Said It Here

Water company says we have a leak but we can't find it

Utility companies often report massive hidden leaks that show zero visible signs inside or outside the house and make no rushing water sounds. First-time homeowners dealing with this sudden warning are left completely lost on where to look or what to do next.

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
    Checking the water meter to see if it shows flow
  2. 2
    Adding food coloring to toilet tanks to check for silent flapper leaks

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

Our water company called us and told us we have a 31gallon an hour leak.source ↗

We have looked everywhere. Zero water in the house or yard. No rushing water sounds.source ↗

We are first time home owners and have only been here 4 months so totally lost on what to do.source ↗

EmmieL0u · r/Plumbing · 19 upvotes

there is a leak in my living room closet in my apartment, its coming from some kind of box on the left side and now part of the wall is bubbling, any idea on what could of caused this ? (water is clear and odorless)source ↗

Mountain_Willow_5069 · r/Plumbing · 1 upvotes

Where this came up

People with this problem also raised