Said It Here

Loud whistling sound from newly installed valve

A loud whistling noise happens when running water through a newly installed spigot and ball valve, and adjusting the soldered supports will not stop it. If the sound comes from a gas valve, turning it off and back on can temporarily halt the noise. Ultimately, the whistling valve will need to be replaced.

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
    opening and closing the valve repeatedly to check for a bad or partially open valve
  2. 2
    checking for contact between the pipe and supports to see if it amplifies the sound
  3. 3
    tightening the packing nut on the valve
  4. 4
    Turning the gas valve off and back on again temporarily stops the noise.

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/Plumbing1 person · October 2026

“There is a loud whistling sound when running water through the newly installed spigot and ball valve.”source ↗

Double_Zucchini4810 · r/Plumbing · 24 upvotes

“I’ve tried messing with it at the support but it doesn’t make a difference. It’s soldered together there”source ↗

Double_Zucchini4810 · r/Plumbing · 2 upvotes
r/hvacadvice1 person · October 2026

“Coming from gas valve. I turned the gas valve to off and back to on now noise stopped. I suppose I need to have it replaced.”source ↗

Gnome-saying · r/hvacadvice · 2 upvotes

Where this came up

People with this problem also raised