I'm building speakers and need to know how to glue veneer on to plywood and other woods
This Site Might Help You. RE: How long are the store bought fire extinguishers good for? Most of them come with some type of guage on them but are they accurate? Nothing under pressure stays that way indefinitely. Any good answers out there?
Go to an auto parts store and get a can of spray de-icer. Squirt that in the lock, it will melt the ice and free up the mechanism.
H Feel free to contact me direct (profile email) if you have any more questions. Good Luck, be safe.
The guage is accurate enough to indicate if the tank is pressurized, and should drop as leakage slowly bleeds off the pressure. (interesting that you know that valves and sealing techniques aren't perfect, most people are unaware of that!) Also, be sure and tap on the pressure guage when you look at it, just in case it's a little sticky. Hopefully it isn't just stuck - that's a failure mode too, though in most cases unlikely. If you're really concerned about fire, it's probably worth having a backup extinguisher - I have one in the kitchen and one in the garage nearby.
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