Dryer Vent Hose Replacement in Alhambra, CA

Why does the hose behind the dryer keep crushing?

Because the dryer gets pushed back against the wall. That flattens the elbow at the dryer's outlet. Foil flex crushed behind a dryer shoved against a garage wall is the most common thing we find in Alhambra. Lint settles in every ridge of that corrugation. Then dry times double. Two and three cycles to dry one load usually starts right here, not in the wall duct.

Replacement is not just a new hose. The transition piece should be listed for the use, clamped at both ends, and kept short with as few bends as possible. Tape alone fails. Duct joints taped rather than clamped let lint drop into wall cavities and garage framing. Screws that poke into the airstream grab lint and build a plug.

Clearance is the real constraint. Garage laundry corners and interior condo closets rarely leave room behind the cabinet. A recessed box or a periscope-style rigid connector solves that without kinking.

One more thing on gas. Gas dryers are the norm in this housing stock. A crushed or disconnected hose is a combustion and CO issue, not only a lint issue. If the cabinet runs hot to the touch or you smell burning, stop using it until it is looked at.