On 21 Dec 2018 16:56:42 GMT, KenK wrote:

The graphite in a desert is not a good idea.

That's a new fact to me. Why?

"Too much graphite will cause one or more pins to over-lift. It's okay
to flush it out..."

'... probably packed in the dirt, and with the graphite, made it pack
in tight so that it wont budge."

Prison locksmiths never use graphite and there are thousand of locks.
At least the people I talked with over the years.