thats possible, but not so likely, unless you have a leak in the seal in your slave cylinder or fluid line,but if you had a leak in the line you would have noticed it before hand, unless the water was the cause of the leak, i would definitely try and bleed the clutch, if that doesnt work, the water prolly got into the housing of the tranny and possibly washed away alot of the lubricant on the throwout shaft and now the throwout bearing is not lubricated and creating friction and resistance as well as the throwout fork pivot point and its prolly just getting hot and bothered. or maybe it got in beetween the clutch and flywheel and left some residue from that dirty ass water.drop the tranny, clean it, lube it, bleed the clutch. thats your part of your troubleshootin. hopefully it didnt get in the internals of the tranny.