Is there anything I can do w/o a plumber? I have the water turned off to the whole house and don't really want to leave it off until tomorrow.
Unless you can access the rear and plug off the supply pipe(s), you are gonna be without water until you get a plumber! Can't say for sure, but you are probably gonna lose some wall to gain access, so you could go ahead and open up the wall to get to the pipes. You could cut them off and solder caps, or even crimp the ends and solder if you are capable of that.
