Flex kink reduces airflow
Straighten and support the flex before TAB turns it into an airflow complaint. A kink or crushed inner liner shrinks the air path, so the diffuser may look connected but still starves for air.
Watch out Do not hide kinked, crushed, sagging, or extra-long flex above ceiling because it “looks connected.” Check Follow the flex from collar to boot/diffuser and find the kink or flattened spot. Check whether the inner liner is collapsed, twisted, stretched too tight, or sagging. Shorten the run or reroute it if the flex is acting like a long sloppy hose. Add approved support/cradle without cinching the liner. Ask for hard duct or a route change if the flex cannot hold a smooth bend. Steps Follow the flex from collar to boot/diffuser and find the kink or flattened spot. Check whether the inner liner is collapsed, twisted, stretched too tight, or sagging. Shorten the run or reroute it if the flex is acting like a long sloppy hose. Add approved support/cradle without cinching the liner. Ask for hard duct or a route change if the flex cannot hold a smooth bend. Say this to your foreman This flex is kinked at [location] and may be choking the diffuser. Do you want me to re-support/shorten it, or change the route/hard duct it?
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