This might be common knowledge but we figured it out today in the clan. You can farm health fountains for the health fountain achievement.
You need to get 1000 health restorations from the fountains but they don't count if you have full life.
So what you need to do is fight the Butcher, there are two fountains in his room and they refill about every 30 seconds. So you can get 4 in a minute or so as if they refill it still counts. So doing the math, if you keep on your toes it's about 250mins to get the achieve versus god knows how many hundreds of hours by doing it naturally. You absolutely need to make sure life is missing from your globe before hitting the fountain, if you have health regen you may heal the damage you take too fast. So make sure you can actually see the missing life on the globe instead of relying on the damage numbers popping up on you.
You can do this on any boss with health fountains I guess but the Butcher is pretty easy, only one target to watch, and the fountains are pretty close to each other.