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Plumbing
Rough-in, DWV & fixtures
Rough-in coordination, pressure testing and fixture verification.
2 lessons published1 QC lessons1 safety lessons
Lessons in Plumbing
quality control 8 minFREE
Plumbing Pressure Test — DWV & Supply
Perform code-required pressure tests before drywall closes the walls.
v1.1 · reviewed 2026-04-18 · by James O'Brien
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safety 5 minFREE
Ladder Safety — Pre-Use Inspection
Inspect every ladder before use and follow three-points-of-contact.
v1.2 · reviewed 2026-06-10 · by Frank Marlow
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