My personal experience with belly bands and doggy diapers:
We are working on pottytraining with Coby. He's going on 8 months old. Belly bands are just a band that goes around his belly area (not for pooping
). They are NOT a replacement for potty training, but they can help save your sanity at times. When we were trying to expand Coby's area of freedom, one room at a time, we would put the belly band on him. It either a) helps deter the urge to pee with something "on" that area or b) if he does have an accident, my hubby doesn't lose his temper having to clean up, a ruined couch, etc. We would usually remove it every 40-45 minutes or so and take him to his pad or outside to potty. Or we would watch him like a hawk for signs that he needed to go. For us, belly bands are really for US when we would fail to dilligently potty train. As Coby has become more trustworthy, we've weaned him off the belly bands. The only downside that I found to belly bands was that Coby was afraid of the velcro sound when I would take it off.
Also, we used to have a female from a puppy mill that had some behavioral issues and had a horrible submissive peeing problem - ending up with pee splattering everywhere as she jumped around. The problem wasn't solvable (for us, anyway), so we just put girlie diapers on her to keep us from scolding her for something that she couldn't control.
You can get either from makers right here on YT, just search in the Products Forum. Good Luck!!