Use this underground plumbing final stage checklist to verify site readiness and compliance before backfill or handover. Review pit levels, depths, openings, trench grates, orifice sizes, slopes, iron steps, overflow, and internal pipe sizing. Confirm rendering and storm water tap-ins, then arrange council or engineer inspections as required. Check stack locations, sewage ORG, IS, and vent installation. Validate water tank connections, charge pipe routing, and overflow locations. Record photos, notes, and approvals for a complete audit trail.
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