Hydrostatic Pressure Testing
Industry-leading water-based pressure testing for pipes, plumbing systems, and underground infrastructure across British Columbia.
What is Hydrostatic Pressure Testing?
Hydrostatic pressure testing is a water-based non-destructive testing method used to verify the integrity of piping systems, plumbing installations, and underground infrastructure. This proven technique involves filling the system with water and pressurizing it to a specified test pressure to detect leaks, weaknesses, and structural deficiencies.
At PressureTesting.ca, we utilize precision digital gauges and advanced monitoring equipment to conduct hydrostatic tests that meet or exceed industry standards and building code requirements. Our testing methodology provides accurate, reliable results that protect your investment and ensure system safety.
With over 25 years of experience conducting hydrostatic pressure tests across Metro Vancouver and British Columbia, we have the expertise to handle residential, commercial, industrial, and municipal applications of any size or complexity.
Hydrostatic Testing Applications
Comprehensive water-based testing for diverse systems
Plumbing Systems
- New construction plumbing line testing
- Domestic water supply systems
- Hot and cold water distribution
- Multi-family plumbing risers
Fire Protection Systems
- Fire sprinkler system testing
- Standpipe and hose systems
- Fire main pressure verification
- Fire suppression system certification
Underground Infrastructure
- Underground pipe testing before backfill
- Concrete slab leak detection
- Water main pressure testing
- Municipal water line verification
HVAC & Mechanical
- Hydronic heating system testing
- Radiant floor heating loops
- Chilled water piping systems
- Process piping verification
Our Hydrostatic Testing Process
System Preparation
We isolate the test section, ensuring all fixtures and equipment are properly capped or valved off. The system is visually inspected for obvious defects before testing begins.
Filling & Venting
The system is slowly filled with clean water while carefully venting all air pockets. Complete air removal is essential for accurate pressure readings and proper test results.
Pressurization
Using calibrated test pumps, we gradually increase pressure to the required test level (typically 1.5 times the working pressure or as specified by code). Digital gauges monitor pressure precisely.
Hold & Monitor
The test pressure is maintained for the required duration (typically 2-4 hours). We continuously monitor for pressure drops that would indicate leaks or system weaknesses.
Documentation & Reporting
We provide detailed test reports including pressure readings, test duration, pass/fail status, and recommendations. Reports include photos and are suitable for inspectors, engineers, and insurance.
Benefits of Hydrostatic Testing
Accurate Leak Detection
Water-based testing provides precise leak location and quantification. Even small leaks become visible through pressure drop analysis.
Code Compliance
Meets BC Building Code and plumbing code requirements. Accepted by all inspectors and municipalities throughout British Columbia.
Non-Destructive
Tests system integrity without causing damage. Water can be drained and the system put into service immediately after successful testing.
Comprehensive Verification
Tests the entire system including joints, fittings, valves, and pipe material. Identifies weaknesses before they become costly failures.
Technical Standards & Requirements
Test Pressure Requirements
Hydrostatic test pressure is typically 1.5 times the working pressure of the system, but never less than 100 PSI for plumbing systems. Specific requirements vary by application:
- Domestic Plumbing: 100 PSI minimum for 2 hours
- Fire Sprinkler Systems: 200 PSI or 50 PSI above working pressure for 2 hours
- Municipal Water Mains: 150 PSI or 1.5x working pressure for 4 hours
- Hydronic Heating: 100 PSI or 1.5x working pressure for 2 hours
Pass/Fail Criteria
A system passes hydrostatic testing when:
- No visible leaks are observed at any joints, fittings, or pipe sections
- Pressure remains constant throughout the test duration (allowable drop: 5 PSI max)
- No structural deformation or damage occurs during pressurization
- Test is witnessed and documented by qualified personnel
When is Hydrostatic Testing Required?
- New plumbing installations before concealment (pre-drywall)
- Fire protection system commissioning and periodic testing
- Underground piping before backfill and slab pour
- Pipe repair verification after leak remediation
- Insurance and warranty compliance requirements
- Municipal and engineering specifications
Professional Hydrostatic Testing Services
Ensure your piping systems meet code requirements and perform reliably. Contact PressureTesting.ca today for accurate, documented hydrostatic pressure testing.