Pressure and leakage testing

A controlled test of whether a section holds what is put into it.

What this page cannot establish

Pressure or leakage testing cannot establish the condition of sections outside the tested length
Pressure or leakage testing cannot establish the cause of any result
Pressure or leakage testing cannot establish compliance, unless the applicable authority says so

What it is for

To assess whether a defined, isolated section retains water or air under a controlled procedure.

When a professional may raise it

These are circumstances, not rules. No method is appropriate everywhere, and a professional declining to use one is not necessarily cutting a corner.

where a local process or an inspection requires it
on a newly installed or lined section, where a procedure applies
not applicable to every line or every situation

What to ask for afterwards

A method performed without a record produces very little you can carry into the next conversation.

the written procedure used and the section it covered
the recorded result

Practical constraints

requires the section to be isolated
not appropriate for every configuration
performed only by qualified professionals

Questions worth asking

Which section was tested, and how was it isolated?
What procedure was followed?
Is this test required here, or optional?

What would change the answer

the written procedure used and the section it covered
the recorded result

What to do next

Whether a test is required is a local question, and the answer determines whether it belongs in the price.

Ask whether the test is required or optional here

If your situation is different

It appears in a proposal you are comparing: Compare proposals by stated scope

If you want a second read

If you have footage or a written report and cannot tell what it establishes, you can send what you hold and have a person read it. They will say what the inspection covers, what it does not reach, and what to ask for next. Nothing here judges the inspector.

Have someone read your inspection evidence

Permits and inspections
Testing requirements usually arrive attached to a permit process.