Renden, this is what you have ahead of you:
You need to pull all knobs off, screws holding the different hose fittings so panel can be removed than replace the hose fitting.
Cleaning the valve behind the washer screen should help cut down drip and I use a quick connect hose fitting for my hose which will make everything stiff when tighten to the washer, maybe try an extra washer if you can get quick connect to start on fitting threads.
Just cleaning may do what you need even a little drip in water bay is not going to hurt anything.
Dave has all this brake down written up in Quick Tips 2nd section. I think he was replacing his water pump.