This document outlines best practices for hydrostatic testing plumbing systems. It describes a 10 step process for conducting hydrostatic tests, which involves pressurizing the system to 100 psi using a hydrostatic pump and garden hose, checking for leaks over 2 hours, and documenting the results. The goals of hydrostatic testing are to check for any leaks in the plumbing unit and ensure it meets pressure requirements before final approval. Materials used include a hydrostatic pump, and references may include photos, drawings, tables, or engineering details.

1. BEST PRACTICE – HYDROSTATIC TESTING
Created: October 6th, 2011
Reference #: BP-PL-GLI001
Rev.
Alta-Fab Structures Ltd. Best Practices Manual Page 1 of 3
APPROVED BY: DATE:
(Division Leader Signature)
APPROVED BY: DATE:
(QA Manager Signature)
FINAL APPROVAL
FOR ISSUE TO
PLANT:
DATE:
(VP-Standards & Best Practices Signature)
PROCESS:
Hydrostatic Testing
DEPARTMENT:
Plumbing
APPLICATION(S):
Frameless & Skidded
Dorm, Office, WS, EE PRODUCTION STAGE:
???
REASONING/HISTORY:
We Run the Hydrostatic Test to make sure there are no leaks in the unit
PROCEDURE: (Step 1, Step 2, Step 3….etc.)
1
Pressure up system with system pump. Open all taps to
bleed out the air.
2
Turn taps and isolation valves off at each fixture. Isolate
Expansion Tank and System Pump
3 Grab the hydrostatic pump and connect it. Attach a garden
hose to the hydrostatic pump.
4 Plumber will start up the pump and run the water
5 Turn on the air chuck valve and proceed to pump up the
system to 100 psi
6
Once the system is pumped up to 100 psi, Plumber will go
and check for leaks.
7 The plumber will go and tell one of the QC inspectors that
testing is taking place.
8 The QC Inspector will go and check the start of the test
and record the time.
9 After 2 Hours the QC Inspector checks the Pump and if the
Pressure has not dropped he will find the QC Binder and

2. BEST PRACTICE – HYDROSTATIC TESTING
Created: October 6th, 2011
Reference #: BP-PL-GLI001
Rev.
Alta-Fab Structures Ltd. Best Practices Manual Page 2 of 3
fill out the Hydrostatic Testing Portion in the Plumbing
section.
 If the Pressure has dropped or failed the QC
Inspector will find the Plumber and let him know
about the Pressure.
 The Plumber will then re-check for Leaks
 If there are Leaks the Plumber will Fix them up and
re-start the Hydrostatic Test.
10 Once the QC Inspector is finished filling out the paper work
he will tell the Plumber that it is finished.
MATERIALS:
Insert in bullet form what materials are used in this Best Practice.
 Hydrostatic Pump
REFERENCE(S): Photo, Drawing, Table, Engineering Details, Code
Insert in bullet form what reference material you will be using below for the Best Practice.

Reviewed by:_________________________
(Please Print)
Position: _________________________
DEPARTMENT EMPLOYEE SIGN-OFF
Print Name Signature Date Reviewed

3. BEST PRACTICE – HYDROSTATIC TESTING
Created: October 6th, 2011
Reference #: BP-PL-GLI001
Rev.
Alta-Fab Structures Ltd. Best Practices Manual Page 3 of 3