Said It Here

How to check a DIY plumbing layout before gluing

Verifying if subfloor pipe routing and vent configurations are correct is a major hurdle for DIYers. This uncertainty leaves you guessing if the layout has incorrect details, which stops you from confidently gluing the pipes together.

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
    Asking for feedback online in forums like Reddit
  2. 2
    Consulting local plumbing code books independently
  3. 3
    Posting photos of the dry fit online to ask for feedback
  4. 4
    Adjusting and twisting pipes to meet clearance requirements before gluing

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 – October 2026

“before I glue, did I do it right?”source ↗

JoshDunkley · r/Plumbing · 13 upvotes

“How does this plan look? Anything that’s incorrect?”source ↗

AverageJ0e91 · r/Plumbing

Where this came up

People with this problem also raised