Propane tank "clicking"

[tomcamper]

20 lb tank, rpod 177. Whenever we use propane we hear a clicking noise. Seems to come from regulator. Everything works fine. Don't know what is causing it and whether it is a problem? As always thanks for wise advice.

[MtnGuy]

I could be the check valve(s) on the pigtails. See if you can isolate it to 1 side or the other to figure out which pigtail it might be.

I had both of my pigtails replaced under warranty because the "sang" when I was using propane.

[tomcamper]

Thanks mtnguy, but I forgot to mention no pigtail, just a single tank.

[MtnGuy]

Originally Posted by tomcamper

Thanks mtnguy, but I forgot to mention no pigtail, just a single tank.

Oops. Does the regulator connect directly to the tank ??