AS 3500.1 Challenges for Hydraulic Consultants

2. BackflowPreventionfrom the Hydraulic Consultant’s PerspectivePresented byChris TrittonPresident, AHSCA, Qld

3. Generally Hydraulic Consultants use AS 3500.1 as a guide to the provision of backflow devices on water supplies. However the standard doesn’t cover all situations.

4. Identifying Areas of RiskOutside AS 3500.1 Requirements • Responding to Requirements of Local Authorities (in some cases, a conflict between Consultants and Plumbing Inspectors’ interpretation of code) • Resolving Conflictsbetween Standards and Codes AS 3500.1Challenges for Hydraulic Consultants

5. In some cases, Consultants are caught when Standards are Revised and the Implications of those Revisions are not Foreseen.

6. AS 1428.1 – 2001 Shower Head to Be Adjustable from 1000-1900mm Above Floor

7. AS 1428.1 – 2009 1428.1 Requires 1500mm Hose Creates Cross Connection between Water Closet, Wall Outlet & Hose Length Clearly A High Hazard!

8. AS 1428.1 – 2009 Challenges Increase Width of Room Ensure Shower Hose Does Not Reach Water Closet Clearly an Ideal Safety Standard!

9. Councils: Directive from Plumbing Inspectors to Install RP2D’son Hot & Cold Water to Shower • Unfortunately, these devises protect Water Supplies but not Shower Users!! AS 1428.1Subtle Changes Catch Everyone Out

10. To Ensure Planning Eliminates these Issues • Identify Areas of Risk • Work with Architects during Schematic Design Phase • Instigate discussions with Authorities when Necessary • Keep Client Informed As Consultants,

11. The Consultant is Responsible for: Identifying Risk & Either Proposing to: Eliminatethe Risk OR Incorporate Appropriate Backflow Protection (Containment, Zone or Individual Devices) Consultant’s Responsibilities

12. Produce Cost Effective Designs • Provide Efficient Systems • Provide Safe Drinking Water Supplies • Minimize Ongoing Maintenance Expenditures Client Expectations(In Regard to Water Supplies)

13. Thank You!