The tempering valve is a heavy, palm-sized knot of brass, cold to the touch and deceptively simple in its geometry. It sits in a plastic bin toward the back of a technician’s van, tucked between a roll of Teflon tape and a box of galvanized fittings that haven’t seen the sun in months.
The “Dormant” Inventory
To the casual observer, or perhaps to the accountant peering through the narrow lens of a quarterly audit, this valve is a liability; it represents capital tied up in the dark, a dormant piece of inventory that contributes nothing to the immediate bottom line; it is a ghost of a repair that might never happen.
Let us consider the weight of things we carry just in case.
The Economy of Space
In my world, the world of the prison library, I recently found myself testing every single pen in the drawer-not because I had nothing better to do, but because the failure of a three-cent plastic tool can be the catalyst for a very long, very loud afternoon. I used to believe that a streamlined inventory was the hallmark of a sophisticated system.
I thought that pruning the “redundant” books or the extra