As I cleaned up the 2 inches of pee off the bathroom floor, I realized, indoor plumbing is stupid. Oh, and how do I know it was 2 inches of pee? Each week I put a disposable cup behind the toilet, it's like a rain gauge, except mine is measuring, well, urine. I catch roughly 1.5-2 inches of pee a week. If I were in Canada, I would measure in centimeters, but inches of pee it is.
As for the Pigs, I say outhouse. They like the outdoors, they like peeing outdoors, outhouses are outdoors, seems win-win. Well, except for the whole werewolf/zombie problem we have in our area. Eh, Pig 2 is good with animals, I'm sure they'll work something out.
So, outhouse for the Pigs, fancy white and pink bathroom upstairs with a deadbolt and a retinal scan security system for me. I would even go all Dolores Umbridge and decorate it with cats. I don't even like cats, it's just to keep the male pigs out, that includes the big stinky Ogre.