0

In my guest bathroom, there is a single handle shower faucet, likely an early Delta or American Standard scald-free ('monitor') that occasionally screams/whistles when being operated.

It doesn't leak, and I believe the scald-proof temperature control works adequately. Anyone have any experience with this issue? Do I need to replace it, or try a seal/spring kit?

| improve this question | |
  • 80s music is terrible. – DMoore Oct 22 '15 at 17:57
1

High velocity flow through a restricted opening connected to a resonance chamber causes whistling. Things you might try other than modifying the valve:

  1. Install a flow restrictor at the shower head. It only needs to restrict the water a little to change the dynamics of the flow through the valve. If you start with one that restricts the flow so much it is annoying, you can usually enlarge the opening in it with a drill. Of course, if you enlarge the restriction too much then you will be back where you started.

  2. Check system water pressure. If it is above 60psi, then consider installing a pressure reducing valve on the system.

| improve this answer | |
  • Thanks-- I might try a different shower head and/or soaking the existing shower head in some descaling acid.. It's possibly that the once-fine shower head is now restricted, causing the resonance. – Scott DV Oct 26 '15 at 19:51

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.