LOL--- found that too funny Pom. Hey, can't expect the little guy to notice if he pools, and you're lucky they make those belly bands.
Small price to pay to have him around for a while yet, right? But he might get used to having to go more often and will just start asking for the door. Give him a few extra hugs (not too tight, don't want to start the waterworks..lol) Just teasing, I know that came as a shock, but if it continues maybe the vet can do something about it... I'm sure Sparky isn't the first little guy to have this happen. That lasix can really make you go so the poor little pooch probably feels a bit puzzled himself