New Zealand · AI-powered · Free to try
Free Plumbing & Hydraulics ITP Generator
Generate a complete Inspection & Test Plan for plumbing and hydraulics in seconds. Covers pipe installation, pressure testing, backflow prevention, hot water commissioning, and drainage — with hold points for pressure test sign-off.
- Hydraulics-specific hold points and witness points
- Aligned with AS/NZS standards and the NZ Building Code
- Sign up free to download your PDF
Trade
Scope
Brand
Project
Finish
What trade is this ITP for?
We'll tailor the inspection items, hold points and standards to your trade.
Applicable Standards (AS/NZS & NZ Building Code)
- AS/NZS 3500 — Plumbing and Drainage
- AS 4032 — Thermostatic Mixing Valves
FAQ
- What pressure testing is required in a plumbing ITP?
- AS/NZS 3500 specifies water supply testing at 1.5 times the working pressure (minimum 500 kPa) for a minimum of 30 minutes with no visible drop. Drainage testing requirements vary but typically include a standing water test or air test. The ITP should record the test pressure, duration, start and end gauge readings, and the inspector's sign-off.
- Do I need separate ITPs for above-ground and below-ground plumbing?
- Not necessarily, but many contractors separate them because the inspection requirements differ significantly. Below-ground work has hold points at trench bedding, pipe laying, and backfill. Above-ground work has hold points at pressure testing and commissioning. A combined ITP works for smaller projects.
- What about gas installation in the plumbing ITP?
- Gas installation should either be a separate section in the plumbing ITP or a standalone document. It has specific hold points at pipe installation inspection, pressure testing (using nitrogen or air — never gas), regulator installation, and final commissioning with gas. Gas work is subject to additional regulations beyond AS/NZS 3500.