With a proper tension pulley working correctly you should be fine with water though right? Should have enough tension so during extreme heave rains where water will always be flung on the belt. So possibly a pulley to replace?
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)