"Bill Spohn" wrote in message
...
Nothing you apply will prevent the dog from peeing where he's peed before

Not quite true.

We found that an electric fence wire placed where the dog liked to pee was
VERY
effective after only one application (although I shuddered in sympathy).

Yup, have used "electrical behavior modification therapy" on a dog that
came through to pee on the garbage can, clothes line posts and screen door.
It only takes once. I guarantee that dog won't even come to your side of
his property to pee after one zap.

Val