If you’re curious about house training adult dogs, you’ve probably gotten a senior dog from a shelter or some other source. Most dogs have been house trained at some point, unless they were exclusively outdoor dogs. The dog you have now may not have had enough opportunities at the shelter to get out properly and has gotten used to peeing or peeing in the kennel area. There may also be other pets in the new home that are causing the dog to urine mark. You may not yet know the new dog well enough to recognize the toilet cue. For the first time, assume your new dog is not house trained and start all over. It should go pretty quickly, especially if the dog has been previously house trained.
As mentioned above, with adult dog house training, you have to start all over. Let the dog know where it is appropriate to go and try to recognize her cues so you know when to let her out. In addition to this, use normal training techniques such as establishing a routine and supervising the dog so there is less chance of an accident. If you are unable to watch the dog constantly for the first few weeks, you should confine the dog in some way when you are not around. A crate is probably the best option for this if your dog is crate trained; otherwise, find some way to confine the dog if you are not around.
Like puppy training, adult dog house training requires you to clean up the mess quickly and thoroughly. Don’t punish the dog, but let him know the right place to go. This works best when you catch the dog in the act, then it will be easier for him to make the connection.
House training adult dogs is not as difficult as house training puppies due to the physical maturity of the animal, but you must follow the same procedures. You need to watch the dog and watch for cues from him, establish a routine, clean up messes quickly and thoroughly, and let him know the right place to go. When the dog does the right thing, praise him generously.