Question about leaking LP gas regulator, Model GR 630.

Leaking propane thru small vent hole means diaphragm has cracked/torn etc.

Yes...liquid propane into regs will damage them
But that usually happens when propane condenses back into liquid in the long cross over hose NOT from cylinder........tough to fill them high enough so liquid comes out unless hooked up when laying on it's side.

If that 30# reg is OEM......you got good service from it.

Replace with a 30# Cavagna Reg. Better quality then 'others'

Cavanga Model 914