Said It Here

Flexible accordion tub drain buried in concrete slab

Flexible accordion-style tub drains are sometimes improperly installed and buried under concrete ground-floor slabs, leaving homeowners with no way to fix clogs or drainage issues without extensive demolition. Because digging up the concrete is often the only available solution, people are forced into destructive remodeling work just to service a faulty drain line.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Chipping up the concrete to remove the flexible drain and replacing it with standard PVC or a freestanding tub drain

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/Plumbing2 people · September 2026

So, my neighbor called me over because his bathtub wouldn’t drain.source ↗

Digging it up and out of the concrete is my only idea. This tub is located on ground floor, so yes it’s all concrete.source ↗

TheyreSnaps · r/Plumbing · 5 upvotes

My tub came with one of those. Should be criminal.source ↗

soyeahiknow · r/Plumbing · 3 upvotes

Where this came up

People with this problem also raised