Dogs vs Pond

My wife and I have two dogs that we love dearly. We just bought a
house that has a pond. Unfortunately, there's a leak in it and the
pump is burnt out so it's been sitting there growing mosquitos for
some time now. Our dogs got in it the other day and decided that the
liner tasted pretty good. They ate several holes into it and tore it
up pretty bad.

My question to my fellow dog-loving pond owners is this: What are my
options? Have you found anything that makes for a good deterrent?
Can I expect this to continue once the pond is full and running? I
need help. Any suggestions, other than shooting the dogs, etc. would
be greatly appreciated.

Thanks much,

John