Said It Here

Why won't a new bathtub spout fit my existing pipe?

Different replacement tub spouts use incompatible connection methods, such as slip-on versus threaded connections or mismatched pipe stub lengths, which leaves gaps against the wall. Because of these variations, a new spout often cannot be installed without buying the exact matching model or modifying the plumbing configuration.

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
    Buying an exact replacement spout model
  2. 2
    Soldering a threaded male adapter onto the copper pipe stub
  3. 3
    Using a universal tub spout adapter or hiring a professional plumber
  4. 4
    Using a Crescent wrench to unscrew the broken fitting and buying a new replacement part.

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

“Would someone be able to tell me if this is something I can fix myself? It fell off.”source ↗

North-321 · r/Plumbing · 9 upvotes

“The diverter pull broke on my tub spout (top spout/brushed nickel). I took it off and attempted to put the bottom spout on, but it isn’t fitting. It doesn’t go back to the wall.”source ↗

“I’m thinking I need to go get the exact replacement faucet or is there a way to make this one work?”source ↗

semiusedkindalife · r/Plumbing · 1 upvotes

Where this came up

People with this problem also raised