STEP 1 for any laundry area is to replace those fussy “wrist exerciser” gate valves with nice, lever-handled ball valves; crank the lever 90 degrees to open, 90 degrees to close.
If you’re REALLY interested in getting it “right” you can toss in a normal gate valves upstream from each ball valve, for positive shut-off. And, if you REALLY want to “do it right”, you can also install small “bleed valves” on the downstream side, plumbed to the drain, so that after the ball valves are cranked shut you can depressurize the hoses. But that’s way over-the-top for the average residential laundry facility.
If you just stick with two ball valves, you’ll be happiest.
Commute time!! YIPPEEEE!!
OK! YIPPEEE!
(Be safe!)
The device I was recommending couples two ball valves together to shut off hot and cold with one lever operation.