For Autodesk Revit · Revit 2025

Revit Plumbing Educational Tools forHydraulic Engineers, Drafters and BIM Managers

Reference implementations demonstrating AS3500-aligned connector quality control and network flow analysis embedded directly within the Revit BIM environment.

Buy the Package — $249 AUDDownload Free eBook
John R Smith, retired hydraulic engineer

Built by an Engineer, Not a Software Company

John

Senior Hydraulic Engineer · Australia

After decades designing hydraulic plumbing systems on major projects, I started down a different path in 2018. Every year, firms spend enormous amounts of time manually counting Drainage Fixture Units, Water Supply Loading Units, and Stormwater flow rates that end up on a spreadsheet, one static result at a time.

When I discovered Revit's Plumbing Connectors could help with this, I also found the catch: Revit doesn't stop you from configuring a connector wrong, and it doesn't do the flow accumulation and sizing math for you either. WCT-PlumbCheck and WCT-PlumbFlow are the Revit add-ins I've built to close that gap — along with reference implementations to help you learn the concepts and get more out of your Revit plumbing models, built against AS3500 the way a practising hydraulic engineer would recognise.

I'm sharing what I've learned along the way, to help other engineers, drafters and BIM specialists overcome many of these problems and steer clear of the frustrations that can inevitably occur.

Two Tools. One Standard.

Both tools operate within the WCT-PlumbCheck and WCT-PlumbFlow ribbon tabs added to your Revit interface on installation.

WCT-PlumbCheck

Connector quality control for Revit plumbing families. Validates system type, flow direction, loading units, diameter, and category against AS3500 requirements. Covers sanitary DWV, stormwater, and water supply — hot and cold.

  • ✓ Informational assistance for all aspects of the plumbing connectors supplied with the sample model with just one click
  • ✓ Educational explanations — not just error codes
  • ✓ Pipe Fittings, Pipe Accessories, Plumbing Fixtures, Plumbing Equipment
  • ✓ AS3500.1 Loading Unit verification per fixture type

WCT-PlumbFlow

Stormwater and water supply network traversal. Accumulates flow from rain water outlets and fixture loading units through the Revit MEP network, labels junction nodes with flow and preliminary AS3500.3 pipe sizing suggestions for final engineering assessment.

  • ✓ Stormwater flow accumulation (L/s) per AS3500.3
  • ✓ Manning's pipe sizing at 75% full-bore capacity
  • ✓ Water supply PSD via AS3500.1 two-tier framework
  • ✓ Sub-meter hydraulic ranking (most disadvantaged fixture)
  • ✓ Open source — full PlumbFlow source code included

Includes a Correctly Configured Sample Model

A complete Revit project file (.rvt) with correctly configured plumbing families across all disciplines — sanitary DWV, stormwater, hot and cold water supply.

Free Download

Mastering Revit Plumbing
Connectors — AU Edition

46 pages covering the theory behind correct Revit plumbing connector configuration in relation to AS3500.1 water supply flow analysis, AS3500.2 Drainage Fixture Unit accumulation, AS3500.3 stormwater traversal for size evaluation against Manning's Formula in Litres per second and the principles that can assist in keeping your BIM-based hydraulic analysis up to date within an ever evolving modelling environment. Written for practising hydraulic engineers, experienced drafters, BIM managers and those with an interest in software development.

In many cases, the detail covered here can't be found in Revit's own help documentation or general online resources — it comes from hands-on experience gained by trial and error over many years — so that you can move forward with your own connector configurations with confidence.
  • ✓ Chapter 1 — Sanitary DWV fittings and FU accumulation
  • ✓ Chapter 2 — Stormwater network traversal and Manning's formula
  • ✓ Chapter 3 — AS3500.1 water supply sizing — two-tier framework
  • ✓ Appendices — derivation of all sizing constants
Download Free eBook (PDF)
Mastering Revit Plumbing Connectors - AU Edition eBook cover

One Package. Everything Included.

A single one-off purchase. No subscription. Compatible with Revit 2025.

$249 AUD

One-off purchase · Instant download

  • ✓ WCT-PlumbCheck Revit add-in (DLL + installer)
  • ✓ WCT-PlumbFlow Revit add-in (DLL + installer)
  • ✓ Correctly configured sample Revit model (.rvt)
  • ✓ "Mastering Revit Plumbing Connectors - AU Edition" eBook (PDF, 46 pages)
  • ✓ PlumbFlow full open-source code (GitHub)
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Educational Purpose & Disclaimer

WCT-PlumbCheck and WCT-PlumbFlow are reference implementations demonstrating how hydraulic engineering workflows can be embedded within a Revit BIM environment using AS3500 as the governing standard.

These tools are provided for educational and demonstrative purposes only, and therefore do not constitute a design deliverable and must not be relied upon as a substitute for the independent judgement of a suitably qualified hydraulic engineer.

This software is provided without warranty of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or fitness for use on any specific project. Use of this software does not confer any right to apply its outputs as a formal engineering assessment.