The New Hotness

After a bit more than half a century, the rubber washer in the cold water shutoff valve for the kitchen sink had fossilized:

The hot water washer was in much worse condition:

The shutoff valve for the hose bib in the front of the house, mounted knob-downward, has been dripping quietly for many many years before I replaced it:

I’d turned the valve off to no avail, so this was no surprise:

While it is theoretically possible to replace those washers, even the professionals know better than to disturb a sleeping valve:

The tandem valve was likely installed half a decade ago, along with the dishwasher it services. Perhaps the washer inside remains soft.