maintenance-guy
You can still get these piercing valves, ask at your hard ware store for a kit to install an ice maker fridge.
But piercing valves leak, and the tiny hole they make won’t pass much water, it will take a long, long time to fill a washer.
I suspect that if you unscrew the aerator form the faucet, you’ll find a set of threads where you can attach a hose adaptor, also available from the hardware store.
