Static field route #122

What do I do when not checking all corners after duct is pressurized?

Rectangular Duct Assembly: TDC / Ductmate / FlangesPolished core starter — connector/detail check

During a pressure/leakage test, find corner leaks methodically instead of guessing. Mark each confirmed leak while the system is pressurized, then repair after the test is safely stopped/depressurized as directed.

Open in Field Rescue Open category

Field checklist

Work joint-by-joint and corner-by-corner, not randomly.
Listen/feel for leaks and use smoke/soap/approved leak method only if allowed on the job.
Mark each confirmed leak with tape or marker and note room/grid/system.
Separate TDC corner, gasket, flange gap, and duct seam leaks.
Depressurize/hold the system before repair if required by the test procedure.

Ask foreman

I’m finding multiple possible TDC corner leaks during the test. Do you want me to mark confirmed leaks first, then depressurize and repair in order?

Do not

Do not chase leaks randomly, repair while the test is running without direction, or call every air movement a confirmed leak.

Why it matters

A systematic leak walk gives the foreman/TAB/PM a real repair list instead of a pile of guesses.

Search words: tdc ductmate flange QA TDC corner leak pressure test leakage test find leak smoke mark leak hissing