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    Basement & FoundationAdvanced

    Basement Plumbing Rough-In

    Time
    240–360 min
    Steps
    6
    Pre-check
    4 items
    Skill
    Advanced

    Scope

    Rough in basement plumbing for a bathroom, kitchen, or utility room, laying out the drain, waste, vent, and supply lines with proper slope and venting.

    Safety

    Read before starting

    Check local codes; ensure proper slope; use appropriate materials; verify structural integrity.

    Pre-Check

    4 items · complete before you start
    0 / 28 complete

    Steps

    01

    Plan Plumbing Layout

    • Design fixture locations
    • Plan drain and vent routes
    • Check code requirements
    • Mark all locations
    ✅Continue Gate:Layout planned and approved?
    02

    Install Main Drain Line

    • Connect to existing sewer
    • Install proper slope
    • Add cleanout fittings
    • Test main line
    ✅Continue Gate:Main drain line working?
    03

    Install Vent System

    • Run vent pipes
    • Connect to main vent
    • Verify proper sizing
    • Test venting
    ✅Continue Gate:Vent system complete?
    04

    Install Branch Drains

    • Run drain lines to fixtures
    • Maintain proper slope
    • Install fittings
    • Test connections
    ✅Continue Gate:Branch drains working?
    05

    Install Water Supply

    • Run supply lines
    • Install shutoff valves
    • Test for leaks
    • Verify pressure
    ✅Continue Gate:Water supply working?
    06

    Test & Inspect

    • Test all systems
    • Check for leaks
    • Verify proper flow
    • Schedule inspection
    ✅Continue Gate:All systems working?