Spiral duct is out of round and the coupling will not seat
Do not crush the spiral to make it fit. Check roundness, damage, coupling depth, alignment, and whether the piece can be re-rounded or needs replacement.
Do not smash the pipe oval, beat the coupling on, or seal a rocked connection.
Check
Measure/check the round shape at several points.
Inspect for dents from staging/shipping.
Confirm coupling size and insertion depth.
Try only approved re-rounding/edge correction if your foreman allows.
Ask whether to re-round, replace, or use a different fitting.
Steps
Measure/check the round shape at several points.
Inspect for dents from staging/shipping.
Confirm coupling size and insertion depth.
Try only approved re-rounding/edge correction if your foreman allows.
Ask whether to re-round, replace, or use a different fitting.
Say this to your foreman
The spiral at [location] is out of round and the coupling will not seat. Do you want me to try re-rounding it, adjust support/alignment, or pull a new piece?