Do not use your hose water to make beer!! A couple of guys in my homebrew club did this when they made their first batch (10 gallons) last year, and the beer had an overpowering hose flavor to it. They were pretty good sports about all the jokes at their expense, but it was a good lesson for all of us. The hose flavor did dissipate over the next 6 months or so, but man that stuff was terrible.
Oh, and the only dumb question is the one not asked!