Squealing screeching or whistling first stage piston regs usually from using urethane oring to seal the piston
or it can just happen, a new seat will shut it up but only temporarily, people tell you to lube it, only temporary if
So don't use urethane
unbalanced seconds also honk
a serviced reg that honks that didn't honk before the service, what is that????
I pull the regs apart and tune the honk out
relocate the diaphragm, twist something, tighten a nut, a plomp of lube
none of my regs honk, oh now I remember except one that lives in a box and I haven't fixed yet
So folks, please, none of my regs honk, you are perpetuating a lack of understanding
I have thirty or fifty regs of different flavours to cover the entire spectrum, none of which honk
except one that lives in a box and I haven't fixed yet
Including a couple of these
what do you think stroker