We have a 5 yr old, neutered husky who won stop marking. We adopted him last September which is when he was neutered. He doesn't do it consistently and never in front of us so it's impossible to correct him. We leave him outside during the day, but he usually does it when we leave the room. He only marks three spots In three different rooms ( the corner of our bed, the toilet and the corner of our leather couch. We had the carpets professionally cleaned, I've bought all of the pet odor neutralizes I can find, but nothing, The trainer said he has no ideas since we never see him do it. I'm so sick of the smell and washing blankets. Does anyone have any ideas? Leaving him outside permanently isn't an option for us.

How much daily exercise does he get? And do you incorporate the use of a crate?

You could always use a belly band while curbing the problem by rewarding for urinating while outside on walks as well as crating while you aren't at home to prevent it from happening on his "spots."

We do a ton of outdoor play time, daily walks. We tried crating and restricting to a room, but he was abused pretty badly before we adopted him and he has horrible anxiety when restrained to the point that he's a danger to himself. We either leave him out in the house with our other dog (who has never marked inside) or outside. Other than the random marking, he's great when alone. I did not know about the belly band. I'll have to look that up. Thank you!

+1 on belly band