If I end up blowing more drains at work, I may very well do
that. It's an excellent idea. Is it a bit heavy to haul up a
ladder, or do you rope it up?
I've seen a fire department use a SCBA tank with regulator
to run an air chisel, for car extrication. Much the same,
I'd guess, for you. Don't want to get suffocated by the
tool's exhaust. Inflating tires would work fine. Most
liquified gasses work fine for tires. Propane is too
flammable, but there are some non flammable halocarbons that
work nicely. In emergency, you can also invert a halocarbon
tank to feed liquid, and reseat a tire on a rim.
Christopher A. Young
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