- Jul 10, 2019
Well, the canister does weigh, when filled, 17-20 lbs@pane, I'm not sure of anything! I took notes when I called the gas supplier a couple months ago and my notes say he told me the tank was 20 lb. So I guess I'll just have to wait and see. But if this stupid COPD progresses any worse, I may be out of luck with N2. BTW, I am such a total fan of black cats (had to euthanize my elderly black cat several years ago), so every time I see your avatar, I get all purry.
I'm hearing that I can buy ALL that I need from Cyberweld here in the USA and do not have to get the hose, regulator from Max Dog... Can you confirm? Any intel?Cylinders are hydrostatically tested on a regular (and regulated) schedule, and cannot be used/sold if they are not "in hydro," so regardless of how shabby it looks, it'll be sound. (A couple of my various cylinders look a lot worse than the one in that photo.)
As @color_me_gone says, the valve may be a different matter, but getting a leaker is pretty rare in my experience. In fact, I don't think I've had that trouble. Gas companies don't like leakers any more than the customer does, so they tend to take care of their valves.
I've heard a good way to test for slow leaks, when there's no regulator attached, is to stretch a balloon over the valve, seize it in place with a bit of twine, and see if it inflates over time. If there is a leak in the valve, you can often make an "end run" around it by attaching the regulator and making sure the regulator's flow valve is closed: any gas that leaks from the cylinder's valve will be stopped by the regulator's valve. This isn't a good long-term solution, as regulator valves are much more prone to slow leaks than cylinder valves (they're mechanically more complex), but it can sometimes do the job for a while.
To test for leaks around the regulator, where it attaches to the cylinder, squirt some soapy water around the connection and see if it bubbles.