The only time mine ever hummed (very tunelessly I might add) was when my oxygen was running low. I've got QD's on all the torches and once the oxy pressure started dropping at the end of a tank, the humming started - which fits in with "fiddling with pressures" I guess.
__________________
To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
Chaotic Glass: Safety for the glassworker, and random thoughts and opinions on the state of the glassworking world To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
|