Reggie,
I have had rodents that chewed through water bottles, too. It IS frustrating ... seems mine always did it at 10:00 pm after all the stores closed.
For a temporary fix, should the situation ever arise again, YES, use duct tape!
For a permanent fix, there are several, most already mentioned, that I have used in the past with good results: buy a glass or metal water bottle instead of plastic;buy a metal guard sold at pet stores or just get a thin piece of metal, drill holes in the corners and attach it to the bars of the cage between the bottle and cage, or buy the attachements that can be screwed into normal plastic bottles.
"We give dogs the time we can spare, the space we can spare and the love we can spare. And in return, dogs give us their all. It's the best deal man has ever made" - M. Facklam
"We are raised to honor all the wrong explorers and discoverers - thieves planting flags, murderers carrying crosses. Let us at last praise the colonizers of dreams."- P.S. Beagle
"All that is gold does not glitter, Not all those who wander are lost; The old that is strong does not wither, Deep roots are not reached by the frost. From the ashes a fire shall be woken, A light from the shadows shall spring; Renewed shall be blade that was broken, The crownless again shall be king." - J.R.R. Tolkien
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